TY - BOOK T1 - The bedrock geology of Massachusetts T2 - U.S. Geological Survey Professional Paper Y1 - 1988 A1 - Hatch, Norman L A1 - Goldsmith, Richard A1 - Robinson, P A1 - Stanley, Rolfe S A1 - Wones, David R A1 - Zartman, Robert E A1 - Marvin, Richard F KW - #MassGeology KW - #MassGeologyMap KW - #StateGeologicMap KW - bedrock map KW - GEOLOGIC MAP KW - Goldsmith KW - Hatch KW - Hatch 1991 KW - State Geologic Map KW - Zen KW - Zen 1983 AB - USGS Professional Paper 1366 A-D & E-J: Books accompanying the 1983 State Bedrock Geologic Map, edited by Norman L. Hatch. Paper copies can be ordered via the USGS store (http://store.usgs.gov) using the USGS product numbers above or by clicking the links below. JF - U.S. Geological Survey Professional Paper PB - United States Geological Survey CY - Reston, VA VL - 1366 ER - TY - BOOK T1 - A Bibliography of Massachusetts Minerals 1796 - 1948 T2 - Special Department Publication Y1 - 1950 A1 - Johansenn, Warren I KW - #Collecting KW - #EducationalResources KW - #MassGeology KW - #MineralResources KW - #Minerals KW - collecting KW - fossil KW - localities KW - mineral KW - rock hunting JF - Special Department Publication PB - Dept. of Geology and Mineralogy, U-Mass CY - Amherst, MA ER - TY - BOOK T1 - Cape Anne: Its physical and environmental geology Y1 - 2015 A1 - Ross, Martin E. KW - #Fieldtrips KW - #MassGeology KW - #MassGeologyBooks KW - Anneite KW - Cape Anne KW - diabase KW - dikes KW - Dogtown KW - dogtown morraine KW - erratics KW - gabbro KW - Gloucester KW - granite KW - Halibut Point KW - Manchester by the Sea KW - morraine KW - phenocrysts KW - Rafe's Chasm KW - Rockport AB - "Cape Anne, Massachusetts has long been famous for its spectacular scenery and intriguing geology. This volume, written by a long time resident and geologist, brings to life the secrets of Cape Anne's geology as well as the environmental impact current and past land use has had on the cape from a geological perspective. Also included is a geologic field guide to ten fascinating localities along the rocky shore." - From the book cover. To obtain a copy, contact Martin Ross at m.ross@neu.edu The book is also available on Amazon.com UR - http://www.researchgate.net/publication/275963133_Cape_Ann_Its_Physical_and_Environmental_Geology ER - TY - BOOK T1 - Dinosaurs, Dunes, and Drifting Continents: the Geohistory of the Connecticut Valley Y1 - 2003 A1 - Richard D. Little PB - Earthview LLC. UR - http://www.earthview.pair.com/publications.html ER - TY - BOOK T1 - Landslides: Investigation and Mitigation T2 - Special Report Y1 - 1996 A1 - Transportation Research Safety Board KW - #Hazards KW - #Landslides KW - highway KW - Irene KW - landslides AB - TRB Special Report 247 - Landslides: Investigation and Mitigation contains comprehensive, practical discussions of field investigations, laboratory testing, and stability analysis procedures and technologies; comprehensive references to the literature; and discussions of case studies, state-of-the-art techniques, and research directions. JF - Special Report PB - The National Academies UR - https://www.mytrb.org/Store/Product.aspx?ID=5300 ER - TY - BOOK T1 - Massachusetts mineral and fossil localities Y1 - 1978 A1 - Gleba, Peter P KW - #Collecting KW - #EducationalResources KW - #MassGeology KW - #MineralResources KW - #Minerals KW - collecting KW - fossils KW - minerals AB - A PDF of popular Massachusets Mineral and fossil localities compiled by Peter Gleba in 1978, revised in 2008. PB - Krueger Enterprises CY - Cambridge, MA UR - http://www.geo.umass.edu/stategeologist/Gleba_Mass_Fossil-Min_Localities.pdf ER - TY - BOOK T1 - Roadside Geology of Massachusetts Y1 - 2001 A1 - James W. Skehan KW - educational resources KW - GEOLOGY KW - massachusetts PB - Mountain Press ER - TY - BOOK T1 - The stone quarry industry: Pelham, Massachusetts Y1 - 1998 A1 - Bigelow, Paul J KW - #EducationalResources KW - #MassGeology KW - #MineralResources KW - #Minerals KW - dimension stone KW - granite KW - industry KW - Pelham KW - quarries KW - quarry KW - stone UR - http://umass.worldcat.org/title/stone-quarry-industry-pelham-massachusetts/oclc/39956300&referer=brief_results U1 - A copy of this publication can be viewed at the U-Mass Libraries special collections ER - TY - BOOK T1 - Western Massachusetts Mineral Localities Y1 - 1992 A1 - Plante, Alan R KW - #Collecting KW - #EducationalResources KW - #MassGeology KW - #MineralResources KW - #Minerals KW - collecting KW - fossils KW - localities KW - minerals AB - A compilation of fossil and mineral collecting localities, with maps, in western Massachusetts by Alan R. Plante. PB - Valley Geology CY - Greenfield, MA ER - TY - CONF T1 - Latest Paleozoic through Mesozoic faults in north-central Massachusetts and their correlations with New Hampshire T2 - Geological Society of America - Northeastern section Y1 - 2016 A1 - Kopera J.P. A1 - Roden-Tice, M.K. A1 - Robert P Wintsch KW - #Bibliography KW - #StaffPubs KW - AFT KW - apatite KW - apatite fission track KW - brittle KW - Campbel Hill KW - Clinton Newbury KW - Cretaceous KW - extension KW - fault KW - fault zone KW - fault zones KW - faults KW - fission track KW - Fitchburg KW - Fitchburg Plutons KW - Flint Hill KW - I-290 KW - Johnny Appleseed KW - Jurassic KW - merrimack KW - mesozoic KW - Nashua Trough KW - Normal Faults KW - Oakdale formation KW - Permian KW - Pinnacle KW - Rt 2 KW - Sterling KW - Stodge Meadow Pond KW - Triassic KW - Wachusett KW - Wekepeke KW - Worcester Formation AB -
Several faults in south-central New Hampshire can be extended into Massachusetts (MA) as a result of detailed mapping in both states since publication of the MA state bedrock geologic map in 1983. Many of these faults delineate and/or cut Devonian metamorphic isograds in the Silurian Merrimack Belt in northern MA, and juxtapose chlorite-grade rocks in the Nashua sub-belt (NSB) between lithologically similar middle- to upper amphibolite-facies rocks on either side.
Recent mapping in the NSB, combined with previous studies, suggest it may represent a graben initially formed during latest Paleozoic transtension contemporaneous with formation of the Narragansett Basin in southeastern MA and RI. Mylonites along the Silver Hill-Wekepeke Fault (Robinson, 1981), bounding the western edge of the NSB, show east-side-down normal motion and west-side down normal motion along the Clinton-Newbury Fault Zone (CNFZ; Goldstein, 1994) which bounds the NSB’s southeastern margin. A possible extension of the Flint Hill fault system (NH) forms the eastern edge of the NSB offsetting the CNFZ with normal west-side down motion near Ayer, MA. Late brittle normal faults in the NSB are abundant. Late, low-T˚, west-side-down shear zones in the Nashoba Terrane and similar rocks to the south may also be related to down-dropping of the NSB.
AFT ages were collected across north-central MA to constrain its late uplift history. A ~127 Ma AFT age in the NSB is discontinuous with AFT ages in the belts adjoining it, with ~182-144 Ma ages west across the Wekepeke fault and ~160-167 Ma east across the CNFZ. To the west, the brittle southern extension of the Pinnacle Fault in NH (Stodge Meadow Pond fault of Peterson, 1984) follows the western edge of the Fitchburg plutons in MA while a well-exposed west-side down brittle normal fault system, possibly the southward extension of the Campbell Hill Fault (NH), is developed along their eastern edge. AFT ages of ~144-136 Ma immediately west of the Pinnacle Fault in MA are discontinuous with ~117-115 Ma ages immediately to the east within the Fitchburg plutons. A single ~106 Ma age in the plutons west of the Campbell Hill Fault in MA is discontinuous with ~128-123 Ma ages to the east of it. The discontinuities amongst AFT ages across these faults suggest that they may have been active through the Cretaceous.
JF - Geological Society of America - Northeastern section PB - Geological Society of America CY - Albany, NY UR - https://gsa.confex.com/gsa/2016NE/webprogram/Paper272576.html ER - TY - Generic T1 - Age-constraints on fabric reactivation in the Tusas Range, northern New Mexico, using electron-microprobe monazite geochronology; implications for the nature of regional approximately 1400 Ga deformation T2 - Abstracts with Programs - Geological Society of America Y1 - 2002 A1 - Joseph P Kopera A1 - Williams, Michael L. A1 - Jercinovic, Michael J. KW - #StaffPubs KW - dates KW - deformation KW - electron probe data KW - fabric KW - folds KW - geochronology KW - Geochronology 03 KW - geometry KW - in situ KW - Laurentia KW - Mesoproterozoic KW - metamorphism KW - monazite KW - New Mexico KW - northern New Mexico KW - orogeny KW - Ortega Group KW - overgrowths KW - phosphates KW - Precambrian KW - preferred orientation KW - proterozoic KW - reactivation KW - Southwestern U.S. KW - strain KW - structural analysis KW - Structural geology 16 KW - synclines KW - tectonics KW - Tusas Mountains KW - United States KW - upper Precambrian KW - zoning AB - A key issue in constructing models for the southward growth of Laurentia during the Proterozoic is distinguishing the effects of approximately 1650 Ma and approximately 1400 Ma tectonism. These events share similar styles of deformation and metamorphism, making it difficult to assign structures, fabrics, and metamorphic phases to a particular event. The fundamental geometry of this orogen in the southwestern United States is defined in many areas by fold-fault pairs and isolated synclines of thick approximately 1700 Ma quartzite. In-situ EMP chemical dating of monazite, combined with detailed structural analysis, indicates that such synclines within the Tusas Range of northern New Mexico (locally F (sub 3) ) were substantially modified, if not developed, during approximately 1400 Ma tectonism. Monazite grains from the Ortega quartzite in the central Tusas Range display a shape preferred orientation parallel to the axial-planar fabric of these folds (S (sub 3) ), with overgrowth rims preferentially developed in the X direction of strain. These monazite grains have either >1700 Ma cores or approximately 1650 Ma cores with approximately 1400 Ma overgrowth rims, or are entirely approximately 1400 Ma in age. Field and microstructural observations show that the upright, east-west trending F (sub 3) and S (sub 3) are reactivations of older, northwest-trending fabrics and structures. The presence of approximately 1650 Ma overgrowth rims on monazite grains from the central and northern Tusas Range implies that these folds and fabrics may have nucleated prior to approximately 1400 Ma tectonism. Previous studies have shown an increase in approximately 1400 Ma monazite ages from north to south within the range, consistent with a similar increase in metamorphic grade. This gradient suggests that the central and northern Tusas may have been at progressively shallower crustal levels during approximately 1400 Ma tectonism, thus increasing the preservation of older fabrics, structures, and metamorphic monazite from south to north within the range. These observations support the hypothesis that approximately 1400 Ma tectonism locally reactivated and utilized pre-existing structures and fabrics, but had also profoundly shaped the geometry and metamorphic character of the orogen. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 34 SN - 00167592 UR - http://silk.library.umass.edu/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=geh&AN=2004-044516&site=ehost-live&scope=site IS - 66 N1 - Accession Number: 2004-044516; Conference Name: Geological Society of America, 2002 annual meeting; Denver, CO, United States; Conference Date: 20021027; Language: English; Coden: GAAPBC; Collation: 1; Collation: 180; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200413; Monograph Title: Geological Society of America, 2002 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Arsenic in central Massachusetts bedrock and groundwater T2 - Abstracts with Programs - Geological Society of America Y1 - 2010 A1 - McTigue, David F. A1 - Stein, Carol L. A1 - Brandon, William C. A1 - Joseph P Kopera A1 - Keskula, Anna J. A1 - Koteas, G. Christopher KW - #StaffPubs KW - alteration KW - arsenic KW - arsenides KW - arsenopyrite KW - Ayer Granodiorite KW - BEDROCK KW - central Massachusetts KW - chelmsford granite KW - Devonian KW - dilation KW - discharge KW - dissolved materials KW - drinking water KW - Eh KW - fractures KW - General geochemistry 02A KW - geochemistry KW - granites KW - ground water KW - igneous rocks KW - joints KW - massachusetts KW - metals KW - metamorphism KW - meteoric water KW - overburden KW - Paleozoic KW - petrography KW - plutonic rocks KW - pollutants KW - reduction KW - solubility KW - solution KW - sulfides KW - theoretical models KW - United States AB - Across the New England "arsenic belt," groundwater arsenic (As) concentrations often exceed the EPA's 0.01-mg/L drinking water standard. In overburden groundwater at a site within this belt in north-central Massachusetts, As has been reported at levels up to 7.6 mg/L. Bedrock at the site consists of Silurian Central Maine Terrane metasediments intruded by the Devonian Ayer granodiorite and Chelmsford granite. Exchange of hydrothermal fluids between these lithologies during intrusion and later deformation, faulting, and metamorphism resulted in crystallization of arsenic-bearing minerals, including arsenopyrite. Quaternary deglaciation and unloading dilated joint systems in the bedrock, allowing increased exposure of the mineralogy to meteoric water. Several arsenopyrite alteration products (e.g., scorodite), of varying solubilities, precipitated on fracture surfaces and along grain boundaries between major phases. In the emerging conceptual model for this site, groundwater is recharged in bedrock uplands and moves downgradient through the fracture network, becoming increasingly reducing as it moves along a flow path. Arsenic dissolved from arsenopyrite and arsenic-bearing alteration phases in bedrock remains in solution until the groundwater discharges to lowland areas hydraulically downgradient. In these adjacent lowlands, glacial sand and gravel overburden lies above the bedrock. When the reducing water reaches more oxidizing conditions, As-sorbing hydrous ferric oxides (HFO) precipitate out on the aquifer solids, resulting in accumulation of As in the deep overburden aquifer. A large landfill at this site, now closed and capped, imposed reducing conditions, and As is mobilized into groundwater by reductive dissolution of the HFO. The presence of elevated As in groundwater is consistent with arsenic-bearing phases generated in granitoids at depth during regional metamorphism, which were subsequently altered, and are being solubilized at present by the circulation of shallow groundwater through varying redox environments. This scenario is supported by geochemical and petrographic studies of the granitoids and the occurrence of the highest groundwater and soil arsenic concentrations in the adjacent deep overburden. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 42 SN - 00167592 UR - https://gsa.confex.com/gsa/2010AM/finalprogram/abstract_182430.htm IS - 55 N1 - Accession Number: 2011-044094; Conference Name: Geological Society of America, 2010 annual meeting; Denver, CO, United States; Conference Date: 20101031; Language: English; Coden: GAAPBC; Collation: 2; Collation: 216-217; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201125; Monograph Title: Geological Society of America, 2010 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Characterizing fractured crystalline bedrock aquifers using hydrostructural domains in the Nashoba Terrane, eastern Massachusetts T2 - Abstracts with Programs - Geological Society of America Y1 - 2006 A1 - Alex K Manda A1 - Stephen B Mabee A1 - David F Boutt KW - #StaffPubs KW - anisotropy KW - aquifers KW - BEDROCK KW - characterization KW - connectivity KW - crystalline rocks KW - eastern Massachusetts KW - fractures KW - ground water KW - heterogeneity KW - hydraulic conductivity KW - Hydrogeology 21 KW - massachusetts KW - Nashoba terrane KW - outcrops KW - physical properties KW - site exploration KW - United States KW - water wells AB - Fractured crystalline bedrock aquifers are good sources of potable water in many parts of the world. However, siting of highly productive wells in these rock units remains a challenging and expensive task because fracture development at the regional scale is both heterogeneous and anisotropic. Using low cost field data to define units of rock that have similar lithologic and fracture characteristics can significantly reduce time and energy spent on determining areas with better than average aquifer productivity. These physical characteristics that impart a particular hydraulic character on rocks are used to delineate regions with similar hydrologic characteristics called hydrostructural domains (Mackie, 2002). Hydrostructural domains are delineated from fracture characterization data that were collected from 79 outcrops located in the Nashoba Terrane of eastern Massachusetts. Information collected and used to delineate the domains include the number and distribution of fracture sets, types of fractures present or absent, the degree of fracture development, fracture intensity/density, fracture connectivity and rock type. Discrete fracture networks are generated from the fracture characterization data to simulate groundwater flow in the region. Conductivity of particular units is evaluated and compared to results from existing pumping tests obtained from the US Geological Survey. Preliminary results indicate that there is great value in utilizing fracture characteristic data obtained from surface outcrops to predict subsurface groundwater flow characteristics of fractured bedrock aquifers. Water managers, developers and decision makers are eager to know which areas are the most promising for encountering highly conductive zones in the subsurface. Collecting extensive structural data from surface outcrops, although not as accurate as drilling wells, is a cheaper alternative that could provide at least a rough estimate of the hydraulic properties of fractured rocks leading to effective siting of new water wells. Hydrostructural domain maps may pinpoint specific areas that have a high potential for wells to encounter highly conductive zones and could therefore be a powerful tool in transferring information from one site to another without having to repeatedly undertake extensive site characterization. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 38 SN - 00167592 UR - https://gsa.confex.com/gsa/2006AM/finalprogram/abstract_113075.htm IS - 77 N1 - Accession Number: 2007-032741; Conference Name: Geological Society of America, 2006 annual meeting; Philadelphia, PA, United States; Conference Date: 20061022; Language: English; Coden: GAAPBC; Collation: 1; Collation: 25; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200709; Monograph Title: Geological Society of America, 2006 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Comparison of lineaments with bedrock structures along a cross-strike transect, eastern Massachusetts T2 - Abstracts with Programs - Geological Society of America Y1 - 1998 A1 - Curry, Patrick J. A1 - Williams, Katherine W. A1 - Stephen B Mabee A1 - Hardcastle, Kenneth C. KW - #StaffPubs KW - aerial photography KW - BEDROCK KW - eastern Massachusetts KW - faults KW - geophysical surveys KW - imagery KW - lineaments KW - massachusetts KW - remote sensing KW - SLAR KW - Structural geology 16 KW - surveys KW - tectonics KW - United States AB - Lineament data derived from three platforms, 1:58,000 color infrared photography (N = 770), 1:80,000 black and white photographs (N = 1106), and 1:250,000 SLAR imagery (N = 521), were used to determine the degree of coincidence between mapped faults and lineaments along a cross strike transect in eastern Massachusetts. The study area extends 27 km in an east-west direction and 8 km north-south and is located along the trace of a tunnel currently being constructed approximately 90 m below grade. Structural data are presently being collected from surface exposures along the tunnel trace and from within the 5 m diameter tunnel bore. These structural data will be compared with lineament data in the future. Reported here are the results of a comparison between the locations of lineaments and the position of major faults mapped on the Bedrock Geologic Map of Massachusetts (1:250,000). Lineaments were first mapped on acetate overlays in two independent trials and compared to determine which lineaments could be reproduced at the same geographic location. Reproducibility results indicate that 21 to 33% of the lineaments can be reproduced at the same spatial position and are comparable to results obtained from other studies. The length of reproducible lineaments proximal to and approximately parallel with mapped faults was compared with the total length of faults (137 km) within the study area. Results show that a small percentage of the faults are coincident with reproducible lineaments. Three percent of the lengths are mapped by reproducible lineaments observed on the SLAR imagery, 7% by the 1:80,000 scale photographs, and 5% by the 1:58,000 color infrared photography. This indicates that 97%, 93%, and 95% of the reproducible lineaments, respectively, are related to other geologic features in the bedrock or nothing at all. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 30 SN - 00167592 IS - 77 N1 - Accession Number: 1999-032582; Conference Name: Geological Society of America, 1998 annual meeting; Toronto, ON, Canada; Conference Date: 19981026; Language: English; Coden: GAAPBC; Collation: 1; Collation: 278; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 199912; Monograph Title: Geological Society of America, 1998 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Connecticut geothermal map series; tools for exploration and development T2 - Abstracts with Programs - Geological Society of America Y1 - 2013 A1 - Gagnon, Teresa K. A1 - Thomas, Margaret A. A1 - John Michael Rhodes A1 - Stephen B Mabee KW - #StaffPubs KW - BEDROCK KW - Connecticut KW - Economic geology, geology of energy sources 29A KW - geothermal energy KW - heat flow KW - information management KW - maps KW - technology KW - United States AB - The CT and MA Geological Surveys are collaborative partners in the National Geothermal Data Project funded by DOE through the Association of American State Geologists. The goal is to develop information to assist in locating State geothermal resources and provide data for better design of EGS systems in bedrock or unconsolidated sediments. The first 2 yrs of the investigation focused on data collection to explore the heat generating potential of CT bedrock and thermal conductivity (TC) properties of CT sediments. Rock chemistry, density, and TC were used to calculate heat production, heat flow, and thermal profiles at depth for >240 samples of 55 bedrock units. Heat production values (hpvs) were determined using concentrations of radiogenic (K, U, Th) and measured sample density. Heat flow values were determined using the calculated hpvs for the samples and hpvs of avg crustal material of New England (Rhodes, personal com., 2012). Thermal profiles at depths up to 6 km were generated using hpv, heat flow, and TC values for each sample. Results indicate that areas with highest heat flow values are in southeastern CT bedrock. 100 sediment samples were collected from 20 units targeted using the Surficial Materials and Quaternary Maps of CT. TC Measurements were made using a Decagon KD2-Pro Meter. Physical profiles of sediment (grain size, sand, silt, clay percent, bulk density, porosity) were created. Current efforts involve synthesis of calculated hpvs with direct heat flow measurements from existing geothermal installations to compile a geothermal resource map series. The series includes heat production, inferred heat flow, TC, and thermal profile maps for bedrock, and a TC map for sediments. These maps will assist geothermal contractors in site plan and system design. Heat production and inferred heat flow maps summarize model results for bedrock units. Thermal profile maps depict models of inferred temperature increases at depth, providing estimates for 3,4,5, and 6 km at specific locations, and provide depths needed to achieve desired temperature for either EGS or larger direct heat applications. TC mapping of sediments depict favorable areas for geothermal installations, and may be used in design of various ground source heat pump systems. All data and mapping is accessible via the National Geothermal Data System. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 45 SN - 00167592 UR - https://gsa.confex.com/gsa/2013NE/webprogram/Paper216450.html IS - 11 N1 - Accession Number: 2014-021035; Conference Name: Geological Society of America, Northeastern Section, 48th annual meeting; Bretton Woods, NH, United States; Conference Date: 20130318; Language: English; Coden: GAAPBC; Collation: 1; Collation: 50; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201414; Monograph Title: Geological Society of America, Northeastern Section, 48th annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Converting paper geologic maps to digital products; the search for an effective method T2 - Abstracts with Programs - Geological Society of America Y1 - 2003 A1 - Stephen B Mabee A1 - Newton, R. A1 - Stepanov, A. A1 - Ene, D. A1 - Ivanov, D. KW - #StaffPubs KW - cartography KW - data bases KW - data processing KW - digital cartography KW - digital data KW - geographic information systems KW - geomorphology KW - Geomorphology 23 KW - government agencies KW - information systems KW - mapping KW - massachusetts KW - National Geologic Map Database KW - NGMDB KW - survey organizations KW - United States AB - MassGIS and the Office of the Massachusetts State Geologist are working collaboratively with the USGS to vectorize 85, published 7.5-minute surficial geologic maps in order to prepare a statewide coverage of the till-glacial stratified drift boundary. Conversion of old geologic maps from paper copies to new digital products is a complex task requiring an efficient method that minimizes errors and limits the need for heads-up digitizing. The main issue in the conversion is the accurate separation of line work (geologic contacts) on the map from the halftone colors in the polygon fills and achieving this without creating an extensive editing effort in the GIS environment. For this project, we elected to process the scanned and rectified images of the surficial geologic maps in Photoshop and adjust the resulting line work in ArcScan before vectorizing the polygons. Photoshop is an extremely sophisticated, commercial raster image editing software with a very user-friendly interface. Using tools such as the "Magic Wand" (selection of similar pixels with variable threshold control), "Select Color Range" (find all instances of similar colors), "Grow and Contract Selection", "Stroke Selection", and Photoshop "Layers", we are able to create a set of very accurate, noise free boundary lines, before the vectorization process occurs. This methodology is, in effect, "on the fly" editing of the boundary lines, eliminating the large number of errors and artifacts that "automated" vectorizing processes inevitably generate (and which must be tediously edited and/or removed later with vector editing software). Line tracings produced in Photoshop are exported to ArcScan where, using the original raster image as a background, a preview of the proposed vector is adjusted, if needed, using simple editing tools in ArcScan. Once an optimal match is achieved visually, the vectors are generated. The advantage of this approach is that the bulk of the line editing occurs early in the process, prior to vectorization, and can be achieved by moderately trained personnel using "off the shelf" commercial software. This provides greater control of the quality of the finished product because there are no computer generated false lines that need to be found and removed later with a much more complex process. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 35 SN - 00167592 UR - https://gsa.confex.com/gsa/2003AM/finalprogram/abstract_64322.htm IS - 66 N1 - Accession Number: 2006-037984; Conference Name: Geological Society of America, 2003 annual meeting; Seattle, WA, United States; Conference Date: 20031102; Language: English; Coden: GAAPBC; Collation: 1; Collation: 276; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200611; Monograph Title: Geological Society of America, 2003 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Correlation of lineaments to ground water inflows in the MWRA tunnel T2 - Abstracts with Programs - Geological Society of America Y1 - 2001 A1 - Stephen B Mabee A1 - Curry, Patrick J. A1 - Hardcastle, Kenneth C. KW - #StaffPubs KW - black and white KW - construction KW - correlation KW - eastern Massachusetts KW - Engineering geology 30 KW - experimental studies KW - flow rates KW - geophysical methods KW - ground water KW - infrared methods KW - lineaments KW - mapping KW - massachusetts KW - metamorphic rocks KW - methods KW - movement KW - photogeology KW - radar methods KW - remote sensing KW - SLAR KW - tectonics KW - tunnels KW - United States AB - Lineaments derived from three image types (1:80,000 black and white (BW), 1:58,000 color infrared (CIR), and 1:250,000 side-looking airborne radar (SLAR)) were compared to water-bearing features within a 9.6 km section of tunnel being constructed through foliated crystalline metamorphic bedrock in a glaciated region of eastern Massachusetts. Lineaments drawn by three observers during two independent trials (N = 9137) were reduced to three sets (one per image type) of coincident lineaments (N = 794). Thirty-five coincident lineaments crossed the tunnel. Nineteen discrete flow zones, each producing less than or equal to 19 L/min, were identified in the tunnel and used to quantify the reliability of lineament analysis as a method of predicting water-bearing features in glaciated metamorphic rocks. Thirteen (68%) of the flow zones correlate with coincident lineaments, six zones correlate with more than one image type, and one zone correlates with all three image types. Overall, it is difficult to distinguish lineaments that will be successful in predicting water-bearing zones from those that will be unsuccessful without considering other corroborating evidence. Most of the observed flow (80%) correlates with northwest-trending coincident lineaments. However, the majority of the flow (67%) associated with these lineaments is produced from structures that strike to the north or northeast. In addition, only fifteen of the thirty-five coincident lineaments correlate with the flow zones indicating that twenty lineaments are not associated with any appreciable flow. Six flow zones are undetected by the lineament analysis. In this study, BW lineaments are able distinguish high-yield through-going structures (at the 90% confidence level) with greater reliability than the SLAR or CIR lineaments. However, linking bedrock type, overburden type, topographic position, and proximity to surface water bodies with lineament analysis improves the predictive capability of the lineament method. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 33 SN - 00167592 UR - https://gsa.confex.com/gsa/2001AM/finalprogram/abstract_22810.htm IS - 66 N1 - Accession Number: 2004-013313; Conference Name: Geological Society of America, 2001 annual meeting; Boston, MA, United States; Conference Date: 20011101; Language: English; Coden: GAAPBC; Collation: 2; Collation: 114-115; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200405; Monograph Title: Geological Society of America, 2001 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - A cost-effective technique for reconnaissance evaluation of aquifers T2 - Proceedings of the National Symposium on Aquifer Restoration and Ground-Water Monitoring Y1 - 1983 A1 - Heeley, Richard W. A1 - Stephen B Mabee KW - #StaffPubs KW - aquifers KW - case studies KW - economics KW - evaluation KW - Groton KW - ground water KW - hydrogeology KW - Hydrogeology 21 KW - Mashpee KW - massachusetts KW - methods KW - monitoring wells KW - Newton KW - pollution KW - pump tests KW - specific capacity KW - surveys KW - transmissivity KW - United States KW - waste disposal KW - water resources KW - water supply KW - water wells KW - wells KW - Westford JF - Proceedings of the National Symposium on Aquifer Restoration and Ground-Water Monitoring PB - National Water Well Association : Worthington, OH, United States CY - United States VL - 3 SN - 07499515 UR - https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&cad=rja&uact=8&ved=0CDgQFjAD&url=http%3A%2F%2Fuwyo.coalliance.org%2Fislandora%2Fobject%2Fwyu%253A10425%2Fdatastream%2FOBJ%2Fdownload%2FProceedings_Of_The_Third_National_Symposium_On_Aquifer_R N1 - Accession Number: 1984-022767; Conference Name: Third national symposium on aquifer restoration and ground-water monitoring; Columbus, OH, United States; Conference Date: 19830525; Language: English; Collation: 7; Collation: 213-219; Publication Types: Serial; Conference document; Updated Code: 1984; Illustration(s): illus. incl. 3 tables, sketch maps; Number of References: 3; Monograph Title: Proceedings of the Third national symposium on aquifer restoration and ground-water monitoring; Monograph Author(s): Nielsen, David M. [editor]; Reviewed Item: Analytic JO - Proceedings of the National Symposium on Aquifer Restoration and Ground-Water Monitoring ER - TY - Generic T1 - Deep geothermal potential of New England granitoids; the Fall River Pluton, southeastern Massachusetts T2 - Abstracts with Programs - Geological Society of America Y1 - 2011 A1 - Goodhue, Nathaniel A1 - Koteas, G. Christopher A1 - John Michael Rhodes A1 - Stephen B Mabee KW - #StaffPubs KW - depth KW - Economic geology, geology of energy sources 29A KW - Fall River Pluton KW - geochemistry KW - geothermal energy KW - gneisses KW - granites KW - Igneous and metamorphic petrology 05A KW - igneous rocks KW - intrusions KW - massachusetts KW - metamorphic rocks KW - plutonic rocks KW - plutons KW - southeastern Massachusetts KW - United States AB - Devonian-aged plutonic rocks that are interpreted to be part of the Fall River pluton, along the southern edge of the Narragansett Basin, appear to have potential as a source of deep geothermal energy. The Narragansett Basin covers a approximately 1500 Km (super 2) area in southern Massachusetts and is dominated by complexly deformed and metamorphosed, Pennsylvanian-aged, fluvial and alluvial deposits. A northeast-striking series of brittle faults and discrete shear zones define the southern margin of the basin. Preliminary modeling of igneous and gneissic fabrics from outcrops along the southern edge of the basin show that the granite dips predominantly north, northeast. This pattern suggests that granitoids along the southern edge of the basin continue beneath the Narragansett Basin and correlate with granitoids exposed to the north. Regional joint sets in the Fall River pluton can be grouped into three dominant clusters at 350 degrees , 90 degrees , and 250 degrees based upon 86 field measurements. Low-angle sheeting joints are also common and suggest interconnected fracture networks at depth. Preliminary geochemistry from the Fall River pluton suggests that feldspars and accessory minerals contain the appropriate concentrations of heat producing elements, primarily U, Th, and K, to be a reasonable geothermal resource. K (sub 2) O values range from 2.4 to 5.0 weight percent. U and Th values (in ppm) range from 0.9 to 6.2 and 2.9 to 30.1 respectively. Assuming a relatively consistent composition at depth, a density of 2.6 kg/m (super 3) , and a thermal conductivity of 2.9 W/m degrees C, initial temperature modeling suggests average temperatures of 81 degrees C at depths of 5 kilometers and 93 degrees C at depths of 6 kilometers. Temperature estimates increase to approximately 150 degrees C and approximately 170 degrees C respectively when a two kilometer thick sediment package is modeled overlying the granitoids. The goal of current and future work is to improve assumptions about compositional uniformity as well as the regional position of granitoids at depth. At the conclusion of this work we hope to develop a protocol for studying geothermal potential of buried granitoids in New England in the absence of reliable drill-hole data. Preliminary estimates from this project suggest that basins underlain by granitoids of compositions similar to that of the Fall River pluton have reasonable potential as a deep geothermal resource. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 43 SN - 00167592 UR - https://gsa.confex.com/gsa/2011NE/finalprogram/abstract_185900.htm IS - 11 N1 - Accession Number: 2012-031359; Conference Name: Geological Society of America, Northeastern Section, 46th annual meeting; Geological Society of America, North-Central Section, 45th annual meeting; Pittsburgh, PA, United States; Conference Date: 20110320; Language: English; Coden: GAAPBC; Collation: 1; Collation: 63; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201217; Monograph Title: Geological Society of America, Northeastern Section, 46th annual meeting; Geological Society of America, North-Central Section, 45th annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Deep geothermal resource potential in Connecticut; progress report T2 - Abstracts with Programs - Geological Society of America Y1 - 2012 A1 - Gagnon, Teresa K. A1 - Koteas, G. Christopher A1 - Thomas, Margaret A. A1 - Stephen B Mabee A1 - John Michael Rhodes KW - #StaffPubs KW - Connecticut KW - Economic geology, geology of energy sources 29A KW - energy sources KW - geothermal energy KW - geothermal exploration KW - geothermal gradient KW - granites KW - heat flow KW - igneous rocks KW - New England KW - plutonic rocks KW - temperature KW - thermal conductivity KW - United States AB - The Connecticut and Massachusetts Geological Surveys are collaborating on a National Geothermal Data Project funded by the US Department of Energy through the Association of American State Geologists.Geothermal resources in Connecticut (CT) to date have been exploited using near surface ground source heat pump technology. This is the first investigation of CT deep geothermal resources. Many CT granitoids contain heat producing elements. The goal is to identify geologic units capable of producing enough heat, at reasonable drilling depths, to operate a viable geothermal power plant. Target rock units must contain enough uranium, thorium and potassium (U/Th/K) in combination with heat generated through the natural geothermal gradient of the Earth to generate electricity and co-produced direct heating. Heat at depth can be concentrated by an overlying insulating layer of sedimentary rocks and glacial sediments. 27 CT bedrock units were selected for sampling using existing mapping. 120 samples were analyzed using X-Ray Fluorescence Spectrometry. Heat production values (HPVs) at or greater than 4 mu W/m (super 3) were considered to be of interest. Values ranging from 4 to 18 mu W/m (super 3) were calculated for 7 of the 27 rock units. Elevated concentrations of thorium, ranging from 10.5 ppm to 245 ppm, were the primary contributors to increased HPVs. Initial results indicate that the warmest rocks are Permian and Precambrian, which is consistent with earlier results from granitoid bodies underlying the Atlantic Coastal Plain of Virginia (Speer et al., 1979). Additional bedrock samples will be analyzed to further characterize geochemical variations and potential HPVs of target rock units. Direct thermal conductivity measurements are being made of select bedrock samples in addition to sedimentary rocks of the Hartford Basin. Theoretical thermal profiles derived from rock geochemistry will provide an estimate of heat generated at depth for geologic units of interest and assist in determining the potential for an insulating layer overlying heat producing granitoids. Direct thermal conductivity measurements of unconsolidated materials throughout CT are also being made to support the ground-source heat pump industry. All data and mapping will be accessible via the National Geothermal Data System (NGDS). JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 44 SN - 00167592 UR - https://gsa.confex.com/gsa/2012NE/finalprogram/abstract_200494.htm IS - 22 N1 - Accession Number: 2012-090080; Conference Name: Geological Society of America, Northeastern Section, 47th annual meeting; Hartford, CT, United States; Conference Date: 20120318; Language: English; Coordinates: N405900N420300W0714800W0734400; Coden: GAAPBC; Collation: 1; Collation: 77; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201247; Monograph Title: Geological Society of America, Northeastern Section, 47th annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Dynamic digital maps; an outreach tool for geoscience research, mapping and education in National Park Service administered lands T2 - Abstracts with Programs - Geological Society of America Y1 - 2009 A1 - Condit, Christopher D. A1 - Steven A Nathan A1 - Stephen B Mabee KW - #StaffPubs KW - cartography KW - digital cartography KW - digital data KW - digital terrain models KW - education KW - Environmental geology 22 KW - government agencies KW - land use KW - mapping KW - national parks KW - public lands KW - research KW - U. S. National Park Service KW - United States AB - The Dynamic Digital Map of Selected Sedimentary Rocks in Western Massachusetts (DDM-SedRxWMa) is an example of what can be developed for all National Park Administered land. On starting the program, the user chooses the media source: either "Web-Access" (from a server) or "Local Access" (from DVD, flash or disk drive) and immediately sees a "Home Screen". The Home Screen displays the location of five detailed maps and buttons linked to Indexes (lists) of DDM content. Each map contains numbered icons that link that location to a field guide of that site. Camera icons on the detailed maps point in the direction photos were taken; many photos are oblique aerials that place the map features in context. The aerials contain camera icons of ground photos along the field trip route. The maps can be toggled between an orthophoto map or a topographic map, each geo-referenced. Key field guide locations have 360-degree QuickTime panoramics. All images and movies have captions. The DDM-SedRxWMa program is made from the DDM-Template and is capable of displaying text (captions or field guides) at 3 different user-selectable levels. The text might instead be displayed in 3 different languages. The DDM-SedRxWMa, which includes a 7 minute automated guided tour, can be downloaded at http://ddm.geo.umass.edu/ddm-sedrxwma/ The DDM-Template is an open source program that anyone can use to make their own DDM. It and a step-by-step manual (the "Cookbook") are available along with over 20 DDMs at http://ddm.geo.umass.edu). Making a DDM from the Template requires the use of the relatively inexpensive and easy to learn, multi-platform programming environment Runtime Revolution (www.runrev.com). Maps and photos (jpeg files) and movies are stored outside the program, which acts as an organizational framework and index to present it. Text and data are saved within the program and can be imported from html, rtf or txt format files. Map unit labels, sample sites, and graphics, such as camera icons (created in the Template) can be overlain on the maps or images; and provide a link to view the associated data or images. Once the Template has been modified and renamed, a single step creates 3 royalty-free, stand-alone programs, one each for Unix, Windows and Macintosh operating systems. A DDM program matching the user's operating system can be made available online. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 41 SN - 00167592 UR - https://gsa.confex.com/gsa/2009AM/finalprogram/abstract_166833.htm IS - 77 N1 - Accession Number: 2011-030563; Conference Name: Geological Society of America, 2009 annual meeting; Portland, OR, United States; Conference Date: 20091018; Language: English; Coden: GAAPBC; Collation: 1; Collation: 365; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201118; Monograph Title: Geological Society of America, 2009 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Embracing the digital revolution; issues of concern to geological surveys T2 - Abstracts with Programs - Geological Society of America Y1 - 2009 A1 - Joseph P Kopera KW - #StaffPubs KW - cartography KW - digital cartography KW - digitization KW - geographic information systems KW - Geologic maps 14 KW - information systems KW - mapping KW - techniques AB - Advancements in GIS and digital mapping techniques have improved the efficient production and visualization of geologic data. The Office of the Massachusetts State Geologist (OMSG) utilizes these tools extensively to produce geologic maps and fulfill its mission of making geologic data freely accessible to the public. Such tools have increased efficiency at the OMSG in fieldwork preparation and map production, in addition to creating new types of geologic maps. This same technology also creates new problems that need to be addressed: 1.) Accessing digital data inherently requires more specialized knowledge than reading a paper document. Most citizens do not have access to commercial GIS software, know how to use it, or know where to get digital data. 2.) The longevity of digital data at present is problematic. Various proprietary data formats and unstable digital media quickly become antiquated and unusable. 3.) Digital geospatial datasets tend to lack uniform and adequate metadata on their quality, origin, purpose, context, and appropriateness of use. In the rush to embrace digital technology it is useful to keep in mind that such tools should simplify our work as geologists and increase the utility and availability of the data we produce. Issues of accessibility can be addressed by education and the adoption of non-proprietary open-source software, data formats and standards. Problems with the viability of data may eventually be solved by advances in technology. In the meantime, stable paper or mylar maps should be not be abandoned. The creation and maintenance of high-quality metadata and well-organized, thorough, centralized databases is critical in keeping the flood of new digital data navigable. In the end, we must be able to easily modify any new technology we adopt to address the problems it presents, or we risk compromising our discipline to fit the limitations of that technology. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 41 SN - 00167592 UR - https://gsa.confex.com/gsa/2009NE/finalprogram/abstract_155603.htm IS - 33 N1 - Accession Number: 2009-099684; Conference Name: Geological Society of America, Northeastern Section, 44th annual meeting; Portland, ME, United States; Conference Date: 20090322; Language: English; Coden: GAAPBC; Collation: 1; Collation: 99; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200953; Monograph Title: Geological Society of America, Northeastern Section, 44th annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Evidence for arsenic-mineralization in granitic basement rocks, Ayer Granodiorite, northeastern Massachusetts T2 - Abstracts with Programs - Geological Society of America Y1 - 2010 A1 - Koteas, G. Christopher A1 - Keskula, Anna J. A1 - Stein, Carol L. A1 - McTigue, David F. A1 - Joseph P Kopera A1 - Brandon, William C. KW - #StaffPubs KW - acadian KW - arsenic KW - arsenides KW - arsenopyrite KW - Ayer Granodiorite KW - Berwick formation KW - fractured materials KW - geochemistry KW - granodiorites KW - Igneous and metamorphic petrology 05A KW - igneous rocks KW - lower Paleozoic KW - massachusetts KW - Merrimack Synclinorium KW - metals KW - metamorphic rocks KW - metamorphism KW - metasedimentary rocks KW - metasomatism KW - Middlesex County Massachusetts KW - migration of elements KW - mineralization KW - Mineralogy of non-silicates 01C KW - northeastern Massachusetts KW - orogeny KW - Paleozoic KW - plutonic rocks KW - pollutants KW - pollution KW - pyrite KW - sulfides KW - United States AB - Core samples of the Ayer Granodiorite along the eastern margin of the Merrimack Belt in northeastern Massachusetts host a series of sulfide and oxide phases that resulted from interaction with sulfide-bearing meta-sedimentary host rocks. Euhedral arsenopyrite grains are found with ilmenite, apatite, and REE phosphates in zones that generally mimic the intersection between a gneissic fabric and a relict magmatic foliation. Arsenopyrite crystals are typically elongate with this lineation. Euhedral to subhedral pyrite crystals have also been observed, but are localized to areas without As-bearing phases. Micro-fractures that parallel either a steep NW-striking joint set or gently-dipping sheeting joints are commonly filled with interwoven calcite cements and As-bearing Fe-oxides. Surface coatings of major fracture sets are also characterized by Fe-As-rich rinds that host micron-scale sub-angular particles of quartz, feldspars, and phyllosilicates. Where micro-fractures are most concentrated, sulfide-bearing minerals are less common; however, subhedral to anhedral arsenopyrite grains do occur along some open micro-fractures. These crystals preserve lobate grain boundaries and are associated with As-bearing Fe-oxide-rich coatings along adjacent fractures. The presence of 1) pyrite, 2) arsenopyrite associated with phosphates, and 3) As-bearing fracture coatings suggests multiple stages of mineralization. We propose that intrusion-related fluid-rock interaction associated with heating of nearby sulfide-bearing schists of the Berwick Formation during Acadian orogenesis may have provided the necessary constituents for growth of sulfide phases in the Ayer. It appears that Late Devonian greenschist facies metamorphism and metasomatism led to mineralization that generated arsenopyrite and accompanying phosphates; however, the role of the cross-cutting Clinton Newbury Fault Zone as a conduit for hydrothermal fluids may also be important. Lower temperature As-bearing Fe-oxide and calcite coatings on open fractures surfaces may be associated with a change from lithostatic- to hydrostatic-pressures during post-glacial regional uplift. This mineralization appears to be synchronous with intense microfracturing that post-dates all other mineralization. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 42 SN - 00167592 UR - https://gsa.confex.com/gsa/2010NE/finalprogram/abstract_169998.htm IS - 11 N1 - Accession Number: 2010-100047; Conference Name: Geological Society of America, Northeastern Section, 45th annual meeting; Geological Society of America, Southeastern Section, 59th annual meeting; Baltimore, MD, United States; Conference Date: 20100314; Language: English; Coordinates: N420800N424400W0710200W0715300; Coden: GAAPBC; Collation: 1; Collation: 160; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201052; Monograph Title: Geological Society of America, Northeastern Section, 45th annual meeting; Geological Society of America, Southeastern Section, 59th annual meeting; joint meeting, abstracts volume; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Factors influencing groundwater inflows in a newly constructed cross-strike tunnel, eastern Massachusetts; 2, Fracture-supported coincident lineaments and subsurface structures T2 - Abstracts with Programs - Geological Society of America Y1 - 1999 A1 - Hardcastle, Kenneth C. A1 - Curry, Patrick J. A1 - Williams, Katherine W. A1 - Stephen B Mabee KW - #StaffPubs KW - BEDROCK KW - controls KW - eastern Massachusetts KW - factors KW - fractures KW - ground water KW - Hydrogeology 21 KW - imagery KW - lineaments KW - massachusetts KW - movement KW - New England KW - outcrops KW - Structural geology 16 KW - tectonics KW - tunnels KW - United States AB - As part of the evaluation of the ability of lineaments to map subsurface structures, the coincident lineaments which intersect the tunnel (Curry et al., this volume), were evaluated to isolate those lineaments considered to be "fracture-supported". By definition, fracture-supported coincident lineaments are those which parallel nearby surface fracture sets, mapped faults, lithologic contacts, and/or primary ductile structures; features which may be influential to subsurface groundwater flow. Of the 37 coincident lineaments delineated on the three scales of imagery studied, approximately 70% are considered to be fracture-supported: 9 of the 13 on the 1:58,000 scale images, 10 of 14 on the 1:80,000, and 8 of 10 on the 1:250,000. However, the general lack of surface exposure precludes high confidence in the assignment of fracture-supported status to most lineaments. Large areas devoid of outcrops necessitated extrapolation of regional, surface fracture patterns (domains) to help define some fracture-supported coincident lineaments. There are two occurrences where fracture-supported coincident lineaments from all three scales overlap and are parallel. One occurrence successfully maps the zone of greatest fracture density and highest groundwater inflow (>560 l/min). The other occurrence maps an area of high fracture density and significant subsurface flow (95 l/min). In addition, one other high flow zone (>190 l/min) is mapped by a fracture-supported coincident lineament from the 1:80,000 scale imagery. However, many subsurface fractures and flow zones (<75 l/min) are not mapped by the coincident lineaments regardless of whether or not they are fracture-supported. When considering all fracture-supported coincident lineaments and parallel subsurface structures, the median flow (13,600 l/day) for the mapped structures is greater than the unmapped structures (6,800 liters/day). However, this difference is only significant at the 60% confidence level.Although the tunnel sections with the greatest fracture density and highest groundwater inflows are successfully mapped by fracture supported coincident lineaments, not all water-bearing zones are delineated. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 31 SN - 00167592 IS - 77 N1 - Accession Number: 2001-037344; Conference Name: Geological Society of America, 1999 annual meeting; Denver, CO, United States; Conference Date: 19991025; Language: English; Coden: GAAPBC; Collation: 1; Collation: 348; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200111; Monograph Title: Geological Society of America, 1999 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Factors influencing groundwater inflows in a newly constructed cross-strike tunnel, eastern Massachusetts; 4, Occurrence and characterization of groundwater inflows T2 - Abstracts with Programs - Geological Society of America Y1 - 1999 A1 - Williams, Katherine W. A1 - Stephen B Mabee A1 - Hardcastle, Kenneth C. A1 - Curry, Patrick J. KW - #StaffPubs KW - BEDROCK KW - boreholes KW - characterization KW - design KW - discharge KW - eastern Massachusetts KW - flows KW - fractures KW - Framingham Quadrangle KW - ground water KW - Hydrogeology 21 KW - massachusetts KW - movement KW - Natik Quadrangle KW - occurrence KW - outcrops KW - surface water KW - topography KW - tunnels KW - United States AB - All occurrences of groundwater inflows in a 9 km long, 5-m diameter section of tunnel, 70 to 90 m below grade, were compared with subsurface fracture density, bedrock topography, surface topography, type of surficial deposits, proximity to surface water bodies, and the geographic distribution (domains; Mabee et al., this volume) of surface and subsurface fractures. Subsurface fracture density was calculated for the 320 fractures (through-going fractures) that intersect the entire circumference of the tunnel. Bedrock topography was determined using bore hole data collected during the design phase of the tunnel project. Surface topography is from 1:25,000 scale topographic maps and surficial geology is based on maps of the Framingham and Natick Quadrangles. Seven surface water bodies, primarily brooks and rivers, overlie the tunnel. Five surface fracture domains are based on 1513 fracture measurements collected from 21 outcrops within 3 km of the tunnel. In the tunnel, 413 fractures (all fractures, dips>45 degrees ) comprise seven subsurface fracture domains. High groundwater inflows generally correlate with areas of high subsurface fracture density and where four or more subsurface fracture domains overlap. In addition, high groundwater inflows are also generally located near surface water bodies and below permeable surficial deposits and topographic depressions, especially those with corresponding lows in the bedrock surface. Moreover, subsurface structures which correlate with prominent surface fracture domains produce the highest volume of groundwater inflow. However, not all tunnel sections exhibiting high fracture density and overlapping fracture domains exhibit high groundwater inflows. Also, there is no correlation between areas where two or more surface fracture domains overlap and the volume of groundwater discharging to the tunnel. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 31 SN - 00167592 IS - 77 N1 - Accession Number: 2001-037345; Conference Name: Geological Society of America, 1999 annual meeting; Denver, CO, United States; Conference Date: 19991025; Language: English; Coden: GAAPBC; Collation: 1; Collation: 348; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200111; Monograph Title: Geological Society of America, 1999 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Factors influencing groundwater inflows in a newly constructed cross-strike tunnel, eastern Massachusetts; 1, Lineaments and subsurface structures T2 - Abstracts with Programs - Geological Society of America Y1 - 1999 A1 - Curry, Patrick J. A1 - Hardcastle, Kenneth C. A1 - Stephen B Mabee A1 - Williams, Katherine W. KW - #StaffPubs KW - BEDROCK KW - eastern Massachusetts KW - fractures KW - geophysical surveys KW - ground water KW - Hydrogeology 21 KW - lineaments KW - massachusetts KW - metamorphic rocks KW - movement KW - New England KW - remote sensing KW - SLAR KW - strike KW - surveys KW - tectonics KW - tunnels KW - United States AB - Lineaments derived from three platforms; 1:250,000 Side-Looking Airborne Radar (SLAR) images, 1:58,000 Color Infrared (CIR) and 1:80,000 Black and White aerial photographs (BW), were compared to water bearing structures (n = 99) within a 9 km, 70 to 90 meter deep, east-west tunnel being constructed in eastern Massachusetts. Lineaments were drawn by three observers during two independent trials to produce 18 sets of lineaments (n = 9137) covering approximately 1,000 km (super 2) centered over the tunnel. All lineaments for each platform were compared. Three or more overlapping lineaments (azimuths within 5 degrees and within 1 mm at the scale of the imagery) define a single coincident lineament. This analysis generated three sets of coincident lineaments (n = 794), of these 37 cross the tunnel. Buffers were placed around the coincident lineaments at a distance of 1 mm from the center of the lineament at the scale of the platform (e.g. 250 m for the SLAR image). The Mann-Whitney U test was used to determine if the median flow from all tunnel structures which underlie the lineament buffer zones is significantly greater than that of all structures outside of the buffer zones. Results indicate that median flow (11,000 l/day) from structures located within the buffer zones of the BW are significantly greater at the 90% confidence level than the median flow (5,500 l/day) of structures located outside the buffer zones. No significant differences in flow were found for the other two platforms. Subsurface structures that parallel coincident lineaments (all platforms) and occur within the buffer zones have higher median flow (10,500 l/day) than those structures outside the buffer zones (6,600 l/day). However, this difference is significant at the 70% confidence level. These results suggest that, in some instances, a thorough lineament analysis can predict water-bearing subsurface structures in poorly exposed, glaciated, metamorphic terrain that has a high degree of suburban development. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 31 SN - 00167592 IS - 77 N1 - Accession Number: 2001-037333; Conference Name: Geological Society of America, 1999 annual meeting; Denver, CO, United States; Conference Date: 19991025; Language: English; Coden: GAAPBC; Collation: 2; Collation: 347-348; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200111; Monograph Title: Geological Society of America, 1999 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Factors influencing groundwater inflows in a newly constructed cross-strike tunnel, eastern Massachusetts; 3, Surface vs. subsurface fracture characteristics T2 - Abstracts with Programs - Geological Society of America Y1 - 1999 A1 - Stephen B Mabee A1 - Williams, Katherine W. A1 - Curry, Patrick J. A1 - Hardcastle, Kenneth C. KW - #StaffPubs KW - BEDROCK KW - controls KW - eastern Massachusetts KW - factors KW - fractures KW - ground water KW - Hydrogeology 21 KW - massachusetts KW - measurement KW - movement KW - New England KW - outcrops KW - spatial distribution KW - tunnels KW - United States AB - Major fracture sets (dip >45 degrees ), their geographic distributions (domains), and their characteristics (spacing, trace length, and planarity) were measured in surface outcrops and in a 9 km section of the tunnel (Curry et al., this volume) to determine how well fracture data collected at widely-spaced surface exposures can be extrapolated to a depth of 70 to 90 meters. For the surface fracture data set, fracture sets and domains were determined from 1513 measurements collected at 21 outcrops located within 3 km of the trace of the tunnel. Spacing, trace length, and planarity were determined from scanline measurements (n = 899). For the tunnel data set, 413 fracture measurements were made to determine major sets and domains and a smaller subset (n = 156) was used to estimate fracture characteristics.Five fracture sets (14, 38, 86, 117, and 171) were identified in the outcrops and seven sets (13, 29, 41, 62, 132, 159, and 175) in the tunnel. The 14 and 171 sets correspond well with the 13 and 175 sets in the tunnel. The 38 set observed at the surface includes parts of the 29 and 41 sets in the tunnel. The 86 set does occur in the tunnel but is undersampled because it is aligned with the tunnel. The 62 and 159 sets occur in the tunnel but are not seen at the surface. Although large areas are devoid of outcrops, comparison of surface and subsurface fracture domains indicates that only the 14 and 171 sets show a reasonable overlap with the 13 and 175 domains in the tunnel. These latter sets are the fractures generating most of the groundwater inflow into the tunnel. Median fracture spacing and trace lengths for the 13 and 175 sets in the tunnel are significantly wider and longer than the corresponding 14 and 171 sets at the surface. Fracture planarities showed no significant differences between any of the surface and subsurface fracture sets. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 31 SN - 00167592 IS - 77 N1 - Accession Number: 2001-037340; Conference Name: Geological Society of America, 1999 annual meeting; Denver, CO, United States; Conference Date: 19991025; Language: English; Coden: GAAPBC; Collation: 1; Collation: 348; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200111; Monograph Title: Geological Society of America, 1999 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Factors influencing groundwater inflows in a newly constructed cross-strike tunnel, eastern Massachusetts; 5, Geochemical interpretation of groundwater inflows T2 - Abstracts with Programs - Geological Society of America Y1 - 1999 A1 - Weaver, Rebecca A. A1 - Stephen B Mabee A1 - Williams, Katherine W. A1 - Curry, Patrick J. KW - #StaffPubs KW - anions KW - BEDROCK KW - cations KW - classification KW - discharge KW - eastern Massachusetts KW - fault zones KW - faults KW - geochemistry KW - ground water KW - hydraulic conductivity KW - hydrochemistry KW - Hydrogeology 21 KW - Isotope geochemistry 02D KW - isotope ratios KW - isotopes KW - massachusetts KW - movement KW - New England KW - nitrate ion KW - O-18/O-16 KW - oxygen KW - samples KW - stable isotopes KW - surface water KW - tunnels KW - United States AB - Samples of ground and surface waters in and above the tunnel (Curry et al., this volume) were collected to characterize the chemistry of groundwater discharging from fractures and faults. Forty-two water samples were collected: 32 along a transect of the tunnel and 10 from surface waters above the trace of the tunnel. All samples were analyzed for major anions and cations, and delta (super 18) O. Analysis of the anion/cation data indicated that these waters are dominated by sulfate+chloride and calcium+magnesium. However, five sub-classifications can be discerned based on the relative concentrations of ions in the samples. The five sub-classifications are Cl > HCO (sub 3) > SO (sub 4) > NO (sub 3) :Ca > Na+K > Mg (15 samples), Cl > HCO (sub 3) > SO (sub 4) > NO (sub 3) :Na+K > Ca > Mg (7 samples), Cl > HCO (sub 3) > SO (sub 4) > NO (sub 3) :Ca > Mg > Na+K (6 samples), Cl > SO (sub 4) > HCO (sub 3) > NO (sub 3) :Na+K > Ca > Mg (3 samples), and HCO (sub 3) > Cl > SO (sub 4) > NO (sub 3) :Ca > Na+K > Mg (2 samples). Results from statistical analyses indicate that alkalinity, calcium, sodium and potassium do vary as a function of bedrock type and that these differences are significant at the 95% confidence level.In addition, preliminary oxygen isotope data indicate that two large, discrete water producing fault zones located in the eastern part of the tunnel are isotopically enriched (average delta (super 18) O = -7.75) relative to other water producing features in the tunnel (average delta (super 18) O = -8.96). The delta (super 18) O values obtained from all surface water bodies located above the tunnel average -7.56 whereas those values in surface ponds immediately above the fault zones average -6.71. Nitrate levels also show elevated levels in two water producing fault zones (>10 mg/L for some samples) and may result from accidental contamination during sampling, the use of explosives at discrete locations in the tunnel, or from leaking septic systems. The results of the oxygen isotope and nitrate analyses also suggest that some of the fault zones in the tunnel may have a rapid and direct hydraulic connection to the surface. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 31 SN - 00167592 IS - 77 N1 - Accession Number: 2001-037342; Conference Name: Geological Society of America, 1999 annual meeting; Denver, CO, United States; Conference Date: 19991025; Language: English; Coden: GAAPBC; Collation: 1; Collation: 348; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200111; Monograph Title: Geological Society of America, 1999 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Field mapping and fracture characterization techniques predict groundwater preferential flow paths in fractured bedrock aquifers, Nashoba Terrane, MA T2 - AGU Fall Conference, 2005 Y1 - 2005 A1 - Alex K Manda A1 - Stephen B Mabee A1 - Hubbs, S. A. KW - #StaffPubs KW - aquifers KW - BEDROCK KW - characterization KW - fractured materials KW - fractures KW - ground water KW - Hydrogeology 21 KW - mapping KW - massachusetts KW - Middlesex County Massachusetts KW - movement KW - Nashoba terrane KW - patterns KW - preferential flow KW - recharge KW - reservoir properties KW - substrates KW - United States AB - A study examining the relationship between fracture characteristics and groundwater was undertaken in the crystalline Nashoba Terrane of eastern Massachusetts. The Nashoba Terrane, a fault-bounded, highly deformed sliver of Paleozoic igneous and metamorphic rocks, covers an area of 600 sq km about 50 km northwest of Boston. Increasing industrial development coupled with population growth place significant pressure on developers to provide sufficient potable water for the population. To aid water development and management, this study examined fracture characteristics at regional, quadrangle and wellfield scales. The regional-scale work involved recording over 4000 structural measurements from 80 outcrops in the terrane. Fracture information recorded at each data station included strike and dip, trace length, spacing, termination, and fracture type. Preliminary results show that hydrostructural domains can be defined from combinations of fracture characterization and rock types. These domains are used to conceptualize general groundwater flow patterns in the subsurface: steeply dipping fractures, such as partings parallel to foliation enhance recharge potential and impose strong flow anisotropy. A different character is observed if steeply dipping joints intersect sheeting joints. In this instance, both recharge and lateral flow will be enhanced and flow anisotropy will be reduced. The distribution and intensity of particular fracture sets varies as a function of rock type, proximity to major features and local stress states. Partings parallel to foliation are prevalent in gneissic rocks whereas sheeting joints are more common in igneous rocks. Common joints are the most prevalent fractures, present in all rock types across the entire terrane. Quadrangle and wellfield scale data can be used to validate the regional-scale conceptual models. A comprehensive well-yield database was created to test the proposed models. Over 500 water wells in the terrane were evaluated to determine regions with high and low yield. The findings were evaluated in terms of location with respect to newly defined hydrostructural domain maps at both regional and quadrangle scales. Application of these hydrostructural domains in field studies can be useful not only in characterizing fracture intensity and distribution, but can shed more light on the potential of intersecting subsurface zones that could be exploited for economic gain. JF - AGU Fall Conference, 2005 PB - American Geophysical Union : Washington, DC, United States CY - United States VL - 86 SN - 00963941 IS - 52, Suppl.52, Suppl. N1 - Accession Number: 2009-053313; Conference Name: American Geophysical Union 2005 fall meeting; San Francisco, CA, United States; Conference Date: 20051205; Language: English; Coordinates: N420800N424400W0710200W0715300; Coden: EOSTAJ; Collation: -1; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200930; Monograph Title: AGU 2005 fall meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Eos, Transactions, American Geophysical Union ER - TY - Generic T1 - Foraminifera ecology on the continental shelf, Merrimack Embayment, Gulf of Maine, New England T2 - Abstracts with Programs - Geological Society of America Y1 - 2010 A1 - Steven A Nathan A1 - Leckie, R. Mark A1 - Stephen B Mabee KW - #StaffPubs KW - applications KW - Atlantic Ocean KW - benthic taxa KW - Cenozoic KW - cluster analysis KW - deltaic environment KW - Economic geology, geology of nonmetal deposits 28A KW - Foraminifera KW - gravel deposits KW - Gulf of Maine KW - Invertebrata KW - Maine KW - marine environment KW - marine sediments KW - massachusetts KW - Merrimack River valley KW - microfossils KW - mining KW - North Atlantic KW - paleoecology KW - paleogeography KW - Pleistocene KW - Protista KW - Quaternary KW - Quaternary geology 24 KW - sand deposits KW - sea-level changes KW - sediments KW - shelf environment KW - species diversity KW - statistical analysis KW - United States KW - upper Pleistocene AB - During the late Pleistocene the Merrimack River paleodelta formed as post-glacial rebound produced a local low stand in sea level. Drowned as sea level rose, the paleodelta is now being reworked by a variety of processes. This study uses benthic foraminifera as a biotic and environmental proxy to study the sand and gravel resources of the paleodelta. Nineteen sediment samples were collected from the paleodelta along two east-west transects east of the Merrimack River. From these samples nearly 6000 benthic foraminifera, representing 62 species, were collected and identified. Although dissolution compromised the preservation of calcite tests within six samples, the resulting data is robust and allows for numerous conclusions to be drawn. Specifically, benthic foraminifera become more common distally and specific species inhabit specific areas of the paleodelta. Distribution patterns of some species have changed significantly since the late 1940s, with some species migrating landward, others, seaward. Distributions of some taxa differ significantly between the two transects, both in the present day and from the past. These differences may point to the influence of, and changes in, the Merrimack River outflow upon water column nutrient delivery, productivity and food availability over the past 60 years. Species diversity and evenness peak at the delta break, coincident with low species dominance at 50 meters water depth. Q-mode cluster analyses show three distinct assemblages, "shallow" (< or =30 meters water depth), "deep" (> or =40 meters), and "delta edge" (50 meters). There is no apparent correlation between foraminiferal distributions and deltaic bedforms, and in turn, sediment type. This implies that foraminiferal distributions are controlled by other environmental variables such as food. In summary, benthic foraminiferal assemblage analyses complement geophysical techniques. Benthic foraminifera can also help assess the marine impact of, e.g., mining sediment resources, watershed development, pollution, rising sea level, and increased fishing. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 42 SN - 00167592 UR - https://gsa.confex.com/gsa/2010NE/finalprogram/abstract_170108.htm IS - 11 N1 - Accession Number: 2010-092674; Conference Name: Geological Society of America, Northeastern Section, 45th annual meeting Geological Society of America, Southeastern Section, 59th annual meeting; Baltimore, MD, United States; Conference Date: 20100314; Language: English; Coordinates: N423000N430000W0703000W0705000; Coden: GAAPBC; Collation: 1; Collation: 82; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201049; Monograph Title: Geological Society of America, Northeastern Section, 45th annual meeting; Geological Society of America, Southeastern Section, 59th annual meeting; joint meeting, abstracts volume; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Fracture characterization maps; a new type of geologic map for hydrogeologic applications T2 - Abstracts with Programs - Geological Society of America Y1 - 2005 A1 - Stephen B Mabee A1 - Joseph P Kopera KW - #StaffPubs KW - applications KW - aquifers KW - BEDROCK KW - characterization KW - classification KW - crystalline rocks KW - exploration KW - fractures KW - ground water KW - hydrodynamics KW - Hydrogeology 21 KW - mapping KW - movement KW - overburden KW - permeability KW - potentiometric surface KW - spatial distribution KW - surficial aquifers KW - thickness KW - water wells KW - water yield AB - Integration of a wide array of structural data with well-field hydrologic testing is increasingly recognized as a critical step in understanding groundwater flow behavior and recharge in crystalline bedrock aquifers (Lyford et al., 2003, Walsh and Lyford, 2002). As part of its rejuvenated mapping program, The Massachusetts Office of the State Geologist has been producing fracture characterization maps as a value-added accompaniment to traditional 1:24:000-scale bedrock mapping. Fracture characterization maps reclassify bedrock into domains of varying hydrologic significance, by combining rock properties (foliation steepness and development, partings, sheeting development, etc...) and type of overburden (permeable vs. non-permeable). The goal of these maps is to better understand preferential flow directions in the bedrock and the potential hydraulic connections between surficial and bedrock aquifers. Each fracture characterization map contains several summary panels, including standard geologic map bases overlain by typical rose diagrams and stereonets displaying fracture domains and trajectories, sheeting distribution, foliation trajectories, bedrock elevations, generalized piezometric surface configuration, and overburden type and thickness with separations into permeability class. A GIS well database is also included, showing well distribution, yield, bedrock elevation, and "hot-linked" well log images. All maps and raw data are made available to the public in paper, digital (PDF) or GIS format. We believe this approach will provide hydrologists and consultants with basic framework data that will expedite and improve the planning of subsurface investigations, construction activities, and groundwater exploration. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 37 SN - 00167592 UR - https://gsa.confex.com/gsa/2005AM/finalprogram/abstract_94576.htm IS - 77 N1 - Accession Number: 2006-039166; Conference Name: Geological Society of America, 2005 annual meeting; Salt Lake City, UT, United States; Conference Date: 20051016; Language: English; Coden: GAAPBC; Collation: 1; Collation: 145; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200612; Monograph Title: Geological Society of America, 2005 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Fracture characterization of crystalline bedrock for groundwater investigations; an example from the Marlborough Quadrangle, Massachusetts T2 - Abstracts with Programs - Geological Society of America Y1 - 2004 A1 - Scott A Salamoff A1 - Stephen B Mabee A1 - Joseph P Kopera A1 - Donald U Wise KW - #StaffPubs KW - aquifers KW - Assabet River Fault KW - BEDROCK KW - characterization KW - controls KW - crystalline rocks KW - fractured materials KW - fractures KW - geographic information systems KW - ground water KW - Hydrogeology 21 KW - hydrology KW - information systems KW - joints KW - Marlborough Quadrangle KW - massachusetts KW - Middlesex County Massachusetts KW - permeability KW - preferential flow KW - recharge KW - style KW - testing KW - theoretical models KW - United States AB - Integration of a wide array of structural data with well-field hydrologic testing is increasingly recognized as a critical step in understanding groundwater flow behavior and recharge in crystalline bedrock aquifers (Lyford et al., 2003, Walsh and Lyford, 2002). The Marlborough Quadrangle, about 40 km west of Boston, was selected as a test case of how a state geological survey can most effectively and efficiently collect and present such data in order to better constrain conceptual models of groundwater flow in general and to be of maximum use for hydrologists and consultants working on specific local problems. In this study, 3200 structural measurements were taken by a two-person team over a nine-week period at 68 stations distributed throughout the quadrangle and keyed into a GIS database. Specialized data sheets allowed efficient recording and digitization of orientations, lengths, spacing and mineralization, and separation of various classes of joints and veins. Fault data also included motion direction and sense. Summary maps in GIS format include standard geologic map bases overlain by typical rose diagrams and stereograms and maps such as fracture domains and trajectories, sheeting distribution, foliation trajectories, bedrock elevations, generalized piezometric surface configuration, and overburden type and thickness with separations into permeability class. Geology of the quadrangle can be separated into three zones: (a) north of the Assabet River Fault (ARF), (b) the area between the ARF and 1.5 km-wide Bloody Bluff Fault Zone (BBFZ), and (c) south of the BBFZ. Generalized foliations in the zones are: (a) 215, 50N, (b) 240, 65N, and (c) 270, 45N. Two pervasive, steeply-dipping (>60 degrees ) fracture sets occur throughout the quadrangle: an older 150 degrees set that includes sulfide-bearing veins and fracture surfaces along the ARF and a 015 degrees set of largely unmineralized common joints, macrojoints (>3 m length) and joint zones (av. 1.2 m width). Sheeting and unloading joints are generally coincident with shallow dipping foliation in (c) but cross-cut foliation in (a) and (b). We believe this approach will provide hydrologists and consultants with basic framework data that will expedite and improve the planning of subsurface investigations, construction activities and groundwater exploration. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 36 SN - 00167592 UR - https://gsa.confex.com/gsa/2004NE/finalprogram/abstract_70321.htm IS - 22 N1 - Accession Number: 2005-077195; Conference Name: Geological Society of America, Northeastern Section, 38th annual meeting; Geological Society of America, Southeastern Section, 53rd annual meeting; Washington, DC, United States; Conference Date: 20040325; Language: English; Coordinates: N421800N421800W0713000W0713000; Coden: GAAPBC; Collation: 1; Collation: 113; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200524; Monograph Title: Geological Society of America, Northeastern Section, 38th annual meeting; Geological Society of America, Southeastern Section, 53rd annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Fracture characterization; valuable inputs for modeling groundwater flow in fractured bedrock T2 - Abstracts with Programs - Geological Society of America Y1 - 1996 A1 - Stephen B Mabee A1 - Hardcastle, Kenneth C. KW - #StaffPubs KW - BEDROCK KW - boreholes KW - California KW - discontinuities KW - experimental studies KW - field studies KW - fractured materials KW - fractures KW - ground water KW - Hydrogeology 21 KW - Madera County California KW - models KW - movement KW - observation wells KW - Raymond California KW - site exploration KW - spatial distribution KW - transmissivity KW - United States KW - wells JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 28 SN - 00167592 IS - 33 N1 - Accession Number: 1996-065028; Conference Name: Geological Society of America, Northeastern Section, 31st annual meeting; Buffalo, NY, United States; Conference Date: 19960321; Language: English; Coordinates: N364500N374500W1190100W1203800; Coden: GAAPBC; Collation: 1; Collation: 77; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 199620; Monograph Title: Geological Society of America, Northeastern Section, 31st annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Fracture patterns across two terrane boundaries in eastern Massachusetts; implications for regional groundwater flow and recharge T2 - Abstracts with Programs - Geological Society of America Y1 - 2006 A1 - Stephen B Mabee A1 - Joseph P Kopera KW - #StaffPubs KW - Avalon Zone KW - BEDROCK KW - eastern Massachusetts KW - faults KW - foliation KW - fractures KW - ground water KW - Hydrogeology 21 KW - joints KW - massachusetts KW - Merrimack Belt KW - movement KW - observations KW - patterns KW - properties KW - recharge KW - shear zones KW - style KW - terranes KW - United States AB - The integration of structural data and field-based observations is becoming increasingly critical in understanding groundwater flow behavior and recharge potential. Over the past 3 years, the Office of the Massachusetts State Geologist (OMSG) has collected 8225 fracture measurements from 187 stations across 3 adjacent quadrangles as part of its bedrock geologic mapping program. These data provide a north-south transect across the Nashoba Terrane and its boundaries with the Merrimack Belt and Avalon Terranes in eastern Massachusetts. Areas with similar fracture patterns can be grouped into "hydrostructural domains" with distinct hydrogeologic properties. Within the above transect, hydrostructural domains were observed to closely correspond with bedrock lithology and ductile structure, and therefore, tectonic history. Such domains are commonly bounded by faults or intrusive contacts. Common features observed across all domains include a NE-striking regional foliation with corresponding NW-striking, steeply-dipping cross-joints. Strongly layered metasedimentary and metavolcanic rocks of the Merrimack Belt and the Marlborough Formation in the Nashoba Terrane tend to have the most pervasive and closely-spaced foliation-parallel fractures (FPF). Foliation intensity and FPF generally increases towards shear zones and regional fault systems, especially within granites and gneisses. The moderate to steeply dipping, well-developed FPF in these rocks provides a potentially excellent conduit for vertical recharge and a strong NE-trending regional anistropy that may control groundwater flow. Granitoidal rocks have very consistent NS-EW orthogonal networks of vertical fractures and subhorizontal sheeting joints, providing excellent potential for vertical recharge and near-surface lateral flow. Features such as small brittle faults, fracture zones, fold axes, and fracture sets distinct to each domain may dominate local groundwater flow and recharge. Abstract 116563 modified by 72.70.224.253 on 7-12-2006 JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 38 SN - 00167592 UR - https://gsa.confex.com/gsa/2006AM/finalprogram/abstract_116563.htm IS - 77 N1 - Accession Number: 2010-054322; Conference Name: Geological Society of America, 2006 annual meeting; Philadelphia, PA, United States; Conference Date: 20061022; Language: English; Coden: GAAPBC; Collation: 1; Collation: 434; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201030; Monograph Title: Geological Society of America, 2006 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Geochemistry of gneisses and amphibolites in the Uchee Belt of western Georgia and eastern Alabama; an ACRES progress report T2 - Abstracts with Programs - Geological Society of America Y1 - 2000 A1 - Joseph P Kopera A1 - Nicholas, Brian A1 - Todd, Dave A1 - Davison, Jeff A1 - Hanley, Tom A1 - Kar, Aditya A1 - La Tour, Timothy E. A1 - Edwards, Tonya KW - #StaffPubs KW - Alabama KW - amphibolite KW - chemical composition KW - Columbus Georgia KW - dikes KW - Georgia KW - gneisses KW - Igneous and metamorphic petrology 05A KW - inclusions KW - intrusions KW - metamorphic rocks KW - Muscogee County Georgia KW - Uchee Belt KW - United States KW - xenoliths AB - Undergraduate students, high school teachers, and university faculty representing ACRES (Atlanta Consortium for Research in Earth Sciences) studied lineated gneiss (LG) exposed at Flat Rock Park (FRP) and vicinity in Columbus, GA, and Motts gneiss (MG) in eastern Alabama. The LG and MG are mineralogically and geochemically granitoidal lineated orthogneisses. They contain deformed mafic xenoliths, as well as aplitic, granitic and pegmatoidal dikes that cut the dominant lineation. Based on chemical analyses, the LG from FRP and the MG plot as granite on the IUGS diagrams and the Le Bas diagram. Similarity in incompatible trace element ratios (e.g., Zr/Nb) and highly evolved characteristics of aplite with respect to the host gneisses, indicate there is probably a genetic link between the MG and the FRP LG. These rocks are chemically distinct from other nearby felsic gneiss. Phenix City gneiss amphibolites from Lindsey Creek and North Highland Mills dam in Columbus were also analyzed for major and trace elements. These amphibolites are low K tholeiitic rocks with an island arc affinity and are similar to rocks from the area that have already been analyzed. The amphibolites show a wide range of fractionation (41 to 62 percent SiO (sub 2) ). Consistency in incompatible element ratios over a wide range of fractionation of some of the samples show a probable genetic relationship among the various amphibolites of Lindsey Creek. Future work should involve more extensive collecting and analysis of both felsic rocks and amphibolites in the Uchee belt. More time should also be spent describing the thin sections of the existing collection and comparing the REE patterns for the FRP, MG and other felsic rocks in the Uchee belt. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 32 SN - 00167592 IS - 22 N1 - Accession Number: 2002-039126; Conference Name: Geological Society of America, Southeastern Section, 49th annual meeting; Charleston, SC, United States; Conference Date: 20000323; Language: English; Coordinates: N322800N322800W0845900W0845900; Coden: GAAPBC; Collation: 1; Collation: 31; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200214; Monograph Title: Geological Society of America, Southeastern Section, 49th annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Granite as a geothermal resource in the Northeast T2 - Abstracts with Programs - Geological Society of America Y1 - 2012 A1 - John Michael Rhodes A1 - Koteas, G. Christopher A1 - Stephen B Mabee KW - #StaffPubs KW - Cammenallis Pluton KW - Cornwall England KW - Eastern U.S. KW - Economic geology, geology of energy sources 29A KW - energy sources KW - England KW - Europe KW - geothermal energy KW - geothermal exploration KW - granites KW - Great Britain KW - heat flow KW - hydrothermal conditions KW - igneous rocks KW - intrusions KW - Northeastern U.S. KW - plutonic rocks KW - plutons KW - thermal conductivity KW - United Kingdom KW - United States KW - Western Europe AB - In the absence of volcano-derived hydrothermal activity and high heat flow, granitic plutons provide an alternative geothermal resource from which heat may be usefully extracted. Compared with other crustal rocks, granites contain higher concentrations of the heat producing elements (K, U, Th). Additionally, they are more homogeneous and have simpler fracture systems than surrounding country rock, allowing for stimulation through hydro-fracking of large (>1 km (super 3) ) geothermal reservoirs. However, not all granites are created equal! Those with heat production > 5 mu W/m (super 3) , or with deep batholithic roots, are the most promising. Estimated temperatures at a given depth are related to the heat production, thickness and thermal conductivity of the granite. For example, the Carnmenellis Pluton in Cornwall, England (which will be drilled in 2012) is estimated to have temperatures in excess of 170 degrees C at a depth of 5 km, which is sufficient for co-production of electricity and hot water for heating. More importantly, granite bodies that are buried beneath thick sequences of thermally insulating sediments are also potential geothermal targets. Most successful examples to date include the Soultz sur Foret project in France, with temperatures of 200 degrees C at a depth of 5 km. (and which is currently producing electricity), Innamincka, Australia, with temperatures of 250 degrees C at a depth of 4 km. (which will be producing in 2012), and the seismically ill-fated project in Basel, Switzerland. Surely, if such projects involving the geothermal potential of granites, can succeed elsewhere, they can succeed here in the granite-rich Northeast? The geothermal potential of the Conway Granite, NH has long been recognized. Other possibilities include the Fitchburg Pluton, MA, and granites buried beneath the Carboniferous sediments of the Narragansett Basin and the Triassic sediments of the Connecticut River valley. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 44 SN - 00167592 UR - https://gsa.confex.com/gsa/2012NE/finalprogram/abstract_200603.htm IS - 22 N1 - Accession Number: 2012-090078; Conference Name: Geological Society of America, Northeastern Section, 47th annual meeting; Hartford, CT, United States; Conference Date: 20120318; Language: English; Coden: GAAPBC; Collation: 1; Collation: 76; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201247; Monograph Title: Geological Society of America, Northeastern Section, 47th annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Ground truth? Relationship between lineaments and bedrock fabric T2 - Abstracts with Programs - Geological Society of America Y1 - 1989 A1 - Stephen B Mabee A1 - Hardcastle, Kenneth C. A1 - Donald U Wise KW - #StaffPubs KW - aerial photography KW - BEDROCK KW - fabric KW - faults KW - fractures KW - granites KW - ground truth KW - igneous rocks KW - joints KW - lineaments KW - Maine KW - orientation KW - pegmatite KW - plutonic rocks KW - quartz veins KW - SLAR KW - structural analysis KW - Structural geology KW - Structural geology 16 KW - United States KW - veins JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 21 SN - 00167592 IS - 66 N1 - Accession Number: 1991-043915; Conference Name: Geological Society of America, 1989 annual meeting; St. Louis, MO, United States; Conference Date: 19891106; Language: English; Coden: GAAPBC; Collation: 1; Collation: A68; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 1991; Monograph Title: Geological Society of America, 1989 annual meeting; Monograph Author(s): Dymek, Robert F. [chairperson]; Shelton, Kevin L. [chairperson]; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Guiding principles for use of digital technology in geologic data collection and distribution T2 - Abstracts with Programs - Geological Society of America Y1 - 2014 A1 - Joseph P Kopera A1 - House, P. Kyle A1 - Schmidt, Maxine A1 - Clark, Ryan KW - #StaffPubs KW - data KW - data preservation KW - databases KW - digital KW - digital data KW - digital geologic maps KW - geologic maps KW - GIS KW - migration AB - The past decade has seen a dramatic shift in the public perception of a map as a static paper document to a dynamic digital interface for addressing a specific geographic question. The adoption of digital technology for geologic data collection, compilation, and distribution has many advantages but requires a similar shift in attitudes towards the nature of data and resulting maps themselves to ensure that they remain accessible, viable, and relevant in this new paradigm. We propose a set of guiding principles for the use of digital technology in geologic data and map production: 1.) Utilize dedicated digital data professionals (DDPs): It is unreasonable to expect that geologists maintain expertise in their field and be thoroughly versed in complex and rapidly changing best practices for digital data. Following the recommendations of the National Research Council (2009), DDPs should be embedded in any research endeavor from its inception with geologists being savvy enough in digital technology to maintain productive engagement with DDPs. 2.) Use appropriate technology: Fully digital workflows and field equipment are not appropriate for all projects. Free or open-source software (FOSS) and easily available low-cost hardware (i.e., smartphones) have also met or surpassed the utility of many proprietary technology solutions thus reducing the price and increasing accessibility of data. 3.) Practice good data management: Digital data takes considerable resources and sustained effort to remain viable even shortly after its production. Best practices in data accessibility (data standards, open formats, etc.) and maintenance (refreshing, migration, etc.) in addition to robust metadata creation, through all phases of a project, are unquestionably necessary. 4.) Approach maps and digital data as living dynamic entities: Geologic data is out of date the moment it is published. A primary advantage of digital datasets is their ability to be easily updated, queried, and manipulated in infinite ways. Derivative products for specific applications are in arguably higher demand by end users than the data itself. Geologists must design for flexibility, appropriateness of use, and the persistence of their expert interpretations through development of all possible end products of and updates to the map and dataset. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States VL - 46 SN - 00167592 UR - https://gsa.confex.com/gsa/2014NE/webprogram/Paper236362.html JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Identifying and examining potential geothermal resources in non-traditional regions, examples from the northeastern U.S. T2 - Abstracts with Programs - Geological Society of America Y1 - 2011 A1 - Koteas, G. Christopher A1 - John Michael Rhodes A1 - Stephen B Mabee A1 - Goodhue, Nathaniel A1 - Adams, Sharon A. KW - #StaffPubs KW - Andover Granite KW - Eastern U.S. KW - Economic geology, geology of energy sources 29A KW - exploitation KW - exploration KW - Fall River Granite KW - field studies KW - geochemistry KW - geothermal energy KW - identification KW - mapping KW - massachusetts KW - models KW - Northeastern U.S. KW - overburden KW - resources KW - sampling KW - southeastern Massachusetts KW - spectra KW - structural analysis KW - technology KW - temperature KW - United States KW - whole rock KW - X-ray fluorescence spectra AB - The search for geothermal resources is rapidly expanding into tectonic regions that have not been previously considered to be suitable for exploitation. Many of these regions, such as the northeastern U.S., have never been the site of extensive geophysical investigations and have few deep borehole temperature measurements. Nevertheless, large portions of the northeastern U.S. are underlain by granitic bedrock that may be a productive energy source by applying enhanced geothermal technologies. In the absence of traditional reconnaissance data, we utilize field studies and sampling together with geochemical analysis to develop models of geothermal resources that can be tested against data from deep boreholes. Heat production is calculated from the measured density of the samples, the concentrations of K, U, and Th from whole-rock geochemical analysis via X-ray fluorescence, and established radiogenic heat production values. Models for a particular area can then be generated by calculating depth-specific temperatures using heat production, measured thermal conductivity for each sample, and assumptions related to local stratigraphy and regional heat flow. Mapping and structural extrapolation are used to establish the subsurface characteristics at a study site and are combined with the thermal and chemical characteristics of contact rocks and overburden materials. Two examples of the application of this technique are the Fall River granite at the margin of the Narragansett Basin in southeastern Massachusetts and the Andover Granite in northeastern Massachusetts. Thermal models of the Fall River Pluton indicate average temperatures of 71 degrees C at depths of 4 km and 97 degrees C at 6 km. Average temperatures increase to 107 degrees C and 132 degrees C, respectively, when a 2 km thick sediment package is modeled overlying the granite. The Andover Granite, which is not associated with a sedimentary basin and is in a more structurally complex configuration, yields an average temperature of 74 degrees C at a depth of 4 km and 101 degrees C at 6 km. While this approach to modeling temperature-depth profiles requires some regional heat flow assumptions, the application of mapping and structural analysis with geochemistry and thermal conductivity studies can be an important reconnaissance tool for identifying non-traditional geothermal resources. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 43 SN - 00167592 IS - 55 N1 - Accession Number: 2012-083486; Conference Name: Geological Society of America, 2011 annual meeting; Minneapolis, MN, United States; Conference Date: 20111009; Language: English; Coden: GAAPBC; Collation: 1; Collation: 40; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201244; Monograph Title: Geological Society of America, 2011 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Implications for non-traditional geothermal resources in southern New England; variability in heat potential based on thermal conductivity and geochemistry studies T2 - Abstracts with Programs - Geological Society of America Y1 - 2012 A1 - Koteas, G. Christopher A1 - John Michael Rhodes A1 - Stephen B Mabee A1 - Ryan, Amy A1 - Schmidt, Joe A1 - League, Corey A1 - Goodhue, Nathaniel A1 - Adams, Sharon A. A1 - Gagnon, Teresa K. A1 - Thomas, Margaret A. KW - #StaffPubs KW - chemical composition KW - Connecticut KW - Economic geology, geology of energy sources 29A KW - energy sources KW - geothermal energy KW - geothermal exploration KW - granites KW - heat flow KW - igneous rocks KW - massachusetts KW - models KW - New England KW - plutonic rocks KW - thermal conductivity KW - United States AB - Estimating geothermal potential in southern New England in the absence of borehole heat flow data or geophysical studies has led to a focus on models based on thermal conductivity, geochemistry, and density-based heat production models. Preliminary estimates of geothermal potential generally match borehole-based heat flow data from similar tectonic environments. Nevertheless, microstructural and compositional heterogeneity with depth remain largely unconstrained. The extrapolation of regional structures based on detailed field mapping has helped to improve structural projections adjacent to major basins. However, an additional source of error in models of heat potential-with-depth are thermal conductivity estimates of igneous and meta-igneous rocks throughout Massachusetts (MA) and Connecticut (CT). Over three hundred granitoid localities in MA and CT have been analyzed to date. The southern New England region can be simplified into four major litho-tectonic zones: the Taconic-Berkshire Zone of western MA and northwestern CT, The Bronson Hill Zone associated with the CT River valley, the Nashoba Zone of central MA and eastern CT, and the Milford-Dedham Zone of eastern MA and eastern CT. Granitic rocks adjacent to the CT River valley and the Narragansett Basin vary considerably in thermal conductivity. Granites adjacent to the Narragansett Basin vary from 2.9 to 3.7 W/m * K. Average thermal conductivity values, combined with modeled heat production values, produce temperatures at 3 km depth along the Narragansett Basin that approach 85-115 degrees C. Values of meta-igneous rocks from the margin of the CT River valley in MA and CT vary more considerably in thermal conductivity, from 1.8 to 3.9W/m * K. Modeled heat potentials at 3 km depths along the eastern margin of the CT River valley vary between 74-122 degrees C and appear to be largely related to compositional variation. However, local rock composition is also related to metamorphic grade and fabric development, suggesting that both fabric and composition are first order controls on thermal conductivity. Modeling based on these data set to date suggests that combining thermal conductivity, whole rock geochemistry data, and density measurements can produce accurate reconnaissance estimates of geothermal potential in southern New England. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 44 SN - 00167592 UR - https://gsa.confex.com/gsa/2012NE/finalprogram/abstract_200837.htm IS - 22 N1 - Accession Number: 2012-090079; Conference Name: Geological Society of America, Northeastern Section, 47th annual meeting; Hartford, CT, United States; Conference Date: 20120318; Language: English; Coordinates: N420000N473000W0670000W0733000; Coden: GAAPBC; Collation: 2; Collation: 76-77; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201247; Monograph Title: Geological Society of America, Northeastern Section, 47th annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Implications of diurnal river fluctuations on mass transport in a valley-fill aquifer T2 - Abstracts with Programs - Geological Society of America Y1 - 2006 A1 - Brandon J Fleming A1 - David F Boutt A1 - Stephen B Mabee KW - #StaffPubs KW - aquifers KW - BEDROCK KW - clastic sediments KW - controls KW - diffusion KW - diurnal variations KW - drainage KW - drift KW - Eastern U.S. KW - Environmental geology 22 KW - floods KW - fluctuations KW - geochemical cycle KW - geologic hazards KW - ground water KW - measurement KW - mixing KW - models KW - Northeastern U.S. KW - numerical models KW - nutrients KW - pollution KW - processes KW - pumping KW - quantitative analysis KW - residence time KW - sediments KW - shallow aquifers KW - surface water KW - three-dimensional models KW - tracers KW - transport KW - United States KW - valleys KW - water pollution KW - water resources KW - water wells AB - Aquifers located in isolated stratified drift deposits in the northeastern portion of the US are extremely fragile and important groundwater resources. These aquifers, when restricted to bedrock valleys, are often strongly coupled to significant surface water drainage systems. In northwestern Massachusetts, surface water associated with the Deerfield River watershed is highly regulated by dams to protect against flooding and to generate hydroelectric power. Regular releases of water from these dams cause diurnal fluctuations in river stage. In a previous study performed by the USGS, measurements from two clusters of wells show a significant response to river stage fluctuations in the aquifer. Fluctuations in river stage and resulting changes in head levels in the aquifer cause a switch from a losing to a gaining stream. The flow reversals have implications for mass transport and nutrient cycling within the hyporheic zone. In this paper we investigate the physical hydrologic controls on mass transport in the shallow aquifer. Using a coupled groundwater flow and transport code, we built a quasi three dimensional transient numerical model to approximate the head changes in the aquifer caused by the stage fluctuations in the river. Flow velocities and residence times were estimated in the aquifer for a variety of flow conditions. The mixing process driven by the aquifer head changes were quantified in the proximity of the hyporheic zone and shown to significantly influence both vertical and horizontal flow velocities in a region close to the stream-aquifer boundary. The diurnal river stage changes also appear to influence farfield hydrologic conditions and potentially hydrologically isolate the river and hyporheic zone. To further investigate these mixing processes we applied a mass transport code with conservative tracers to the aquifer. Fluctuation of the river stage combined with the heterogeneous nature of the aquifer creates a pumping mechanism that creates excess mixing within shallow portions of the aquifer. Aquifer dispersivity and molecular diffusion both contribute to the anomalous mixing modeled in the shallow aquifer. Mixing driven by stream stage changes has important implications for nutrient cycling as well as contaminant transport in the shallow aquifer. JF - Abstracts with Programs - Geological Society of America PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 38 SN - 00167592 UR - https://gsa.confex.com/gsa/2006AM/finalprogram/abstract_115285.htm IS - 77 N1 - Accession Number: 2010-061334; Conference Name: Geological Society of America, 2006 annual meeting; Philadelphia, PA, United States; Conference Date: 20061022; Language: English; Coden: GAAPBC; Collation: 1; Collation: 468; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201034; Monograph Title: Geological Society of America, 2006 annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - Improving seismic hazard assessment in New England through the use of surficial geologic maps and expert analysis T2 - Geological Society of America Abstracts with Programs Y1 - 2013 A1 - Becker, Laurence R. A1 - Patriarco, Steven P. A1 - Marvinney, Robert G. A1 - Thomas, Margaret A. A1 - Stephen B Mabee A1 - Fratto, Edward S. KW - #StaffPubs KW - earthquakes KW - Environmental geology KW - geologic hazards KW - maps KW - natural hazards KW - New England KW - risk assessment KW - seismic risk KW - seismic zoning KW - surficial geology KW - surficial geology maps KW - technology KW - United States AB - In New England, earthquakes pose a risk to the built environment. New England state geological surveys partnered with the Northeast States Emergency Consortium to integrate geologic information and GIS analysis for risk communication. Connecticut, Maine, Massachusetts, and Vermont employed surficial geologic maps, deglaciation history, glacial stratigraphy, and professional judgment to reclassify surficial geologic materials into one of the five National Earthquake Hazard Reduction Program (NEHRP) site classifications (A, B, C, D, and E). These new classifications were used in the HAZards U.S. Multi-Hazard (HAZUS-MH) risk assessment application as a substitute for site class value of "D," used in HAZUS-MH throughout New England as a default value. Coding of surficial geologic materials for the five NEHRP site classifications was then compared with classifications using the Wald methodology, a method using slope analysis as a proxy for shear-wave velocity estimates. Comparisons show that coding to site classes using the Wald methodology underestimates categories A (high-velocity shear-wave materials, least relative hazard) and E (lowest-velocity shear-wave materials, greatest relative hazard) when evaluated side by side with coding done with the aid of surficial geologic maps. Geologic maps provide insights into the location of buried low shear wave velocity materials not afforded by the Wald methodology. North of the glacial limit, derangement of drainage resulted in extensive ponding of meltwaters and the subsequent deposition of thick sequences of lacustrine mud. Inundation by the sea immediately following deglaciation in New England resulted in the deposition of spatially extensive and locally thick sequences of glacial marine mud. Surficial geologic maps better capture these circumstances when compared with the Wald methodology. Without the use of surficial geologic maps, significant areas of New England will be incorrectly classified as being more stable than actual site conditions would allow. By employing surficial geologic information, HAZUS-MH earthquake loss estimates are improved, providing local and regional emergency managers with more accurate information for locating and prioritizing. JF - Geological Society of America Abstracts with Programs PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 45 SN - 00167592 UR - https://gsa.confex.com/gsa/2013NE/webprogram/Paper214837.html IS - 11 N1 - Accession Number: 2014-021037; Conference Name: Geological Society of America, Northeastern Section, 48th annual meeting; Bretton Woods, NH, United States; Conference Date: 20130318; Language: English; Coden: GAAPBC; Collation: 2; Collation: 50-51; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 201414; Monograph Title: Geological Society of America, Northeastern Section, 48th annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - Generic T1 - The influence of ductile structure and rheological heterogeneity on brittle structures as exhibited by Avalonian granites in southeastern Massachusetts T2 - Geological Society of America Abstracts with Programs Y1 - 2008 A1 - Joseph P Kopera KW - #StaffPubs KW - acadian KW - alleghenian KW - avalon KW - BEDROCK KW - dikes KW - foliation KW - fracture KW - fracture system KW - fracture trace KW - fractures KW - granite KW - granites KW - Hopkinton KW - joints KW - l-tectonites KW - lineaments KW - lineation KW - Milford KW - Upton AB - The orientation and geographic distribution of joints, veins, and brittle faults show a conspicuous correlation with the heterogeneous distribution of foliation and lineation intensity in Neo-Proterozoic granites and their deformed counterparts in southeastern Massachusetts. Field mapping and stereonet analysis of brittle and ductile structural data collected during 1:24,000-scale geologic mapping of the Milford quadrangle yielded the following general observations, which suggest that the ductile deformational history of this region appears to have strongly influenced the later development of brittle structures in the same rocks:
Email sbmabee @geo.umass.edu
JF - Open-File Report PB - Massachusetts Geological Survey ER - TY - DATA T1 - Geologic Fieldtrip Guidebook database for North America Y1 - 0 KW - educational resources KW - GEOLOGY KW - guidebooks KW - massachusetts PB - American Geolosciences Institute UR - http://guide.georef.org/dbtw-wpd/guidens.htm ER - TY - DATA T1 - Massachusetts DEP Hydrogeologic Information Matrix Y1 - 0 AB -Subsurface and hydrogeologic information
PB - Massachusetts Department of Environmental Protection UR - http://www.mass.gov/dep/water/compliance/hydromat.pdf U1 -Subsurface and hydrogeologic information
ER - TY - DATA T1 - The Massachusetts Geothermal Data Project Y1 - 2013 A1 - John Michael Rhodes A1 - Koteas, G. Christopher A1 - Stephen B Mabee A1 - Ryan, Amy A1 - Isaacson, M. KW - #Geothermal KW - #MGSPubs KW - #Reports KW - #Subsurface KW - Andover Granite KW - aqueous geochemistry KW - Cape Anne granite KW - ECS KW - enhanced geothermal systems KW - Fitchburg granite KW - geothermal KW - granite geochemistry KW - granites KW - heat flow KW - hot dry rock KW - hot springs KW - thermal KW - thermal conductivity KW - thermal transmissivity KW - whole rock geochemistry KW - XRF AB - A series of geothermal maps and datasets for Massachusetts derived from data collected by the MGS for Massachusetts and Connecticut. These data include whole rock geochemistry, rock and soil thermal conductivity, hot spring aqueous geochemistry, and derivative thermal and heatflow modeling. The project includes multiple datasets and products which can be accessed here or via the National Geothermal Data System (http://search.geothermaldata.org/dataset?q=Massachusetts). These datasets and products are: Maps: Comprising MGS Miscellaneous Maps 13-01 through 13-08This database houses almost all geologic maps produced by the USGS, and links to almost all maps published by state geologic surveys, including the MGS.
Searching by placename is currenty disabled, but an interactive web-map interface to the NGMDB can be found here:
http://mrdata.usgs.gov/geology/state/map.html?x=-71.8089194224132&y=42.2562234015901&z=8
It is also recommended you find the name of the USGS 7.5' topographic quadrangle your town is in by looking at the DEP Hydrogeologic Information Matrix, and searching the database for that. It is also very useful to search the USGS Publication Warehouse as well for the quadrangle you want.
PB - United States Geological Survey, Association of American State Geologists UR - http://ngmdb.usgs.gov ER - TY - DATA T1 - USGS Publications Warehouse Y1 - 0 PB - United States Geological Survey UR - http://infotrek.er.usgs.gov/pubs/ U1 -Pubs Warehouse provides access to over 100,000 publications written by USGS scientists over the century-plus history of the bureau
ER - TY - DATA T1 - Well Inventory of the Ayer quadrangle, Massachusetts Y1 - 2006 A1 - Fernandez, M. A1 - Duncan, C. A1 - Stephen B Mabee KW - #MGSPub KW - #Subsurface KW - #WellInventory KW - arsenic KW - Ayer KW - boring KW - Boxborough KW - Devens KW - For Devens KW - Groton KW - groundwater KW - Harvard KW - LITTLETON KW - Shirley KW - subsurface KW - water resources KW - well AB - Well Inventories consist of ESRI ArcView Project files (*.apr), associated ESRI shapefiles and scanned boring logs compiled from several sources. Each *. apr file displays borehole locations, information about the boring itself, and, where available, a scanned image of the boring log. Be sure to read the "README.TXT" file before using this product. JF - Well Inventory PB - Massachusetts Geological Survey ER - TY - DATA T1 - Well inventory of the Hudson quadrangle, Massachusetts Y1 - 2005 A1 - Fernandez, M. A1 - Duncan, C. A1 - Stephen B Mabee KW - #MGSPub KW - #Subsurface KW - #WellInventory KW - Berlin KW - Bolton KW - borings KW - Boxborough KW - Harvard KW - Hudson KW - Malborough KW - Stow KW - water resources KW - wells AB -Well Inventories consist of ESRI ArcView Project files (*.apr), associated ESRI shapefiles and scanned boring logs compiled from several sources. Each *. apr file displays borehole locations, information about the boring itself, and, where available, a scanned image of the boring log. Be sure to read the "README.TXT" file before using this product.
JF - Well Inventory PB - Massachusetts Geological Survey ER - TY - DATA T1 - Well inventory of the Marlborough quadrangle, Massachusetts Y1 - 2004 A1 - Duncan, C. A1 - Stephen B Mabee KW - #MGSPub KW - #Subsurface KW - #WellInventory KW - Ashland KW - Berlin KW - boring KW - Hopkinton KW - Hudson KW - Malborough KW - Marlborough KW - Northborough KW - Southborough KW - subsurface KW - Upton KW - water resources KW - wells KW - Westborough AB -Well Inventories consist of ESRI ArcView Project files (*.apr), associated ESRI shapefiles and scanned boring logs compiled from several sources. Each *. apr file displays borehole locations, information about the boring itself, and, where available, a scanned image of the boring log. Be sure to read the "README.TXT" file before using this product.
JF - Well Inventory PB - Massachusetts Geological Survey ER - TY - DATA T1 - Well Inventory of the Milford quadrangle, Massachusetts Y1 - 2007 A1 - Fernandez, M. A1 - Duncan, C. A1 - Stephen B Mabee KW - #MGSPub KW - #Subsurface KW - #WellInventory KW - Ashland KW - borings KW - groundwater KW - Holliston KW - Hopkinton KW - logs KW - Mendon KW - MGS Publication KW - Milford KW - Northbridge KW - Upton KW - water KW - well KW - Westborough AB - MGS Well inventories are a database of digitized water well data, boring logs, and images of well completion reports for a given quadrangle compiled into an ArcView 3.x project file. Modeled surfaces of static water-level surfaces, depth to bedrock, yield, etc... are also included. PB - Massachusetts Geological Survey ER - TY - DATA T1 - Well Inventory of the Westford quadrangle, Massachusetts Y1 - 2009 A1 - Fernandez, M. KW - #MGSPub KW - #Subsurface KW - #WellInventory KW - Acton KW - borings KW - Boxborough KW - Carlisle KW - Chelmsford KW - Concord KW - Groton KW - groundwater KW - LITTLETON KW - subsurface KW - Tyngsborough KW - wells KW - Westford AB - Well Inventories of selected 7.5' quadrangles consist of ESRI ArcView Project files (*.apr), associated ESRI shapefiles and scanned boring logs compiled from several sources. Each *. apr file displays borehole locations, information about the boring itself, and, where available, a scanned image of the boring log. Be sure to read the "README.TXT" file before using this product. JF - Well Inventory PB - Massachusetts Geological Survey ER - TY - MPCT T1 - The Flow of Time - 500 Million Years of Geohistory in the Connecticut River Valley Y1 - 2000 KW - #ConnecticutValley KW - #EducationalResources KW - #MassGeology KW - #MassGeologyBooks KW - armored mudballs KW - book KW - clay KW - Connecticut Valley KW - dinosaurs KW - field trip guide KW - footprints KW - fossils KW - geologic history KW - glacial lake KW - glaciers KW - hitchcock KW - mesozoic KW - movie KW - mud balls KW - mudballs KW - nNew England KW - site KW - varves KW - video KW - western Massachusetts AB - With animations and a bit of humor, geologist-educator Richard Little takes you through the amazing events of the last 500 million years in the Connecticut River Valley region, and shows you why this is the best place to study geology in the world. Learn about glacial Lake Hitchcock, unique armored mud balls and take a tour of the dinosaur resources of the Amherst College Pratt Museum and Dinosaur State Park, Rocky Hill, CT. This video has been seen by thousands and is in use in classrooms from upper elementary school through college. PB - Earthview LLC SN - 0-9616520-3-9 UR - http://www.earthview.pair.com/publications.html ER - TY - MPCT T1 - The Flow of Time - 500 Million Years of Geohistory in the Connecticut River Valley Y1 - 2000 A1 - Richard D. Little PB - Earthview LLC. UR - http://www.earthview.pair.com/publications.html U1 -45 minute video
ER - TY - MPCT T1 - The Rise and Fall of Lake Hitchcock - New England's Greatest Glacial Lake Y1 - 2000 A1 - Richard D. Little PB - Earthview LLC. UR - http://www.earthview.pair.com/publications.html U1 -45 minute video
ER - TY - MPCT T1 - The Rise and Fall of Lake Hitchcock - New England's Greatest Glacial Lake Y1 - 2000 KW - #ConnecticutValley KW - #EducationalResources KW - #MassGeology KW - #MassGeologyBooks KW - book KW - clay KW - Connecticut Valley KW - field trip guide KW - geologic history KW - glaciers KW - lake hitchcock KW - movie KW - nNew England KW - site KW - video KW - western Massachusetts AB - Prof. Richard Little hosts this 45-minute program, filled with air views, diagrams, animations, spectacular glacial locations from Canada to Alaska, some humor, and interviews with important geologists, investigating such things as groundwater, varved clay, concretions, sand dunes, pingos, and the nature and destruction of the Lake Hitchcock dam in central Connecticut. You will see how Lake Hitchcock was the most important event to shape the natural and human history of the Connecticut Valley. PB - Earthview LLC SN - 0-9616520-5-5 UR - http://www.earthview.pair.com/publications.html ER - TY - JOUR T1 - Analyzing outcrop-scale fracture features to supplement investigations of bedrock aquifers JF - Hydrogeology Journal Y1 - 1997 A1 - Stephen B Mabee A1 - Hardcastle, Kenneth C. KW - #StaffPubs KW - aquifers KW - BEDROCK KW - boreholes KW - California KW - dip fractures KW - field studies KW - fractures KW - framework silicates KW - ground water KW - hydrodynamics KW - Hydrogeology 21 KW - laumontite KW - Madera County California KW - mapping KW - mineralization KW - movement KW - Raymond California KW - roughness KW - silicates KW - United States KW - zeolite group AB - A case study was conducted of 79 outcrops within 150 meters of the nine, 7590 m deep boreholes at the Lawrence Berkeley Laboratory (LBL) Fracture Hydrology Field Site in Raymond, California, USA, in order to make preliminary comparisons between surface fracture data and geophysical and hydrologic testing conducted in the boreholes. The orientation, trace length, spacing, roughness, planarity, associated mineralization, and domains (the geographic distribution of specific fracture sets) of 471 fractures were measured. Five families of steeply-dipping fractures and one family of shallow dipping fractures comprise 75 percent of the data and trend 52, 62, 130, 147, 173, and 35, respectively. The geographic distributions (domains) of the families, however, show the well field to be within the domains of the 62-, 173- and 35-trending families. The steeply-dipping fractures detected in the boreholes by LBL via acoustic televiewer logging trend about 65, 173, and 30 corroborating the findings of the fracture-domain analysis. Results indicate that the boreholes are located within a laumontite-mineralized area, including a steeply-dipping, 160-trending zone, 520 cm wide, of laumontite-rich pods that transects the boreholes. Independent hydrologic tests by LBL revealed a 160-trending barrier to groundwater flow between some of the boreholes, precisely where the 160-trending zone of laumontite-mineralized pods was mapped. PB - Verlag Heinz Heise : Hanover, Federal Republic of Germany CY - Federal Republic of Germany VL - 5 SN - 1431217414350157 UR - http://link.springer.com/article/10.1007/s100400050106 IS - 4 N1 - Accession Number: 1998-019185; Language: English; Language of Summary: French; Spanish; Coordinates: N364500N374500W1190100W1203800; Collation: 16; Publication Types: Serial; Updated Code: 199808; Illustration(s): illus. incl. 3 tables, sketch maps; Number of References: 28; Reviewed Item: Analytic JO - Hydrogeology Journal ER - TY - JOUR T1 - Comparison of three fracture sampling methods for layered rocks JF - International Journal of Rock Mechanics and Mining Sciences [1997] Y1 - 2010 A1 - Alex K Manda A1 - Stephen B Mabee KW - #StaffPubs KW - Big Quarry KW - carbonates KW - case studies KW - data acquisition KW - data processing KW - dolomite KW - Door Peninsula KW - fractures KW - geographic information systems KW - ground water KW - information systems KW - joints KW - layered materials KW - mapping KW - methods KW - movement KW - multiple scanline method KW - northeastern Wisconsin KW - numerical models KW - permeability KW - sampling KW - selection method KW - simulation KW - single scanline method KW - statistical analysis KW - Structural geology 16 KW - style KW - three-dimensional models KW - United States KW - Wisconsin AB - Three methods of fracture data collection are tested against each other in layered dolomitic rocks to evaluate the effectiveness of each method in sampling fracture properties. The methods tested are the single scanline method (SSM), selection method (SM), and multiple scanline method (MSM). Finite element techniques were first used to build a base model with the exact locations, sizes and orientations of each fracture observed in the natural fracture network. Then, a second set of models were stochastically generated using statistics from each sampling technique. For each network, the overall fracture intensity was used to assess the effectiveness of each sampling technique in capturing the real fracture properties. Fracture network permeability was also calculated for each of two directions to evaluate the transmissive properties of the networks. Although all three methods produced good matches of relative intensity and permeability between natural and synthetic fractures, the results reveal that a well-placed scanline performed the best at recreating natural fractures. However, the results from one variation of the SSM were only slightly better than the results from both versions of the SM. In general, the SSM provides the best results but possibly at heavy costs in time and labor, whereas the SM gives comparable results with less expenditure of energy and time. Thus, the SM is an adequate technique and recommended for use at large outcrops or where time, access or budget constraints are a concern. PB - Elsevier : Oxford-New York, International CY - International VL - 47 SN - 13651609 UR - http://www.sciencedirect.com/science/article/pii/S1365160909001804 IS - 22 N1 - Accession Number: 2010-041538; Language: English; Coordinates: N441500N452000W0865600W0880000; Coden: IJRMA2; Collation: 9; Publication Types: Serial; Updated Code: 201023; Illustration(s): illus. incl. 4 tables; Number of References: 25; Reviewed Item: Analytic JO - International Journal of Rock Mechanics and Mining Sciences [1997] ER - TY - JOUR T1 - Correlation of lineaments and bedrock fracture fabric; implications for regional fractured-bedrock aquifer studies, preliminary results from Georgetown, Maine JF - Ground Water Management Y1 - 1990 A1 - Stephen B Mabee A1 - Hardcastle, Kenneth C. A1 - Donald U Wise KW - #StaffPubs KW - aquifers KW - fractured materials KW - fractures KW - geophysical surveys KW - Georgetown Maine KW - ground water KW - hydrogeology KW - Hydrogeology 21 KW - imagery KW - Maine KW - remote sensing KW - Sagadahoc County Maine KW - SLAR KW - surveys KW - United States PB - Water Well Journal Pub. Co. : Dublin, OH, United States CY - United States VL - 3 SN - 10479023 UR - http://info.ngwa.org/gwol/pdf/900156672.PDF N1 - Accession Number: 1991-010604; Conference Name: FOCUS conference on Eastern regional ground water issues; Springfield, MA, United States; Conference Date: 19901017; Language: English; Collation: 15; Collation: 283-297; Publication Types: Serial; Conference document; Updated Code: 1991; Illustration(s): illus. incl. 2 tables, sketch maps; Number of References: 15; Monograph Title: Proceedings of the FOCUS conference on Eastern regional ground water issues; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Ground Water Management ER - TY - JOUR T1 - Correlation of lineaments to ground water inflows in a bedrock tunnel JF - Ground Water Y1 - 2002 A1 - Stephen B Mabee A1 - Curry, Patrick J. A1 - Hardcastle, Kenneth C. KW - #StaffPubs KW - aquifers KW - BEDROCK KW - construction KW - eastern Massachusetts KW - Engineering geology 30 KW - Framingham Quadrangle KW - ground water KW - hydrodynamics KW - Hydrogeology 21 KW - lineaments KW - massachusetts KW - Middlesex County Massachusetts KW - Natick Quadrangle KW - tectonics KW - tunnels KW - United States AB - Lineaments derived from three image types (1:80,000 black and white, 1:58,000 color infrared, and 1:250,000 side-looking airborne radar) were compared to water-bearing features within a 9.6 km section of tunnel being constructed through foliated crystalline metamorphic bedrock in a glaciated region of eastern Massachusetts. Lineaments drawn by three observers during two independent trials (N = 9137) were reduced to three sets (one per image type) of coincident lineaments (N = 794). Thirty-five coincident lineaments crossed the tunnel. Nineteen discrete flow zones, each producing ≥ 19 L/min, were identified in the tunnel and used to quantify the reliability of lineament analysis as a method of predicting water-bearing features in glaciated metamorphic rocks. Thirteen (68%) of the flow zones correlate with coincident lineaments, six zones correlate with more than one image type, and one zone correlates with all three image types. Overall, without additional corroborating evidence, it is difficult to interpret in advance which lineaments will result in a successful correlation with water-producing zones in the subsurface and which ones will not. Most of the observed flow (80%) correlates with northwest-trending coincident lineaments; however, the majority of the flow (67%) associated with these lineaments is produced from structures that strike to the north or northeast. In addition, only 15 of the 35 coincident lineaments correlate with the flow zones, indicating that 20 lineaments are not associated with any appreciable flow. Six flow zones are undetected by the lineament analysis. PB - National Ground Water Association : Urbana, IL, United States CY - United States VL - 40 SN - 0017467X UR - http://onlinelibrary.wiley.com/doi/10.1111/j.1745-6584.2002.tb02489.x/abstract IS - 11 N1 - Accession Number: 2002-016666; Language: English; Coordinates: N420800N422800W0714300W0715300; Coden: GRWAAP; Collation: 7; Publication Types: Serial; Updated Code: 200206; Illustration(s): illus. incl. 6 tables, sketch map; Number of References: 38; Reviewed Item: Analytic JO - Ground Water ER - TY - JOUR T1 - Factors influencing well productivity in glaciated metamorphic rocks JF - Ground Water Y1 - 1999 A1 - Stephen B Mabee KW - #StaffPubs KW - aquifers KW - BEDROCK KW - controls KW - depth KW - drinking water KW - fractures KW - Georgetown Island KW - glacial environment KW - ground water KW - Hydrogeology 21 KW - Maine KW - metamorphic rocks KW - porosity KW - surface water KW - thickness KW - topography KW - transmissivity KW - United States KW - water wells PB - National Water Well Association, Ground-Water Technology Division : Urbana, IL, United States CY - United States VL - 37 SN - 0017467X UR - http://onlinelibrary.wiley.com/doi/10.1111/j.1745-6584.1999.tb00961.x/abstract IS - 11 N1 - Accession Number: 1999-037034; Language: English; Coden: GRWAAP; Collation: 10; Publication Types: Serial; Updated Code: 199913; Illustration(s): illus. incl. 7 tables, geol. sketch map; Number of References: 37; Reviewed Item: Analytic JO - Ground Water ER - TY - JOUR T1 - A field study (Massachusetts, USA) of the factors controlling the depth of groundwater flow systems in crystalline fractured-rock terrain JF - Hydrogeology Journal Y1 - 2010 A1 - David F Boutt A1 - Diggins, Patrick A1 - Stephen B Mabee KW - #StaffPubs KW - aquifers KW - boreholes KW - crystalline rocks KW - eastern Massachusetts KW - fractured materials KW - fractures KW - ground water KW - hydraulic conductivity KW - Hydrogeology 21 KW - massachusetts KW - Nashoba terrane KW - permeability KW - porosity KW - preferential flow KW - shallow-water environment KW - substrates KW - United States AB - Groundwater movement and availability in crystalline and metamorphosed rocks is dominated by the secondary porosity generated through fracturing. The distributions of fractures and fracture zones determine permeable pathways and the productivity of these rocks. Controls on how these distributions vary with depth in the shallow subsurface (<300 m) and their resulting influence on groundwater flow is not well understood. The results of a subsurface study in the Nashoba and Avalon terranes of eastern Massachusetts (USA), which is a region experiencing expanded use of the fractured bedrock as a potable-supply aquifer, are presented. The study logged the distribution of fractures in 17 boreholes, identified flowing fractures, and hydraulically characterized the rock mass intersecting the boreholes. Of all fractures encountered, 2.5% are hydraulically active. Boreholes show decreasing fracture frequency up to 300 m depth, with hydraulically active fractures showing a similar trend; this restricts topographically driven flow. Borehole temperature profiles corroborate this, with minimal hydrologically altered flow observed in the profiles below 100 m. Results from this study suggest that active flow systems in these geologic settings are shallow and that fracture permeability outside of the influence of large-scale structures will follow a decreasing trend with depth. Copyright 2010 Springer-Verlag PB - Springer : Berlin - Heidelberg, Germany CY - Federal Republic of Germany VL - 18 SN - 1431217414350157 UR - http://link.springer.com/article/10.1007%2Fs10040-010-0640-y IS - 88 N1 - Accession Number: 2011-042136; Language: English; Coordinates: N420000N425000W0695500W0714500; Collation: 16; Publication Types: Serial; Updated Code: 201124; Illustration(s): illus. incl. 3 tables, geol. sketch map; Number of References: 58; Reviewed Item: Analytic JO - Hydrogeology Journal ER - TY - JOUR T1 - Implications of anthropogenic river stage fluctuations on mass transport in a valley fill aquifer JF - Water Resources Research Y1 - 2009 A1 - David F Boutt A1 - Brandon J Fleming KW - #Hydro KW - #WaterResources KW - aquifers KW - boundary conditions KW - Charlemont KW - Deerfield River basin KW - fluctuations KW - fluvial features KW - Franklin County Massachusetts KW - ground water KW - human activity KW - Hydrogeology 21 KW - hydrology KW - massachusetts KW - numerical models KW - preferential flow KW - rivers KW - shallow aquifers KW - streams KW - surface water KW - transport KW - two-dimensional models KW - United States KW - valleys AB - In humid regions a strong coupling between surface water features and groundwater systems may exist. In these environments the exchange of water and solute depends primarily on the hydraulic gradient between the reservoirs. We hypothesize that daily changes in river stage associated with anthropogenic water releases (such as those from a hydroelectric dam) cause anomalous mixing in the near-stream environment by creating large hydraulic head gradients between the stream and adjacent aquifer. We present field observations of hydraulic gradient reversals in a shallow aquifer. Important physical processes observed in the field are explicitly reproduced in a physically based two-dimensional numerical model of groundwater flow coupled to a simplistic surface water boundary condition. Mass transport simulations of a conservative solute introduced into the surface water are performed and examined relative to a stream condition without stage fluctuations. Simulations of 20 d for both fluctuating river stage and fixed high river stage show that more mass is introduced into the aquifer from the stream in the oscillating case even though the net water flux is zero. Enhanced transport by mechanical dispersion leads to mass being driven away from the hydraulic zone of influence of the river. The modification of local hydraulic gradients is likely to be important for understanding dissolved mass transport in near-stream aquifer environments and can influence exchange zone processes under conditions of high-frequency stream stage changes. PB - American Geophysical Union : Washington, DC, United States VL - 45 SN - 0043139719447973 UR - http://onlinelibrary.wiley.com/doi/10.1029/2007WR006526/full IS - 44 JO - Water Resources Research ER - TY - JOUR T1 - Improving seismic hazard assessment in New England through the use of surficial geologic maps and expert analysis JF - Special Paper - Geological Society of America Y1 - 2012 A1 - Becker, Laurence R. A1 - Patriarco, Steven P. A1 - Marvinney, Robert G. A1 - Thomas, Margaret A. A1 - Stephen B Mabee A1 - Fratto, Edward S. KW - #StaffPubs KW - civil engineering KW - earthquakes KW - Eastern U.S. KW - Engineering geology 30 KW - Environmental geology 22 KW - geologic hazards KW - mitigation KW - natural hazards KW - New England KW - Northeastern U.S. KW - risk assessment KW - risk management KW - safety KW - seismic risk KW - seismicity KW - United States AB - (GSA Special Paper) In New England, earthquakes pose a risk to the built environment. Emergency preparedness and mitigation planning are prudent in this region as older unreinforced masonry buildings and numerous critical facilities are common. New England state geological surveys cooperate with the Northeast States Emergency Consortium (NESEC) to improve risk communication with emergency managers. To that end, Connecticut, Maine, Massachusetts, and Vermont employed surficial geologic maps, deglaciation history, knowledge of the glacial stratigraphy, and professional judgment to reclassify surficial geologic material units into one of the five National Earthquake Hazards Reduction Program (NEHRP) site classifications (A, B, C, D, and E). These new classifications were used as a substitute for the HAZards U.S. Multi-Hazard (HAZUS-MH) site class value of "D," which is used throughout New England as a default value. In addition, coding of surficial geologic materials for the five NEHRP site classifications was compared with classifications using the Wald methodology, a method that uses a slope analysis as a proxy for shear-wave velocity estimates. Comparisons show that coding to site classes using the Wald methodology underestimates categories A (high-velocity shear-wave materials, least relative hazard) and E (lowest-velocity shear-wave materials, greatest relative hazard) when evaluated side by side with coding done with the aid of surficial geologic maps. North of the glacial limit, derangement of drainage resulted in extensive ponding of meltwaters and the subsequent deposition of thick sequences of lacustrine mud. Inundation by the sea immediately following deglaciation in New England resulted in the deposition of spatially extensive and locally thick sequences of glacial marine mud. Surficial geologic maps better capture this circumstance when compared with the Wald topographic slope analysis. Without the use of surficial geologic maps, significant areas of New England will be incorrectly classified as being more stable than the site conditions that actually exist. By employing surficial geologic information, we project an improved accuracy for HAZUS-MH earthquake loss estimations, providing local and regional emergency managers with more accurate information for locating and prioritizing earthquake planning, preparedness, and mitigation projects to reduce future losses. PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 493 SN - 007210779780813724935 UR - http://specialpapers.gsapubs.org/content/493/221.abstract N1 - Accession Number: 2013-034008; Conference Name: Geological Society of America, 2010 annual meeting; Denver, CO, United States; Conference Date: 20101031; Language: English; Coden: GSAPAZ; Collation: 22; Collation: 221-242; Publication Types: Serial; Conference document; Updated Code: 201321; Illustration(s): illus. incl. 6 tables, geol. sketch maps; Number of References: 36; Monograph Title: Recent advances in North American paleoseismology and neotectonics east of the Rockies; Monograph Author(s): Cox, Randel Tom [editor]; Tuttle, Martitia P. [editor]; Boyd, Oliver S. [editor]; Locat, Jacques [editor]; Reviewed Item: Analytic JO - Special Paper - Geological Society of America ER - TY - JOUR T1 - Influence of rock fabric on fracture attribute distribution and implications for groundwater flow in the Nashoba Terrane, eastern Massachusetts JF - Journal of Structural Geology Y1 - 2008 A1 - Alex K Manda A1 - Stephen B Mabee A1 - Donald U Wise KW - #StaffPubs KW - foliation KW - fractures KW - ground water KW - Hydrogeology 21 KW - joints KW - massachusetts KW - movement KW - Nashoba terrane KW - preferred orientation KW - statistical distribution KW - structural analysis KW - Structural geology KW - style KW - terranes KW - United States AB - Attributes (i.e. trace-length, spacing, termination and orientation) of joints and foliation-parallel fractures (FPFs) are used to assess the influence of lithology and fabric on fracture type and distribution in metamorphic and igneous rocks of the Nashoba terrane, Massachusetts. Orientations of NE-SW and NW-SE trending joints are consistent throughout the region, whereas FPFs are sub-parallel to the axis of the terrane. Joint spacing generally decreases to the northeast across the terrane reflecting lithologic changes from metamorphic to igneous rock types. Although trace-length and spacing frequency distributions of both joints and FPFs are best described by lognormal functions, FPFs possess narrower fracture spacing than joints. Median fracture trace-lengths of all FPFs are comparable to those of all steep joints, but the median fracture spacing is half that of all steep joints. Trace-lengths of FPFs vary as a function of the degree of development of foliation. Fracture attributes and groundwater flow models suggest that FPFs may significantly increase fracture connectivity and potential for groundwater recharge. FPFs may account for as much as 30% of flow in fracture networks suggesting that in addition to joints, FPFs play a significant role in groundwater hydraulics that may include imparting flow anisotropy on the groundwater system. PB - Elsevier : Oxford, International CY - International VL - 30 SN - 01918141 UR - http://www.sciencedirect.com/science/article/pii/S0191814107002362 IS - 44 N1 - Accession Number: 2009-050694; Language: English; Coden: JSGEDY; Collation: 14; Publication Types: Serial; Updated Code: 200928; Reviewed Item: Analytic JO - Journal of Structural Geology ER - TY - JOUR T1 - A method of collecting and analyzing lineaments for regional-scale fractured-bedrock aquifer studies JF - Ground Water Y1 - 1994 A1 - Stephen B Mabee A1 - Hardcastle, Kenneth C. A1 - Donald U Wise KW - #StaffPubs KW - aquifers KW - BEDROCK KW - coastal environment KW - fractured materials KW - Georgetown Island KW - ground water KW - Hydrogeology 21 KW - Knox County Maine KW - lineaments KW - Maine KW - mapping KW - mathematical methods KW - processes KW - tectonics KW - United States AB - A new method is proposed for collecting and reducing large collections of lineament data. The method consists of three steps: (1) collection of lineament data using multiple observers, multiple observation trials, and several types of imagery; (2) reproducibility tests; and (3) domain overlap analysis. Collection of lineament data and reproducibility tests are performed by overlaying lineament maps drawn by several observers or by superimposing multiple maps prepared by a single observer and identifying lineaments which are coincident (coincident lineaments = lineaments that have azimuths within 5 ± and separation distances are within 1–2 mm at the scale of drawing). Domain overlap analysis is accomplished by measuring the trends of near-vertical fractures at outcrops distributed over the study region and comparing the spatial distribution of these trends with similar-trending coincident lineaments. Lineaments that are not reproducible and are not geographically correlative with fractures are considered unimportant and removed from the data base. The method was applied to a 44 km2 study area in Maine and resulted in a reduction in the lineament data base from 6500 to 217. Transmissivities determined for bedrock wells located within 30 meters of lineaments that are both reproducible and geographically correlative with outcrop-scale fractures are generally higher than the transmissivities of wells located near lineaments that are not separated on the basis of these criteria. Application of the method serves as an important filter by providing a more manageable lineament data base from which to begin detailed field checking and/or geophysical surveys directed toward specific lineaments. PB - National Water Well Association, Ground-Water Technology Division : Urbana, IL, United States CY - United States VL - 32 SN - 0017467X UR - http://onlinelibrary.wiley.com/doi/10.1111/j.1745-6584.1994.tb00928.x/abstract IS - 66 N1 - Accession Number: 1996-036299; Language: English; Coordinates: N435500N435500W0691000W0691000; Coden: GRWAAP; Collation: 11; Publication Types: Serial; Updated Code: 199612; Illustration(s): illus.; Number of References: 20; Reviewed Item: Analytic JO - Ground Water ER - TY - JOUR T1 - A method of estimating bulk potential permeability in fractured-rock aquifers using field-derived fracture data and type curves JF - Hydrogeology Journal Y1 - 2013 A1 - Alex K Manda A1 - Stephen B Mabee A1 - David F Boutt A1 - Cooke, Michele L. KW - #StaffPubs KW - aquifers KW - boundary conditions KW - eastern Massachusetts KW - fractured materials KW - fractures KW - ground water KW - Hydrogeology 21 KW - massachusetts KW - Nashoba terrane KW - naturally fractured reservoirs KW - numerical models KW - permeability KW - prediction KW - pump tests KW - simulation KW - two-dimensional models KW - United States AB - A method is devised for estimating the potential permeability of fracture networks from attributes of fractures observed in outcrop. The technique, which is intended as a complement to traditional approaches, is based on type curves that represent various combinations of fracture lengths, fracture orientations and proportions (i.e., intensities) of fractures that participate in flow. Numerical models are used to derive the type curves. To account for variations in fracture aperture, a permeability ratio (R) defined as the permeability of a fracture network in a domain divided by the permeability of a single fracture with identical fracture apertures, is used as a dependent variable to derive the type curves. The technique works by determining the point on the type curve that represents the fracture characteristics collected in the field. To test the performance of the technique, permeabilities that were derived from fractured-rock aquifers of eastern Massachusetts (USA) are compared to permeabilities predicted by the technique. Results indicate that permeabilities estimated from type curves are within an order of magnitude of permeabilities derived from field tests. First-order estimates of fracture-network permeability can, therefore, be easily and quickly acquired with this technique before more robust and expensive methods are utilized in the field. Copyright 2012 Springer-Verlag Berlin Heidelberg PB - Springer : Berlin - Heidelberg, Germany CY - Federal Republic of Germany VL - 21 SN - 1431217414350157 UR - http://link.springer.com/article/10.1007%2Fs10040-012-0919-2 IS - 22 N1 - Accession Number: 2013-055373; Language: English; Coordinates: N421500N424500W0704500W0714500; Collation: 13; Publication Types: Serial; Updated Code: 201334; Illustration(s): illus. incl. 4 tables, geol. sketch maps; Number of References: 41; Reviewed Item: Analytic JO - Hydrogeology Journal ER - TY - JOUR T1 - Microprobe monazite geochronology; new refinements and new tectonic applications JF - Abstracts with Programs - Geological Society of America Y1 - 2003 A1 - Williams, Michael L. A1 - Jercinovic, Michael J. A1 - Mahan, Kevin A1 - Joseph P Kopera KW - #StaffPubs KW - age; KW - electron probe data; KW - geochronology; KW - Geochronology; 03 KW - Igneous and metamorphic petrology; 05A KW - metamorphic rocks; KW - metamorphism; KW - methods; KW - monazite; KW - P-T-t paths; KW - phosphates; AB -High-resolution compositional mapping and dating of monazite on the electron microprobe is a powerful addition to microstructural and petrologic analysis and an important tool for tectonic studies. Its in-situ nature and high spatial resolution offer an entirely new level of structurally and texturally specific geochronologic data that can be used to put absolute time constraints on P-T-D paths, constrain the rates of sedimentary, metamorphic, and deformational processes, and provide new links between metamorphism and deformation. New analytical techniques have significantly improved the precision and accuracy of the technique and new mapping and image analysis techniques have increased the efficiency and strengthened the correlation with fabrics and textures. Microprobe geochronology is particularly applicable to three persistent microstructural-microtextural problem areas: (1) constraining the chronology of metamorphic assemblages; (2) constraining the timing of deformational fabrics; and (3) interpreting other geochronological results. In addition, authigenic monazite can be used to date sedimentary basins, and detrital monazite can fingerprint sedimentary source areas, both critical for tectonic analysis. Although some monazite generations can be directly tied to metamorphism or deformation, at present, the most common constraints rely on monazite inclusion relations in porphyroblasts that, in turn, can be tied to the deformation and/or metamorphic history. Microprobe mapping and dating allow geochronology to be incorporated into the routine microstructural analytical process, resulting in a new level of integration of time (t) into P-T-D histories. The Legs Lake exhumational shear zone in Saskatchewan is a classic example. Monazite can be tied to decompressional metamorphic reactions in the upper plate and to prograde reactions and shear fabrics in the footwall, firmly constraining the timing of regional exhumations with a long multiphase tectonic history.
PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 35 SN - 00167592 UR - http://silk.library.umass.edu/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=geh&AN=2004-076942&site=ehost-live&scope=site IS - 33 N1 - Accession Number: 2004-076942; Conference Name: Geological Society of America, Northeastern Section, 38th annual meeting; Halifax, NS, Canada; Conference Date: 20030327; Language: English; Coden: GAAPBC; Collation: 2; Collation: 22-23; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200422; Monograph Title: Geological Society of America, Northeastern Section, 38th annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - JOUR T1 - Monazite geochronology of Proterozoic quartzites; a powerful tool for understanding reactivation of continental lithosphere in the Southwestern United States JF - Abstracts with Programs - Geological Society of America Y1 - 2002 A1 - Joseph P Kopera A1 - Williams, Michael L. A1 - Jercinovic, Michael J. KW - #StaffPubs KW - absolute age; KW - continental lithosphere; KW - crust; KW - deformation; KW - Geochronology; 03 KW - Jawbone Syncline; KW - lithosphere; KW - Mazatzal Orogeny; KW - metamorphic rocks; KW - metamorphism; KW - monazite; KW - New Mexico; KW - orogeny; KW - Paleoproterozoic; KW - phosphates; KW - Precambrian; KW - Proterozoic; KW - quartzites; KW - Southwestern U.S.; KW - tectonics; KW - Tusas Mountains; KW - United States; KW - upper Precambrian; AB -The influence of approximately 1.65 vs. 1.4 Ga tectonism on the evolution of the Proterozoic orogenic belt in the southwestern United States has been an issue of considerable debate. This belt was assembled at approximately 1.75-1.65 Ga, but recent work has highlighted a significant reactivation of the orogen at 1.4 Ga. The discovery of abundant monazite in regionally extensive, 1-2 km thick quartzites found throughout the orogenic belt may provide important new constraints on its tectonic history. These quartzites define the present regional geometry of exposed Proterozoic rocks and are believed to strongly influence local structure. Preliminary results of in-situ microprobe dating of monazite from the Ortega Quartzite in the Tusas Mountains in northern New Mexico suggest an increasing influence of 1.4 Ga tectonism from north to south within the range. Monazite from the Jawbone Syncline within northernmost part of the range consistently yields ages of 1.75 to 1.72 Ga. These monazite grains are interpreted to be mostly detrital in origin, with REE and age zoning reflecting the history of the source terranes. Monazite from an anticline immediately to the south has 1.72-1.75 Ga detrital cores with 1.67-1.68 Ga rims, implying that initial fold formation occurred during the approximately 1.67-1.65 Ga Mazatzal Orogeny. Monazite from the middle and southern Tusas Mountains is predominantly 1.4 Ga in age. This suggests that a previously documented gradient in deformation and metamorphism from north to south may reflect a multistage tectonic history for the range, with an increasingly intense overprint of 1.4 Ga tectonism to the south. Monazite has also been found in several Proterozoic quartzites in Colorado, allowing the possibility to compare and correlate deformation and metamorphism across the region. Monazite dating in thick quartzites represents a powerful tool by which the effects of approximately 1.65 and 1.4 Ga tectonism can be separated, leading to a better understanding of the evolution and stabilization of Proterozoic crust in the southwestern United States and may be an important new technique in deconvoluting the tectonic histories of other orogenic belts.
PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 34 SN - 00167592 UR - http://silk.library.umass.edu/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=geh&AN=2004-069830&site=ehost-live&scope=site IS - 11 N1 - Accession Number: 2004-069830; Conference Name: Geological Society of America, Northeastern Section, 37th annual meeting; Springfield, MA, United States; Conference Date: 20020325; Language: English; Coden: GAAPBC; Collation: 1; Collation: 26; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200421; Monograph Title: Geological Society of America, Northeastern Section, 37th annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - JOUR T1 - Monazite geochronology of the Ortega Quartzite: documenting the extent of 1.4 Ga tectonism in northern New Mexico and across the orogen JF - Abstracts with Programs - Geological Society of America Y1 - 2002 A1 - Joseph P Kopera A1 - Williams, Michael L. A1 - Jercinovic, Michael J. KW - #StaffPubs KW - anticline KW - deformation; KW - folds; KW - monazite; KW - New Mexico; KW - orogeny; KW - Ortega Group; KW - phosphates; KW - Precambrian; KW - Proterozoic; KW - Structural geology; 16 KW - tectonics; KW - Tusas Mountains; KW - United States; KW - upper Precambrian; AB -Preliminary results of in-situ microprobe dating of monazite from the Ortega Quartzite suggest an increasing influence of 1.4 Ga tectonism from north to south within the in the Tusas Mountains of northern New Mexico. Monazite from the Jawbone Syncline within northernmost part of the range consistently yields ages of 1.75 to 1.72 Ga. These monazite grains are interpreted to be mostly detrital in origin, with REE and age zoning reflecting the history of the source terranes. Monazite from an anticline immediately to the south has 1.72-1.75 Ga detrital cores with 1.67-1.68 Ga rims, implying that initial fold formation occurred during the approximately 1.67-1.65 Ga Mazatzal Orogeny. Monazite from the middle and southern Tusas Mountains is predominantly 1.4 Ga in age. This suggests that a previously documented gradient in deformation and metamorphism from north to south may reflect a multistage tectonic history for the range, with an increasingly intense overprint of 1.4 Ga tectonism to the south. The discovery of abundant monazite in regionally extensive, 1-2 km thick quartzites found throughout the Proterozoic orogenic belt of the southwestern United States may provide important new constraints on the region's tectonic history, specifically, the extent and influence of 1.4 Ga tectonism on the formation and modification of fundamental large-scale structures. These quartzites define the present regional geometry of exposed rocks within the Proterozoic Mazatzal Province, and are believed to strongly influence local structure. In addition to northern New Mexico, monazite has also been found in several Proterozoic quartzites in Colorado, allowing the possibility to compare and correlate deformation and metamorphism across the region. Monazite dating in thick quartzites represents a powerful tool by which we can better understand the evolution and stabilization of Proterozoic crust in the southwestern United States, and may be an important new technique in deconvoluting the tectonic histories of other orogenic belts.
PB - Geological Society of America (GSA) : Boulder, CO, United States CY - United States VL - 34 SN - 00167592 UR - http://silk.library.umass.edu/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=geh&AN=2003-041318&site=ehost-live&scope=site IS - 44 N1 - Accession Number: 2003-041318; Conference Name: Geological Society of America, Rocky Mountain Section, 54th annual meeting; Cedar City, UT, United States; Conference Date: 20020507; Language: English; Coden: GAAPBC; Collation: 1; Collation: 10; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200313; Monograph Title: Geological Society of America, Rocky Mountain Section, 54th annual meeting; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - Abstracts with Programs - Geological Society of America ER - TY - JOUR T1 - Monazite geochronology of the Proterozoic Ortega Quartzite; documenting the extent of 1.4 Ga tectonism in the Tusas Range and beyond JF - New Mexico Geology Y1 - 2002 A1 - Joseph P Kopera A1 - Williams, Michael L. A1 - Jercinovic, Michael J. KW - #StaffPubs KW - absolute age; KW - dates; KW - deformation; KW - electron probe data; KW - geochronology; KW - Geochronology; 03 KW - ion probe data; KW - mass spectra; KW - metamorphic rocks; KW - metamorphism; KW - monazite; KW - New Mexico; KW - orogeny; KW - Ortega Group; KW - phosphates; KW - Precambrian; KW - Proterozoic; KW - quartzites; KW - spectra; KW - Structural geology; 16 KW - tectonics; KW - Tusas Mountains; KW - United States; KW - upper Precambrian; PB - New Mexico Bureau of Mines and Mineral Resources : Socorro, NM, United States CY - United States VL - 24 SN - 0196948X UR - http://silk.library.umass.edu/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=geh&AN=2004-009303&site=ehost-live&scope=site IS - 22 N1 - Accession Number: 2004-009303; Conference Name: New Mexico Geological Society spring meeting; Socorro, NM, United States; Conference Date: 20020405; Language: English; Coden: NMGED2; Collation: 1; Collation: 59; Publication Types: Abstract Only; Serial; Conference document; Updated Code: 200403; Monograph Title: New Mexico Geological Society spring meeting; abstracts; Monograph Author(s): Anonymous; Reviewed Item: Analytic JO - New Mexico Geology ER - TY - JOUR T1 - Overcoming the momentum of anachronism; American geologic mapping in a twenty-first-century world JF - Special Paper - Geological Society of America Y1 - 2013 A1 - House, P. Kyle A1 - Clark, Ryan A1 - Joseph P Kopera KW - #StaffPubs KW - applications KW - areal geology KW - cartography KW - computer programs KW - data processing KW - digital cartography KW - geographic information systems KW - Geologic maps 14 KW - Global Positioning System KW - history KW - information systems KW - laser methods KW - lidar methods KW - mapping KW - methods KW - technology KW - United States AB - The practice of geologic mapping is undergoing conceptual and methodological transformation. Profound changes in digital technology in the past 10 yr have potential to impact all aspects of geologic mapping. The future of geologic mapping as a relevant scientific enterprise depends on widespread adoption of new technology and ideas about the collection, meaning, and utility of geologic map data. It is critical that the geologic community redefine the primary elements of the traditional paper geologic map and improve the integration of the practice of making maps in the field and office with the new ways to record, manage, share, and visualize their underlying data. A modern digital geologic mapping model will enhance scientific discovery, meet elevated expectations of modern geologic map users, and accommodate inevitable future changes in technology. PB - Geological Society of America (GSA) : Boulder, CO, United States VL - 502 SN - 00721077 UR - http://specialpapers.gsapubs.org/content/502/103.abstract JO - Special Paper - Geological Society of America ER - TY - MAP T1 - Bedrock geologic map and cross sections of the Mt. Grace - Northfield area, Massachusetts and New Hampshire Y1 - 2011 A1 - Robinson, P. KW - #BedrockMap KW - #MGSPub KW - Bernardston KW - BRONSON HILL KW - ERVING KW - Gill KW - gneiss dome KW - Mt Grace KW - Northfield KW - Oliverean Domes KW - Orange KW - Royalston KW - Warwick AB - The culmination of over 50 years of mapping and geologic investigation by U-Mass professor Peter Robinson and his students, this map details the structure and stratigraphy of the Oliverean gneiss domes and the continuation of the Bronson Hill sequence south into central Massachusetts. This map is undergoing editing and review and will be available shortly. Please contact Stephen Mabee if you would like a draft copy. PB - Massachusetts Geological Survey ER - TY - MAP T1 - Bedrock Geologic Map of Massachusetts Y1 - 1983 A1 - Zen, E-an A1 - Goldsmith, Richard A1 - Ratcliffe, Nicholas M A1 - Robinson, P A1 - Stanley, Rolfe S A1 - Hatch, Norman L A1 - Shride, Andrew F A1 - Weed, Elaine G A A1 - Wones, David R KW - #MassGeology KW - #MassGeologyMap KW - #StateGeologicMap KW - bedrock geology KW - eastern MA KW - GEOLOGIC MAP KW - GEOLOGY KW - map KW - massachusetts KW - western MA AB -(Zen et al., 1983) The 1:250,000 scale Bedrock Geologic Map of Massachusetts, published by the USGS in 1983, shows the distribution of the different rock units, faults, and other features that make up the bedrock of Massachusetts. It was compiled from published 1:24,000-scale maps., unpublished data, and field reconnaissance by the authors. Many areas of the state, however, have yet to be mapped thoroughly at 1:24,000 scale. A paper version can be ordered from the USGS Store (http://store.usgs.gov/) by searching for Product Number: 32370 or by clicking the links below. A two-volume text, The Bedrock Geology of Massachusetts, published in 1991, accompanies the map. The publication is catalogued as U.S. Geological Survey Professional Paper 1366 A-D (western Mass.) and 1366 E-J (eastern Mass.)
A variety of ways to download the map and text are listed in "Other Links" below.
JF - USGS Unnumbered Series PB - United States Geological Survey UR - http://ngmdb.usgs.gov/Prodesc/proddesc_16357.htm U2 -1:250,000
ER - TY - MAP T1 - Bedrock geologic map of the Ayer 7.5’ quadrangle, Worcester and Middlesex Counties, Massachusetts Y1 - 0 A1 - Kopera J.P. KW - Ayer KW - ayer granite KW - Ayer Granodiorite KW - Ayer Quadrangle KW - Berwick KW - Campbell Hill Fault KW - chelmsford granite KW - Clinton Newbury Fault KW - Devens KW - Harvard Conglomerate KW - merrimack KW - Oakdale formation KW - pin hill KW - Shepley's Hill KW - Shirley Fault KW - tadmuck brook schist KW - Worcester Formation AB -Editing and review are still underway. This map should be available in winter 2015/2016
JF - Open File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Bedrock geologic map of the Ayer 7.5’ quadrangle, Worcester and Middlesex Counties, Massachusetts (2015) Y1 - 0 A1 - Joseph P Kopera KW - Ayer KW - ayer granite KW - Ayer Granodiorite KW - Ayer Quadrangle KW - Berwick KW - Campbell Hill Fault KW - chelmsford granite KW - Clinton Newbury Fault KW - Devens KW - Harvard Conglomerate KW - merrimack KW - Oakdale formation KW - pin hill KW - Shepley's Hill KW - Shirley Fault KW - tadmuck brook schist KW - Worcester Formation AB -Editing and review are still underway. This map should be available in winter 2015/2016
JF - Open File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Bedrock geologic map of the Belchertown 7.5’ quadrangle, Hampshire County, Massachusetts Y1 - 0 A1 - Robinson, P. KW - Belchertown KW - BRONSON HILL KW - Deerfield Basin KW - Hartford Basin KW - Holyoke Range KW - Pelham Asbestos Mine KW - PELHAM DOME AB -Map currently undergoing editing. Will be available after 10/30/15
JF - Open File Report PB - Massachusetts Geological Survey ER - TY - MAP T1 - Bedrock geologic map of the Marlborough quadrangle, Massachusetts Y1 - 2004 A1 - Joseph P Kopera A1 - DiNitto, R.G. A1 - Hepburn, J.C. KW - #BedrockMaps KW - #MGSPub KW - alaskite KW - amphibolite KW - Andover Granite KW - Ashland KW - Berlin KW - Bloody Bluff KW - Burlington Mylonite Zone KW - epidote KW - fault zone KW - gneiss KW - granite KW - granofels KW - Hope Valley Alaskite KW - Hopkinton KW - Hudson KW - Indian Head Hill KW - Lake Char KW - Malborough KW - Milford granite KW - Milham Reservoir KW - mylonite KW - Northborough KW - quartzite KW - schist KW - shear zone KW - Southborough KW - volcanic KW - Waltham Tectonic Melange KW - Westborough KW - Wolfpen Lens JF - geologic Map PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Bedrock geologic map of the Newton 7.5’ quadrangle, Middlesex and Suffolk Counties, Massachusetts Y1 - 0 A1 - Thompson, Margaret D. KW - Boston Basin KW - Cambridge Argillite' KW - Eidiacarian KW - Lynn Volcanics KW - Lynn-Mattapan volcanics KW - Mattapan Volcanics KW - Precambrian KW - Roxbury Conglomerate AB -This map has been superseded by GM-17-01 at https://mgs.geo.umass.edu/newton
JF - Open File Report ER - TY - MAP T1 - Bedrock geologic map of the Newton 7.5’ quadrangle, Middlesex, Norfolk and Suffolk counties, Massachusetts Y1 - 0 A1 - Thompson, Margaret D. KW - #BedrockMaps KW - #MGSPub KW - argillite KW - Boston KW - Boston Basin KW - Cambridge KW - faults KW - Lynn KW - Mattapan KW - Middlesex Fells KW - Newton KW - Roxbury KW - volcanics AB -The Newton quadrangle, located west of Boston, Massachusetts, is mainly underlain by clastic sedimentary and minor igneous rocks occupying the topographic Boston Basin (Crosby, 1880; Emerson, 1917; LaForge, 1932; Billings, 1976 and references therein). Fault blocks dominated by older plutonic and volcanic rocks truncate the Basin sequence on the west and south. Although fossiliferous Cambrian strata overlying plutonic basement had been reported some 30 miles away in North Attleboro, MA (Billings, 1929), the first quadrangle map including the Newton area (1:62,500 Plate I of LaForge, 1932) portrayed the plutonic units as “Early Paleozoic” and assigned all the others to the Devonian or Carboniferous periods. By the time the Newton quadrangle appeared at 1:24,000 scale (Kaye, 1980), emerging U-Pb zircon geochronology had revealed Neoproterozoic (Ediacaran in timescale of Gradstein et al., 2012) crystallization ages both for the Mattapan Volcanic Complex and the Dedham Granite on the south side of the map area (Kaye and Zartman, 1980; written communication of Zartman and Naylor, 1980 not published until 1984). The Boston Basin sequence in this map was inferred to be Neoproterozoic in the absence of a break with overlying Cambrian strata (Kaye and Zartman, 1980), an interpretation confirmed shortly thereafter by the discovery of Ediacaran microfossils in the top portion of the sedimentary section (“Vendian” in Lenk et al., 1982). In the map presented here, U-Pb zircon dates obtained by the author over twenty years with colleagues at MIT’s Radiogenic Isotope Lab constrain all map units except mafic dikes. During this interval, U-Pb analyses have become more precise and accurate, leading also to significant refinements to the dates used by Kaye in 1980, as discussed further in the section on Stratigraphy.
JF - Geologic Map PB - Massachusetts Geological Survey ER - TY - MAP T1 - [Digital Conversion] Bedrock geologic map of the Gloucester and Rockport quadrangles, Massachusetts Y1 - 2007 A1 - Dennen W. A1 - Fernandez M. KW - #BedrockMaps KW - #MGSPub KW - Cape Anne granite KW - Essex KW - Gloucester KW - granite KW - Ipswich KW - Manchester KW - MGS Publication KW - pluton KW - quarry KW - Rockport AB -Digitized version of U.S. Geological Survey Miscellaneous Investigations Series Map I-2285
JF - Digital Conversion PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Digital conversion of Peck, J.H., 1975, Preliminary bedrock geologic map of the Clinton quadrangle, Worcester County, Mass., U.S. Geological Survey Open File Report 75-658 Y1 - 2012 A1 - Peck, J.A. ED - Joseph P Kopera KW - #BedrockMap KW - #MGSPub KW - andalusite KW - ayer granite KW - Berlin KW - Bolton KW - Boylston KW - Clinton KW - Clinton-Newbury Fault KW - Devens KW - Harvard KW - Lancaster KW - Leominster KW - nashoba KW - Oakdale Quartzite KW - Peck KW - phyllite KW - quartzite KW - Reuben's Hill Formation KW - Sterling KW - tadmuck brook schist KW - Tower Hill quartzite KW - Wekepeke Fault KW - Worcester Formation AB - This map is an interim product and will be superseded by an updated bedrock map of the quadrangle in 2016. This map is a digital version of USGS OFR 75-658: http://pubs.er.usgs.gov/publication/ofr75658 There are some cartographic errors in creating a digital version: A Jurassic diabase dike along the western edge of the quadrangle is not shown in the digital version. These errors are being corrected. JF - Digital Conversion PB - Massachusetts Geological Survey U2 - 1:24000 ER - TY - MAP T1 - [Draft] Fracture characterization map of the Hudson quadrangle, Massachusetts Y1 - 2005 A1 - Stephen B Mabee KW - #FractureMaps KW - #MGSPub KW - Berlin KW - Bolton KW - Boxborough KW - fault KW - fracture KW - fracture characterization KW - fracture trace KW - Harvard KW - Hudson KW - joint KW - Malborough KW - Stow AB -This preliminary version of the Fracture Characterization Map of the Hudson Quadrangle (Kopera, 2006) has been removed pending the future release of an updated version of the underlying bedrock geologic. The above version should be considered outdated. If you would like a copy of the outdated map, please contact Joseph Kopera at jkopera[at]geo[dot]geo[dot]umass[dot]edu
JF - Open-File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - [Draft] Preliminary bedrock geologic map of the Lawrence quadrangle, Massachusetts Y1 - 2005 A1 - Castle, R.O. A1 - Hepburn, J.C. A1 - Joseph P Kopera KW - #BedrockMaps KW - #MGSPub KW - Andover KW - Andover Granite KW - Bedford KW - Berwick formation KW - Clinton-Newbury Fault KW - Dracut KW - Elliot formation KW - Lawrence KW - Methuen KW - nashoba KW - North Andover KW - tadmuck brook schist KW - Tewksbury JF - Open-File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - [Draft] Preliminary bedrock geologic map of the Oxford quadrangle, Worcester County, Massachusetts, Providence County, Rhode Island and Windam County, Connecticut Y1 - 2005 A1 - Patrick J Barosh KW - #BedrockMaps KW - #MGSPub KW - Bloody Bluff KW - Douglas KW - faults KW - gneiss KW - granite KW - Lake Char KW - Marlborough Formation KW - Nashoba Formation KW - Nashua Trough KW - Northbridge granite gneiss KW - Oxford KW - Sutton KW - Webster JF - Open File Report PB - Massachusetts Geological Survey U1 -GIS and metadata are forthcoming
U2 -1:24000
ER - TY - MAP T1 - [Draft] Preliminary bedrock geologic map of the South Groveland quadrangle, Massachusetts Y1 - 2005 A1 - Castle, R.O. A1 - Hepburn, J.C. A1 - Joseph P Kopera KW - #BedrockMaps KW - #MGSPub KW - Andover KW - Andover Granite KW - Boxford KW - Boxford formation KW - Clinton-Newbury Fault KW - Fish Brook gneiss KW - Georgetown KW - Groveland KW - Haverhill KW - Methuen KW - Middleton KW - Nashoba terrane KW - North Andover KW - Sharpner's Pond diorite JF - Open-File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - [Draft] Preliminary bedrock geologic map of the Wilmington quadrangle, Massachusetts Y1 - 2005 A1 - Castle, R.O. A1 - Hepburn, J.C. A1 - Joseph P Kopera KW - #BedrockMaps KW - #MGSPub KW - Andover KW - Andover Granite KW - Assabet River Fault KW - Bedford KW - Billerica KW - Billerica Schist KW - Boxford formation KW - Burlington KW - Burlington Mylonite Zone KW - Fish Brook gneiss KW - nashoba KW - North Reading KW - Reading KW - Spencer Brook Fault KW - Tewksbury KW - Waltham Tectonic Melange KW - Wilmington KW - Woburn JF - Open-File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - [Draft] Surficial geology of the Marlborough quadrangle, Massachusetts Y1 - 2004 A1 - Hildreth, C.T. A1 - Byron D Stone KW - #MGSPub KW - #SurficialMaps KW - Ashland KW - Berlin KW - glacial KW - Hopkinton KW - Hudson KW - Malborough KW - Marlborough KW - Northborough KW - outwash KW - Southborough KW - stratified drift KW - surficial KW - Upton KW - Westborough JF - Open-File Report PB - Massachusetts Geological Survey U1 -GIS and metadata forthcoming
U2 -1:24000
ER - TY - MAP T1 - [Draft] Surficial materials map of the Marlborough quadrangle, Massachusetts Y1 - 2004 A1 - Byron D Stone A1 - Hildreth C.T. A1 - Stephen B Mabee KW - #MGSPub KW - #Subsurface KW - #SurficialMaps KW - 3D KW - Ashland KW - Berlin KW - glacial KW - Hopkinton KW - Hudson KW - Malborough KW - Northborough KW - outwash KW - Southborough KW - stratified drift KW - surficial KW - till KW - Westborough AB -This map shows the stacked vertical distribution of nonlithified surficial earth materials within the Marlborough quadrangle. This series of maps shows these deposits as they are vertically arranged in units from bottom to top. Surficial materials include mineral and rock particles in glacial deposits, and mineral, rock, and organic particles in postglacial deposits. Surficial materials also are known in engineering classifications as unconsolidated soils, which include coarse grained soils, fine grained soils, or organic fine grained soils. Surficial materials underlie and are the parent materials of modem pedogenic soils which have developed in them at the land surface. Delineation of the materials is based on surficial geologic mapping (Stone, 1978, Hildreth, 2003, 2004), the identification of glacial meltwater morphosequence deposits, knowledge of the deglaciation history of New England, and examination of borehole logs and water well records. For this set of maps, glacial meltwater deposits are distinguished by their geomorphologic expression, sediment type, and depositional environment. These deposits are further subdivided into a series of related glacial sedimentary facies, which are stacked vertically within each glaciaodeltaic or lake-bottom deposit. Postglacial deposits at the land surface are differentiated by their sediment type and geomorphic expression. The principal surficial materials map shows the distribution of these materials exposed at land surface. The smaller inset maps (maps A-F) show the surface and subsurface distribution of the glacial meltwater deposits , including the distribution of specific sedimentary facies that compose these meltwater deposits. By using each inset map in sequence both the lateral extent and vertical arrangement of the deposits at a particular location can be estimated from bottom to top.
JF - Open-File Report PB - Massachusetts Geological Survey U1 -GIS Files and metadata forthcoming
U2 -1:24000
ER - TY - MAP T1 - [Draft]Preliminary bedrock geologic map of the Reading quadrangle, Massachusetts Y1 - 2005 A1 - Castle, R.O. A1 - Hepburn, J.C. A1 - Joseph P Kopera KW - #BedrockMaps KW - #MGSPub KW - Andover KW - Bloody Bluff Fault KW - Boxford formation KW - Burlington Mylonite Zone KW - Danvers KW - Fish Brook gneiss KW - Lynn KW - Lynnfield KW - Middleton KW - Nashoba terrane KW - North Andover KW - North Reading KW - Peabody KW - Peabody Granite KW - Reading KW - Sharpner's Pond diorite KW - Stoneham KW - Wakefield KW - Waltham Tectonic Melange KW - Woburn JF - Open-File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Fracture characterization map of the Marlborough quadrangle, Massachusetts Y1 - 2006 A1 - Stephen B Mabee A1 - Scott A Salamoff KW - #FractureMaps KW - #MGSPub KW - Ashland KW - Berlin KW - fault KW - fracture KW - fracture trace KW - groundwater KW - Hopkinton KW - Hudson KW - hydrostructural domains KW - joint KW - lineament KW - Malborough KW - Northborough KW - Southborough KW - water resources KW - Westborough JF - Geologic Map PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Onshore-Offshore Surficial Geologic Map of the Newburyport East and Northern Half of the Ipswich Quadrangles, Massachusetts Y1 - 2010 A1 - Hein, C.J. A1 - Fitzgerald, D.M, A1 - Barnhardt, W.A. A1 - Byron D Stone KW - #MGSPub KW - #OnshoreOffshore KW - #SurficialMaps KW - coastal KW - Essex KW - glacial KW - Gloucester KW - Hamilton KW - Ipswich KW - Newburport KW - Newbury KW - Newburyport KW - onshore KW - Plum Island KW - Rowley KW - Salisbury KW - surficial AB - This geologic map shows the distribution of surficial subaerial and subaqueous materials in the Newburyport East and northern half of the Ipswich 7.5' quadrangles (northeast Massachusetts) and the area of the Gulf of Maine immediately offshore, to an approximate depth of 80 m below modern mean sea level (MSL). This map was compiled from the onshore surficial geologic map of Stone et al. (2006) and the offshore surficial mapping of Barnhardt et al. (2009), and includes newly mapped shallow offshore geologic features. Onshore and offshore units are continuous across the shallow- water zone (0-20 m below MSL). The definition of map units is based on lithologic characteristics (grain size, mineralogy and structure), stratigraphic relationships and relative ages, and sedimentologic processes. The map describes the evolution of the surficial geology in terms of the sediment sources, transportation mechanisms, and depositional, post-depositional and modern processes that have acted on the late Quaternary sediments that compose these units. Cross sections are derived from subsurface data compiled from the literature and collected as part of this study. This maps supersedes MGS OFR 2011-01 JF - Geologic Map PB - Massachusetts Geological Survey U1 - Note: this version has been peer reviewed, edited, and supersedes all previously published, open-file, versions of this map (2010) U2 - 1:24000 ER - TY - MAP T1 - Onshore-offshore surficial geologic map of the Provincetown Quadrangle, Barnstable County, Massachusetts Y1 - 2012 A1 - Borrelli, M. A1 - Gontz, A.M. A1 - Wilson, J.R. A1 - Brown, T.L.B. A1 - Norton, A.R. A1 - and G S Geise KW - #MGSPub KW - #OnshoreOffshore KW - #SurficialMaps KW - Cape Cod KW - coastal KW - glacial KW - offshore KW - onshore KW - Provincetown KW - surficial KW - Truro AB - Undergoing Editing and Review. Please contact sbmabee[at]geo[dot]umass[dot]edu for latest version. PB - Massachusetts Geological Survey ER - TY - MAP T1 - Preliminary Bedrock Geologic Map of the area surrounding Shepley's Hill, Towns of Ayer and Devens, Massachusetts Y1 - 2008 A1 - Joseph P Kopera KW - #BedrockMaps KW - #MGSPub KW - army KW - arsenic KW - Ayer KW - ayer granite KW - chelmsford granite KW - Clinton Newbury Fault Zone KW - Devens KW - landfill JF - Open-File Report PB - Massachusetts Geological Survey U2 -1:12000
ER - TY - MAP T1 - Preliminary bedrock geologic map of the Ayer quadrangle, Massachusetts Y1 - 2006 A1 - Joseph P Kopera KW - #BedrockMaps KW - #MGSPub KW - arsenic KW - Ayer KW - ayer granite KW - Berwick formation KW - Boxborough KW - chelmsford granite KW - Clinton-Newbury Fault KW - Devens KW - Fort Devens KW - Groton KW - Harvard KW - Jahns KW - LITTLETON KW - Merrimack Terrane KW - mylonite KW - nashoba KW - Nashua Trough KW - Oakdale formation KW - Shepley's Hill Landfill KW - Shirley KW - tadmuck brook schist KW - Worcester Formation AB -This preliminary version of the Bedrock Map of the Ayer Quadrangle (Kopera, 2006) has been removed pending the release of an updated version in the near future. The above version should be considered outdated. If you would like a copy of this map, please contact Joseph Kopera at jkopera[at]geo[dot]geo[dot] umass[dot]edu
JF - Open-File Report PB - Massachusetts Geological Survey UR - http://www.geo.umass.edu/stategeologist/ U2 -1:24000
ER - TY - MAP T1 - Preliminary Bedrock Geologic Map of the Hudson 7.5' Quadrangle Worcester and Middlesex Counties, Massachusetts Y1 - 2014 A1 - Joseph P Kopera A1 - W.R. Hansen KW - #BedrockMaps KW - #MGSPub KW - acton granite KW - ayer granite KW - Berlin KW - Bolton KW - Boxborough KW - Clinton-Newbury Fault KW - gneiss KW - Harvard KW - Harvard Conglomerate KW - Hudson KW - magnetite KW - Malborough KW - marble KW - migmatite KW - nashoba KW - Stow KW - tadmuck brook schist KW - Vaughn Hills AB - The Hudson quadrangle straddles the Clinton-Newbury Fault Zone (CNFZ), which separates low metamorphic grade Silurian turbiditic metasediments and Devonian plutons of the Nashua sub-belt (Robinson and Goldsmith, 1991) of the Merrimack Terrane to the northwest from the high-grade, migmatitic Cambro- Ordovician arc-complex of the Nashoba Terrane (Walsh et al., 2011; Loan 2011). This general area comprises the suture between the Gander and Avalon composite terranes of the Northern Appalachians (cf. Hibbard et al., 2006). Metasedimentary rocks of the Merrimack Terrane are generally poorly exposed, with intrusives (Day, Dayp, SDgdt) and the Clinton-Newbury Fault zone and associated rocks (Ot) forming a prominent northeast trending ridge (Oak Hill in the town of Harvard) marking the eastern bordering slope of the Worcester Plateau (Emerson, 1917, p. 16). Elevation and local topographic relief gradually decreases and glacial cover increases to the east-southeast across the strike of the Nashoba Formation, which, locally, forms low-relief NE-trending strike-parallel ridges. These are cut by dramatic cross-strike cliffs and glacial spillway gorges developed along cross-strike joints and brittle faults, most notably on the western slopes of Rattlesnake Hill, southern slope of Powder House Hill and in Camp Resolute in Bolton in the west-central portion of the quadrangle, and the southern slope of the hill along the west side of Codman Hill Road in Harvard in the north-central portion of the quadrangle. The migmatitic ortho- and paragneisses, schists and associated metavolcanic rocks of the Nashoba Formation (_Sn) form a northeast striking belt underlying the southern two-thirds of the quadrangle. These are intruded by a variety of presumed Ordovician to Silurian intermediate intrusives (OSd, OSaqd) and Devonian or younger tonalites to granites (Dan, Danp, Dac). JF - Open File Report PB - Massachusetts Geological Survey U1 - Note: This map supersedes "Preliminary bedrock geologic map of the Hudson quadrangle, Massachusetts", MGS map published in 2005 Report accompanies map-- be sure to download both! ER - TY - MAP T1 - Preliminary bedrock geologic map of the Hudson quadrangle, Massachusetts Y1 - 2005 A1 - Joseph P Kopera A1 - Hansen, W.R. KW - #BedrockMaps KW - #MGSPub KW - acton granite KW - ayer granite KW - Berlin KW - Bolton KW - Boxborough KW - Clinton-Newbury Fault KW - gneiss KW - Harvard KW - Harvard Conglomerate KW - Hudson KW - magnetite KW - Malborough KW - marble KW - migmatite KW - nashoba KW - Stow KW - tadmuck brook schist KW - Vaughn Hills AB - This map has been superseded by MGS OFR 14-01: Preliminary Bedrock Geologic Map of the Hudson 7.5' Quadrangle Worcester and Middlesex Counties, Massachusetts This map is an interim update to W.R. Hansen's 1956 Bedrock Geology of the Hudson and Maynard 7.5' quadrangles (USGS Bulletin 1038). This draft version of the Bedrock Map of the Hudson Quadrangle (Kopera, 2005) has been removed pending the future release of an updated version. The above version should be considered outdated. If you would like a copy of this map, please contact Joseph Kopera at jkopera[at]geo[dot]geo[dot]umass[dot]edu JF - Open-File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Preliminary bedrock geologic Map of the Milford quadrangle Y1 - 2007 A1 - Joseph P Kopera A1 - Shaw, C.E. A1 - Fernandez, M. KW - #BedrockMaps KW - #FractureMaps KW - #MGSPub KW - acadian KW - alaskite KW - alleghenian KW - amphibolite KW - antiform KW - Ashland KW - avalon KW - bedrock map KW - blackstone KW - fracture KW - GEOLOGIC MAP KW - gneiss KW - granite KW - Holliston KW - hopedale quartzite KW - Hopkinton KW - ironstone diorite KW - joints KW - l-tectonite KW - Mendon KW - MGS Publication KW - Milford KW - neoproterozoic KW - Northbridge KW - proterozoic KW - quarries KW - quartzite KW - Upton KW - Westborough AB -Fracture Characterization Map is included as sheets 2 and 3. Water Resources data included as sheet 4.
GIS and metadata forthcoming
JF - Open-File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Preliminary bedrock geologic map of the Orange 7.5' quadrangle, Massachusetts (including portions of the Millers Falls and Athol 7.5' quadrangles) Y1 - 2008 A1 - Robinson, P. A1 - Fernandez, M. KW - #BedrockMaps KW - #MGSPub KW - AMMONOOSUC KW - Athol KW - ATHOL FAULT KW - BEARS DEN FAULT KW - BEDROCK KW - BRONSON HILL KW - ERVING KW - GEOLOGIC MAP KW - GEOLOGY KW - LITTLETON KW - map KW - METAMORPHIC KW - MGS Publication KW - New Salem KW - Orange KW - PELHAM DOME KW - Petersham KW - Shutesbury KW - Warwick KW - Wendell AB - The culmination of over 50 years of mapping and geologic investigation by U-Mass professor Peter Robinson and his students, this map details the structure and stratigraphy of the Oliverean gneiss domes and the continuation of the Bronson Hill sequence south into central Massachusetts. JF - Open File Report PB - Massachusetts Geological Survey CY - Amherst, MA U2 -1:24000
ER - TY - MAP T1 - Preliminary bedrock geologic Map of the Palmer quadrangle, Massachusetts Y1 - 2008 A1 - Matthew A Massey KW - #BedrockMaps KW - #MGSPub KW - AMMONOOSUC KW - Belchertown KW - Belchertown pluton KW - Brimfield KW - Clough KW - Monson KW - Palmer KW - Ware KW - Warren JF - Open-File Report PB - Massachusetts Geological Survey U1 -GIS and metadata forthcoming.
U2 -1:24000
ER - TY - MAP T1 - Preliminary bedrock geologic Map of the Webster quadrangle, Massachusetts Y1 - 2009 A1 - Patrick J Barosh KW - #BedrockMaps KW - #MGSPub KW - ayer granite KW - Charlton KW - Dudley KW - Eastford granite KW - Nashua Trough KW - Oakdale Quartzite KW - Oxford KW - Paxton Formation KW - Paxton Group KW - Plainville KW - Plainville Formation KW - Southbridge KW - Webster KW - Worcester Formation JF - Open-File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Preliminary bedrock geologic map of the Westford quadrangle, Massachusetts Y1 - 2009 A1 - Joseph P Kopera A1 - D.C. Alvord A1 - Richard H Jahns A1 - M.E. Willard A1 - W.S. White KW - #BedrockMaps KW - #MGSPub KW - Acton KW - amphibolite KW - ayer granite KW - Berwick formation KW - Boxborough KW - calc-silicates KW - Carlisle KW - Chelmsford KW - chelmsford granite KW - Clinton-Newbury Fault KW - Concord KW - diorite KW - gneiss KW - Groton KW - LITTLETON KW - magnetite KW - marble KW - migmatite KW - Nashoba Formation KW - phyllonite KW - tadmuck brook schist KW - Tyngsborough KW - Westford AB - Bedrock Geologic Map contains brittle fracture data Mapping still in progress. For interim fracture database, please contact Joe Kopera JF - Open-File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Preliminary bedrock Geology of the Northern Portion of the Blackstone quadrangle, Massachusetts Y1 - 2008 A1 - Joseph P Kopera A1 - Shaw, C.J. KW - #BedrockMaps KW - #MGSPub KW - acadian KW - alleghenian KW - avalon KW - bedrock map KW - Bellingham KW - blackstone KW - GEOLOGIC MAP KW - gneiss KW - granite KW - hopedale quartzite KW - ironstone diorite KW - Mendon KW - MGS Publication KW - Milford KW - Millville KW - neoproterozoic KW - Northbridge KW - proterozoic KW - quarries KW - Upton KW - Uxbridge AB -This map is an interim progress report of mapping currently underway.
JF - Open-File Report PB - Massachusetts Geological Survey UR - http://www.geo.umass.edu/stategeologist/ U2 -1:24000
ER - TY - MAP T1 - Preliminary fracture characterization map of the Ayer quadrangle, Massachusetts Y1 - 2006 A1 - Joseph P Kopera A1 - Stephen B Mabee A1 - Powers, D.C. KW - #FractureMaps KW - #MGSPub KW - Ayer KW - ayer granite KW - Boxborough KW - chelmsford granite KW - Devens KW - fault KW - Fort Devens KW - fracture KW - fracture trace KW - Groton KW - Harvard KW - hydrostructural domain KW - joint KW - lineament KW - LITTLETON KW - Shirley KW - water resources AB - This preliminary version of the Fracture Characterization Map of the Ayer Quadrangle (Kopera, 2006) has been removed pending the release of an updated version of the underlying bedrock geologic map in the near future. The above version should be considered outdated. If you would like a copy of the outdated map, please contact Joseph Kopera at jkopera[at]geo[dot]geo[dot]umass[dot]edu JF - Open-File Report PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Progress map of the onshore-offshore surficial geologic map of the North Truro quadrangle, Barnstable County, Massachusetts Y1 - 0 A1 - Borrelli, M. A1 - Gontz, A.M. A1 - Smith, T.L. A1 - Wilson, J.R. A1 - Shumchenia, E.J. A1 - and G S Geise KW - #MGSPub KW - #OnshoreOffshore KW - #SurficialMaps KW - Cape Cod KW - dunes KW - glacial KW - offshore KW - onshore KW - onshore-offshore KW - Pleistocene KW - surficial KW - Truro AB - Map undergoing editing and review. Please contact sbmabee@geo.umass.edu for a copy. PB - Massachusetts Geological Survey U2 - 1:24000 ER - TY - MAP T1 - Progress map of the preliminary bedrock geologic map of the Billerica quadrangle, Massachusetts Y1 - 2011 A1 - Matthew A Massey KW - #BedrockMaps KW - #FractureMaps KW - #MGSPub KW - Bedford KW - Berwick formation KW - Billerica KW - Billerica Schist KW - Boxford formation KW - Carlisle KW - Chelmsford KW - Clinton-Newbury Fault Zone KW - Concord KW - fracture KW - gneiss KW - joints KW - Lowell KW - magnetite KW - migmatite KW - nashoba KW - schist KW - Spencer Brook Fault KW - tadmuck brook schist KW - Tewksbury AB - This map also contains brittle fracture data as part of the GIS files. This map is a progress report of bedrock geologic mapping currently underway in the Billerica quadrangle. It is a compilation of ongoing field mapping (Massey, this study) and previously published work in the area (Alvord, 1973, 1975; Jahns et al.1959). The Billerica quadrangle is located approximately 20 miles northwest of Boston along Route 3, just south of Lowell, in northeastern Massachusetts, encompassing the northwestern most Nashoba terrane and it’s boundary with the Merrimack belt (Figure 1). In the Billerica quadrangle, the Merrimack Belt consists of limited exposures of highly strained metasediments, or possibly orthoschist derived from reconstituted igne- ous protolith. The Clinton-Newbury fault zone separates the Merrimack Belt from multiply deformed, polymetamorphic biotite gneisses, migmatites, and amphibolites of the Nashoba terrane. PB - Massachusetts Geological Survey U2 - 1:24000 ER - TY - MAP T1 - Progress report of bedrock geologic mapping of the Lowell quadrangle, Massachusetts Y1 - 2010 A1 - Richard H Jahns A1 - Joseph P Kopera KW - #BedrockMaps KW - #MGSPub KW - Berwick formation KW - Chelmsford KW - Clinton-Newbury Fault KW - Dracut KW - Dracut diorite KW - Dracut gabbro KW - Dracut pluton KW - gabbro KW - Jahns KW - Lowell KW - Methuen KW - nashoba KW - Nashoba Formation KW - Tewksbury KW - Tyngsborough AB -Maps in Progress are not distributed to the public. If you would like to see a copy of this map, please contact Joseph Kopera at jkopera[at]geo[dot]geo[dot]umass[dot]edu
JF - Progress Map PB - Massachusetts Geological Survey U2 -1:24000
ER - TY - MAP T1 - Prototype three-dimensional surficial materials map of the Marlborough quadrangle, Massachusetts Y1 - 0 A1 - Steven A Nathan A1 - Stephen B Mabee KW - #MGSPubs KW - #SurficialMaps KW - 3D KW - Ashland KW - Berlin KW - glacial KW - Hopkinton KW - Hudson KW - Malborough KW - Northborough KW - Southborough KW - subsurface KW - surface KW - surficial KW - Westborough AB -This map integrates well-drilling data with surficial geologic mapping and bedrock geology to produce a true three-dimensional model of the subsurface conditions within the Marlborough quadrangle, Massachusetts. The first component of this model is a map depicting a three-dimensional block diagram of the stratigraphic units that overlie the bedrock surface. The map also presents three-dimensional depictions of the individual stratigraphic units, their aerial extent and volumes.
In addition to the map, the supporting grid files, database and documentation for the three-dimensional model are provided.
This three-dimensional model of the subsurface stratigraphy of the Marlborough quadrangle provides a tool to visualize and explore the relationships of the subsurface units to one another, to the underlying bedrock, and to the water bearing fractures within the bedrock.
There are three immediate benefits of this three-dimensional model:
Interim digital compilation of the published surficial geology of the Assawompsett Pond, Blue Hills, Bridgewater, Brockton, Duxbury, Hanover, Scituate, Norwood, Taunton, and Whitman 7.5' quadrangles.
This will be superseded by the publication of USGS OFR 2006-1260-H
JF - geologic Map PB - Massachusetts Geological Survey U2 -1:50,000
ER - TY - MAP T1 - USGS Surficial Geologic Map Compilations (OFR 2006-1260) Y1 - 0 KW - #MGSPub KW - #SurficialMaps KW - surficial geology KW - USGS AB - Since 2006, the USGS has been releasing compilations of updated surficial geology compilations for Massachusetts under OFR2006-1260 (http://pubs.usgs.gov/of/2006/1260/). Older, more detailed surficial geologic maps (GQs, etc...) for Massachusetts can be downloaded from the National Geologic Map Database (http://ngmdb.usgs.gov) and the USGS Publications Warehouse (http://pubs.usgs.gov) Compilation areas published under OFR2006-1260 are:A report on the commerical granites of New England, their properties (jointing, rift, grain, etc...) and descriptions of active quarries in the towns of Acton, Becket, Braintree, Brockton, Cohasset, Dartmouth, Fall River, Fitchburg, Groton, Hingham, Leominster, Lynn, Lynnfield, Milford, Milton, Monson, New Bedford, Northbridge, Otis, Peabody, Pelham, quarries, quarry, Quincy, Revere, Rockport, Stoughton, Townsend, Uxbridge, Westford, and Wrentham.
KEYWORDS: granite, joint, quarry, quarries
Widely scattered terrestrial deposits of Cretaceous or Tertiary age and extensive nearshore and fluvial Coastal Plain deposits now largely beneath the sea indicate that the New England region has been above sea level during and since the Late Cretaceous. Estimates of rates of erosion based on sediment load in rivers and on volume of sediments in the Coastal Plain suggest that if the New England highlands had not been uplifted in the Miocene, the area would now be largely a lowland. If the estimated rates of erosion and uplift are of the right order of magnitude, then it is extremely unlikely that any part of the present landscape dates back before Miocene time. The only exception would be lowlands eroded in the early Mesozoic, later buried beneath Mesozoic and Cenozoic deposits, and exhumed by stream and glacial erosion during the later Cenozoic. Many of the rocks in the New England highlands are similar to those that underlie the Piedmont province in the central and southern Appalachians, where the relief over large areas is much less than in the highlands of New England. These comparisons suggest that the New England highlands have been upwarped in late Cenozoic time. The uplift took place in the Miocene and may have continued into the Quaternary. The New England landscape is primarily controlled by the underlying bedrock. Erosion and deposition during the Quaternary, related in large part to glaciation, have produced only minor changes in drainage and in topography. Shale and graywacke of Ordovician, Cambrian, and Proterozoic age forming the Taconic highlands, and akalic plutonic rocks of Mesozoic age are all highland makers. Sandstone and shale of Jurassic and Triassic age, similar rocks of Carboniferous age, and dolomite, limestone, and shale of Ordovician and Cambrian age commonly underlie lowlands. High-grade metapelites are more resistant than similar schists of low metamorphic grade and form the highest mountains in New England. Feldspathic rocks tend to form lowlands. Alkalic plutonic rocks of Mesozoic age underlie a large area in the White Mountains of New Hampshire and doubtless are a factor in their location and relief. Where the major streams flow across the regional structure of the bedrock, the location of the crossings probably is related to some other characteristic of the bedrock, such as joints or cross faults. The course of the Connecticut River is the result of the adjustment of the drainage to the bedrock geology during a long period of time. There is no ready explanation why many of the large rivers do not cross areas of calcalkalic plutonic rock, but rather take a longer course around such areas, which tend to include segments of the divide between the streams. The presence of coarse clastic materials in Miocene rocks of the emerged Coastal Plain of the Middle Atlantic States suggests uplift of the adjacent Piedmont and of the Adirondack Mountains at that time. The Miocene rocks of the submerged Coastal Plain in the Gulf of Maine and south of New England are fine grained and contain only small amounts of fluvial gravel. Perhaps the coarse clastic materials shed by the New England highlands in late Cenozoic time are buried by or incorporated in the Pleistocene glacial deposits.
JF - USGS Professional Paper PB - U.S. Geological Survey CY - Reston, VA UR - https://pubs.er.usgs.gov/publication/pp1208 ER - TY - RPRT T1 - A Guide to On-Line Geological Information and Publications for Use in GSHP Site Characterization Y1 - 2000 A1 - Kevin Rafferty KW - #Geothermal KW - #GeothermalHomeownerResources KW - geothermal KW - ground source heat pumps KW - GSHP AB - One of the first steps in the consideration of a GSHP system is a characterization of the site in terms of geology and groundwater availability. Information concerning aquifer (or aquifers) available at the site, their ability to produce water, depth to water, geology, depth to bedrock and the nature of the soil and rock (hydraulic and thermal properties) are key issues. This information guides the designer in the selection of the type of GSHP system to be used and in the design of the system. The ground source industry has not taken full advantage of available geological information resources in the past. This document is an effort to introduce GSHP designers to some of these information sources and the nature of the data that is available. A special emphasis has been placed on Internet based resources operated by government agencies--primarily the USGS and state geological surveys. The following section provides some background information on the maps and other information sources in general. This is followed by summaries of information available for the most active GSHP states. PB - Geo-Heat Center, Oregon Institute of Geology CY - Klamath Falls, Oregon UR - http://geoheat.oit.edu/otl/guidegshp.pdf ER - TY - RPRT T1 - Hydrogeologic investigation of the west Charlemont aquifer, Charlemont, Massachusetts Y1 - 2007 A1 - Stephen B Mabee A1 - Flemig, B. A1 - David F Boutt KW - #Hydro KW - #MGSPub KW - #Reports KW - #WaterResources KW - aquifer KW - Charlemont KW - controlled release KW - dam KW - Deerfield River KW - hydro KW - hydrogeology KW - power AB -The University of Massachusetts Department of Geosciences and Office of the Massachusetts State Geologist were asked by the Franklin Regional Council of Governments to make an assessment of the extent, thickness and hydraulic properties of the West Charlemont aquifer located in valley fill deposits along the Deerfield River in the Town of Charlemont, Massachusetts. Previous work by Gay et al. (1974) mapped these fill deposits as a medium yield aquifer (51 gallons per minute, gpm, to 200 gpm). The purpose of this investigation is to evaluate further the potential of this medium yield aquifer as a viable groundwater resource for the Town of Charlemont. Results from six new seismic refraction surveys, three new boreholes, analysis of grain size distribution curves and a review of previous borehole logs and geophysical surveys were compiled to build a conceptual 3-dimensional visualization of the aquifer system. These data were used to make a first-order estimate of potential yield.
PB - Massachusetts Geological Survey UR - http://www.geo.umass.edu/stategeologist/Products/reports/CharlemontFinalReport.pdf ER - TY - RPRT T1 - An Information Survival Kit for the prospective geothermal heat pump owner Y1 - 2001 KW - #Geothermal KW - #GeothermalHomeownerResources KW - alternative energy KW - geothermal KW - green energy KW - ground source heat pumps KW - GSHP KW - heat pump KW - renewable energy KW - renewables KW - standing column AB - Geothermal heat pumps (GHPs), although not a new technology, remain a small (but growing) player in the residential heating/cooling sector. Although somewhat higher in first cost, this technology can, in the right application, quickly repay this cost premium through savings in energy costs. Despite all the positive publicity on GHPs, they are not for everyone. Like any other heating and cooling system, GHPs tend to fit well in certain circumstances and poorly in others. Familiarizing yourself with the factors that effect the feasibility of GHPs will assist you in making an informed decision as to their suitability for your home. It is the intention of this package to provide that information and to address some of the commonly asked questions regarding the technology. Please feel free to contact us if you have questions not covered in this package. PB - Geo-Heat Center, Oregon Institute of Technology CY - Klamath Falls, OR UR - http://geoheat.oit.edu/ghp/survival.pdf ER - TY - RPRT T1 - A microfossil evaluation of sediment deposits on the continental shelf, Merrimack embayment, New England Y1 - 2007 A1 - Steven A Nathan A1 - Leckie, R.M. A1 - Stephen B Mabee KW - #MGSPubs KW - #Reports KW - Foraminifera KW - fossils KW - Merrimack Delta KW - Merrimack Embayment KW - Merrimack River KW - microfossils KW - offshore KW - sedimentology AB - Final Report to Minerals Management Service, U.S. Department of Interior 60 pages. contact sbmabee @geo.umass.edu PB - Massachusetts Geological Survey ER - TY - RPRT T1 - Origin of the Rocks at Bishop and Clerks Shoal and Collier Ledge, Nantucket Sound, Massachusetts – Field Report Y1 - 2005 A1 - Stephen B Mabee KW - #MGSPub KW - #Reports KW - Bishop and Clerks KW - boulders KW - CapeWind KW - Collier Ledge KW - glacial KW - lighthouse KW - Nantucket Sound AB - Submitted to the U.S. Department of Interior and Minerals Management Service and Massachusetts Highway Department 34 pages contact sbmabee @geo.umass.edu PB - Massachusetts Geological Survey ER - TY - RPRT T1 - Origin of the rocks at Bishop and Clerks shoal and Collier Ledge, Nantucket Sound, Massachusetts: Field report Y1 - 2004 A1 - Stephen B Mabee KW - #MGSPub KW - #MGSPubs KW - #Reports KW - Bishop and Clerks KW - Cape Wind KW - Collier Ledge KW - erratics KW - lighthouse KW - Nantucket Sound KW - shoal AB - The Office of the Massachusetts State Geologist was asked to make a determination of the origin of the rocks at the Bishop and Clerks Shoal and Collier Ledge in Nantucket Sound, Massachusetts. The objective was to determine if the rocks at these two locations were natural features deposited by the glaciers or carried by barge and deposited by man. A field visit was conducted on September 15, 2004. This report summarizes the findings and conclusions. Prepared for the Massachusetts Highway Department and Minerals Management Service. PB - Office of the Massachusetts State Geologist CY - Amherst, MA UR - http://www.geo.umass.edu/stategeologist/Products/reports/BCFieldReport.pdf ER - TY - RPRT T1 - Preliminary compilation of the bedrock geology of the land area of the Boston 2 degree sheet, Massachusetts, Connecticut, Rhode Island and New Hampshire Y1 - 1977 A1 - Patrick J Barosh A1 - Fahey, Richard J. A1 - Pease, Maurice Henry, Jr. KW - #MassGeology KW - #MassGeologyMap KW - bedrock geology KW - Connecticut KW - eastern MA KW - GEOLOGY KW - map KW - massachusetts KW - New Hampshire KW - Rhode Island JF - USGS Open File Report UR - http://pubs.er.usgs.gov/publication/ofr77285 U1 -An alternative interpretation of the geology of the eastern part of the state.
ER - TY - RPRT T1 - Preliminary field report on the November 13th-14th, 2011 landslide near Steam Mill Road, Deerfield, Massachusetts Y1 - 2011 A1 - Joseph P Kopera A1 - Stephen B Mabee KW - #Deerfield KW - #Landslides KW - #MGSPub KW - #NaturalHazards KW - #Reports KW - flooding KW - hazards KW - Irene KW - landslide KW - mudslide KW - natural hazards KW - swamp AB - On November 13th and 14th, 2011, residents and business owners in the area of Wapping Road in Deerfield, Massachusetts, began to notice light-gray, clay-rich mud appearing in the streams and wetlands east of State Route 5/10. The mud quickly clogged culverts under Wapping Road, Route 5/10, and the Pan Am Southern Railway tracks, partially filled in wetlands on both sides of Route 5/10, and partially filled in drainage ditches upgradient of these wetlands. This resulted in localized flooding of property along the east side of Route 5/10. Prepared for the Deerfield Board of Selectman and Board of Public Health 19 pages. A NEPR radio interview with Joe Kopera about the landslide can be found at http://nepr.net/news/2011/12/02/fallout-2011s-extreme-weather-landslides-ice-jams/. JF - Open File Report PB - Massachusetts Geological Survey UR - http://www.geo.umass.edu/stategeologist/Products/reports/Deerfield_LS_Report_final.pdf ER - TY - RPRT T1 - Preliminary field report on the Route 2 landslides of tropical storm Irene, August 28, 2011 Y1 - 2011 A1 - Stephen B Mabee A1 - Joseph P Kopera KW - #Landslides KW - #MGSPub KW - #NaturalHazards KW - #Reports KW - Cold River KW - hazards KW - Irene KW - landslide KW - Mohawk State Forest KW - natural hazards KW - Rt 2 KW - Savoy AB - The Massachusetts Geological Survey accompanied Massachusetts Department of Transportation personnel in the field on Tuesday, September 6, 2011, to observe the landslide and flooding damage along the Route 2 corridor caused by Hurricane, which struck the area on August 28, 2011. The purpose of the visit was to: 1) identify the type of slides that occurred; 2) estimate the dimensions and volume of material moved; 2) estimate the geological and environmental conditions leading to the slope failures; and, 4) determine the propensity for future occurrence. Four landslides were observed. Slide 1 is immediately east of the confluence of Trout Brook with the Cold River and Slides 2, 3, and 4 are clustered together on a north- facing slope about 1850 feet east of the confluence of Black Brook with the Cold River. Report prepared for Massachusetts Department of Transportation. PB - Massachusetts Geological Survey UR - http://www.geo.umass.edu/stategeologist/Products/reports/Rt2_Irene_FieldReport.pdf ER - TY - RPRT T1 - Preliminary Geology and Assessment of Groundwater Potential at Cresta de Sacramento, Palpa, Peru: Field Report – July 2002 Y1 - 2003 A1 - Donald U Wise A1 - Stephen B Mabee A1 - Hardcastle, K.C. KW - #StaffPubs KW - aquifer KW - Atacama Desert KW - groundwater KW - lineament KW - Nazca lines KW - Peru AB -31 pages contact sbmabee @geo.umass.edu
ER - TY - RPRT T1 - Report to the government of the British Virgin Islands on the status of beach erosion and water pollution Y1 - 1994 A1 - Belt, E.S. A1 - Davis, R.A. A1 - Stephen B Mabee KW - #StaffPubs KW - beach erosion KW - British Virgin Islands KW - erosion KW - pollution KW - Virgin Islands KW - water pollution ER - TY - COMP T1 - Geograph MA Y1 - 0 AB -Do you know which state assembly district you are in? What kind of rock are you sitting on? Which school district is this house in? Where is the closest railroad? Are you in a floodable zone?
Geograph MA is the Massachusetts version of the first GIS (geographical information system) for the iPhone. With its 48 (and counting) layers of information, it will help you understand your surroundings and become aware of the geography around you.
JF - iPhone App PB - Integrity Logic UR - http://www.integrity-logic.com/GeographMA U1 -Massachusetts Geology/Geography on your iPhone!
ER - TY - THES T1 - Lineaments; their value in assessing groundwater availability and quality in bedrock aquifers of glaciated metamorphic terrains; a case study Y1 - 1992 A1 - Stephen B Mabee KW - #StaffPubs KW - aerial photography; KW - aquifers; KW - bedrock; KW - case studies; KW - fractures; KW - Georgetown Maine; KW - ground water; KW - Hydrogeology; 21 KW - lineaments; KW - Maine; KW - outcrops; KW - Sagadahoc County Maine; KW - SLAR; KW - Structural geology; 16 KW - terrains; KW - United States; KW - water quality; KW - water wells; KW - wells; CY - United States UR - http://silk.library.umass.edu/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=geh&AN=1993-003224&site=ehost-live&scope=site N1 - Accession Number: 1993-003224; Educational Institutions: University of Massachusetts at Amherst : Amherst, MA, United States; Language: English; Collation: 592; Type of Degree: Doctoral; Publication Types: Thesis or dissertation; Updated Code: 1993; Reviewed Item: Monograph ER - TY - Generic T1 - Active mines and mineral plants in the US Y1 - KW - #MapsDataPublications KW - #MineralResources KW - active KW - collecting KW - dimension stone KW - economic geology KW - gold KW - lead KW - minerals KW - mines KW - quarries KW - sand and gravel KW - sand pits KW - silver AB - Mine plants and operations for commodities monitored by the National Minerals Information Center of the USGS. Operations included are those considered active in 2003 and surveyed by the USGS. PB - USGS UR - http://tin.er.usgs.gov/mineplant/ ER - TY - Generic T1 - The American Geological Institute - News and Resources for geoscientists and teachers Y1 - KW - #EducationalResources KW - #ProfessionalDevelopment KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - GEOLOGY KW - K-12 KW - lesson plans KW - news KW - schools KW - standards KW - teacher resources KW - teaching PB - AGI UR - http://www.agiweb.org/index.html ER - TY - Generic T1 - Beneski Museum of Natural History at Amherst College (Amherst, MA) Y1 - KW - #EducationalResources KW - #Museums KW - dinosaurs KW - field trips KW - footprints KW - fossils KW - Massachusetts Geology KW - mesozoic KW - minerals KW - museums PB - Amherst College UR - https://www.amherst.edu/museums/naturalhistory ER - TY - Generic T1 - Berkshire Museum (Pittsfield, MA) Y1 - KW - #EducationalResources KW - #Museums KW - dinosaurs KW - field trips KW - footprints KW - fossils KW - Massachusetts Geology KW - minerals KW - museums KW - natural history UR - http://www.berkshiremuseum.org/ ER - TY - Generic T1 - Boston Rocks! Y1 - 0 A1 - Deb Allen A1 - Mark Goldner KW - #EducationalResources KW - #Fieldtrips KW - #MassGeology KW - Boston KW - Boston geology AB - An exploration into the geology, land use and engineering of the Boston area by teachers at the Brookline Public Schools UR - http://bostongeology.com/index.htm ER - TY - Generic T1 - Boston Subsurface Project at Tufts University Y1 - 0 KW - #MapsDataPublications KW - #Subsurface KW - aquifer KW - Big Dig KW - boreholes KW - boring logs KW - Boston KW - boston blue clay KW - central artery project KW - glacial KW - ground source heat pumps KW - groundwater KW - GSHP KW - subsurface KW - surficial KW - water resources KW - well KW - well completion reports KW - wells AB -A web-searchable database / visualization tool for all of the borings associated with the central artery project / "Big Dig" in Boston.
PB - Tufts University UR - http://bostonsoil.atech.tufts.edu/ ER - TY - Generic T1 - CalTopo - Backcountry topographic maps Y1 - 0 KW - #MapsDataPublications KW - #Topo KW - quadrangles KW - topographic maps KW - USGS AB - CalTopo contains topographic map coverage and downloadable topographic maps for all of the conterminous U.S. It also has a variety of web-based tools for calculating distance, area, topographic profiles, etc... PB - Caltopo UR - http://caltopo.com/ ER - TY - Generic T1 - Digital Library for Earth Systems Education Y1 - KW - #EducationalResources KW - #LessonPlans KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching AB - The Digital Library for Earth System Education (DLESE) is a distributed community effort involving educators, students, and scientists working together to improve the quality, quantity, and efficiency of teaching and learning about the Earth system at all levels. PB - NSF, NCARL UR - http://www.dlese.org/library/index.jsp ER - TY - Generic T1 - Digital Versions of Older NEIGC Guidebooks (1920-1989) Y1 - 0 KW - #EducationalResources KW - #Fieldtrips KW - #LegacyPublications KW - #MapsDataPublications KW - field trip KW - geologic history KW - guide KW - guidebook KW - historic KW - New England KW - sites KW - visit AB - The UNH Library has digitized guidebooks form the New England Intercollegiate Geological Conference (NEIGC). These publications are one of the best resources for learning about New England geology, and in many cases, is the only place where studies on the geology of many areas are published. PB - UNH UR - http://www.library.unh.edu/digital/category/science-technology ER - TY - Generic T1 - Dinosaurs, Dunes, and Drifting Continents: the Geohistory of the Connecticut Valley Y1 - 0 KW - #ConnecticutValley KW - #EducationalResources KW - #MassGeology KW - #MassGeologyBooks KW - book KW - clay KW - Connecticut Valley KW - dinosaurs KW - field trip guide KW - footprints KW - fossils KW - geologic history KW - glaciers KW - hitchcock KW - lake KW - mesozoic KW - New England KW - site KW - varves KW - western Massachusetts AB - Written by local geology expert Richard Little, this book is a great resource for the geologic layperson interested in the geologist history of the Connecticut Valley: from its formation during the rifting of Pangea through the modification of the landscape by glaciers during the most recent ice age. PB - Earthview LLC SN - 9616520-7-1 UR - http://www.earthview.pair.com/publications.html ER - TY - Generic T1 - The Dynamic Digital Map of New England by Chris Condit (U-Mass, Amherst) Y1 - KW - #ConnecticutValley KW - #EducationalResources KW - #Fieldtrips KW - #MassGeology KW - #MassGeologyBooks KW - book KW - field trip guide KW - geologic history KW - guidebook KW - online KW - site KW - virtual AB - This program presents four thematic maps of Massachusetts, in five overlapping segments, including the State Geologic Map. It also contains maps of four more limited areas that include six geologic field trips, with field trip routes and stops delineated on the maps and linked to Field Guides describing the geology seen at each stop. Linked to the maps and guide articles are 330 images, many oblique aerial photos taken by Chris Condit, used to illustrate the geology and scenic nature of this region. PB - U-Mass Geosciences UR - http://ddm.geo.umass.edu/ddm-ne/index.html ER - TY - Generic T1 - Earth Science Educational Resources (from AGI) Y1 - KW - #EducationalResources KW - #SubjectResources KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching AB - AGI Education offers an exciting array of cutting-edge products and services for K-12 educators: including NSF-funded curricula, high-definition videos, classroom activities, teacher professional development, and online resources. Check back often to see what's new from AGI Education! PB - AGI UR - http://www.agiweb.org/education/index.html ER - TY - Generic T1 - Earth Science Lesson Plans (from the Maine Geologic Survey) Y1 - KW - #EducationalResources KW - #LessonPlans KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching AB - Specific to Maine, but has great resources for any Earth Science teacher in New England PB - Maine Geological Survey UR - http://maine.gov/doc/nrimc/mgs/education/lessons/index.htm ER - TY - Generic T1 - Earthlearningidea Y1 - KW - #EducationalResources KW - #LessonPlans KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching AB - Innovative, Earth-related teaching ideas - A new earth-science related classroom activity is posted every week. UR - http://earthlearningidea.blogspot.com/ ER - TY - Generic T1 - Education and Teacher Resources -K-12 lesson plans and resources from the Geological Society of America Y1 - KW - #EducationalResources KW - #LessonPlans KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching PB - Geological Society of America UR - http://www.geosociety.org/educate/ ER - TY - Generic T1 - Educational Resources for K-16 Y1 - KW - #EducationalResources KW - #LessonPlans KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching AB - Curricula content and resources for K-16 Earth Science teachers. PB - Kentucky Geological Survey UR - http://www.uky.edu/KGS/education/ ER - TY - Generic T1 - Exploring the Berkshire Hills: A Guide to Geology and Early Industry in the Upper Housatonic Watershed Y1 - 0 KW - #ConnecticutValley KW - #EducationalResources KW - #MassGeology KW - #MassGeologyBooks KW - Berkshire KW - book KW - clay KW - dinosaurs KW - field trip guide KW - footprints KW - fossils KW - geologic history KW - glaciers KW - hilltown KW - hitchcock KW - housatonic KW - industry KW - lake KW - mesozoic KW - nNew England KW - site KW - valley KW - varves KW - western Massachusetts AB - After introductory chapters on Berkshire geology, Author Ed Kirby takes you to some of the most scenic and interesting sites throughout the Berkshires of Massachusetts, Connecticut, and New York. As you take the 25 field tours, which include roadside geology, hikes and short walks, you gain field experience with local geology and also appreciate the role geology played in the industrial and historical development of the region. With some humor and excellent illustrations, Ed presents the making of rocks and landscape, the workings of blast furnaces, localities of iron ore, glass sand, and clay. Quotes and stories from Longfellow, Melville, Hawthorne, and Wharton are interspersed with descriptions of unconformities, great faults, waterfalls, and mountaintop vistas. PB - Earthview LLC SN - 0-9616520-4-7 UR - http://www.earthview.pair.com/publications.html ER - TY - Generic T1 - Fact Sheets From the Association of American State Geologists Y1 - KW - #EducationalResources KW - #FactSheets KW - climate change KW - creationism KW - evolution KW - fracking KW - global warming KW - legislation KW - policy KW - position statement KW - public health KW - science AB - Position statements from the Geological Society of America on a Variety of issues. These represent the general consensus of the State Geologic Surveys, and the general geologic community, on these issues. UR - http://www.stategeologists.org/position_papers.php ER - TY - Generic T1 - Federal Emergency Management Agency Y1 - 0 KW - earthquakes KW - flooding KW - landslides KW - massachusetts KW - natural hazards KW - New England UR - http://www.fema.gov/ ER - TY - Generic T1 - Geologic Fieldtrip Guidebook database for North America - (AGI) Y1 - 0 KW - #EducationalResources KW - #Fieldtrips KW - field trips KW - geologic KW - guidebooks KW - site KW - visit AB - A thorough and searchable database to all geologic fieldtrip guidebooks published for field trips in the united states. A great resource! PB - AGI UR - http://guide.georef.org/dbtw-wpd/guidens.htm ER - TY - Generic T1 - Geology Tours of National Parks Y1 - 0 KW - #EducationalResources KW - #Fieldtrips KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - GEOLOGY KW - groundwater KW - K-12 KW - lesson plans KW - national parks KW - parks KW - schools KW - standards KW - teacher resources KW - teaching KW - water KW - water cycle AB - Provides information on the geology of national parks and related resources. PB - NPS UR - http://www2.nature.nps.gov/geology/tour/index.htm ER - TY - Generic T1 - Geothermal Heat Pump Information Y1 - 0 KW - #Geothermal KW - #GeothermalHomeownerResources KW - alternative energy KW - EGS KW - ehanced geothermal systems KW - geothermal KW - green energy KW - GSHP KW - hot dry rock KW - renewables AB - All things geothermal. From the U.S. Department of Energy. PB - U.S. Department of Energy UR - http://energy.gov/eere/geothermal/geothermal-energy-us-department-energy ER - TY - Generic T1 - Geothermal Heating and Cooling Technologies Y1 - 0 KW - #Geothermal KW - #GeothermalHomeownerResources KW - geothermal KW - Ground Source Heat Pump KW - GSHP AB - US-EPA primer for the homeowner on geothermal technologies with links to more resources. UR - http://www2.epa.gov/rhc/geothermal-heating-and-cooling-technologies#Ground ER - TY - Generic T1 - GRASS GIS Y1 - KW - #GISSoftware KW - #MapsDataPublications KW - GIS software KW - Open Source AB - GRASS GIS, commonly referred to as GRASS (Geographic Resources Analysis Support System), is a free Geographic Information System (GIS) software used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS GIS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies. GRASS GIS is an official project of the Open Source Geospatial Foundation (OSGeo). PB - GRASS / OSGeo UR - http://grass.osgeo.org/ ER - TY - Generic T1 - Great Falls Discovery Center (Turner's Falls, MA) Y1 - KW - #EducationalResources KW - #Museums KW - dinosaurs KW - field trips KW - footprints KW - fossils KW - Massachusetts Geology KW - mesozoic KW - minerals KW - museums KW - natural history PB - Pioneer Valley Institute UR - http://greatfallsdiscoverycenter.org/ ER - TY - Generic T1 - gvSIG Y1 - KW - #GISSoftware KW - #MapsDataPublications KW - GIS software KW - Open Source AB - gvSIG is a Geographic Information System (GIS), that is, a desktop application designed for capturing, storing, handling, analyzing and deploying any kind of referenced geographic information in order to solve complex management and planning problems. gvSIG is known for having a user-friendly interface, being able to access the most common formats, both vector and raster ones. It features a wide range of tools for working with geographic-like information (query tools, layout creation, geoprocessing, networks, etc.), which turns gvSIG into the ideal tool for users working in the land realm. PB - gvSIG UR - http://www.gvsig.org/web/ ER - TY - Generic T1 - Harvard Museum of Natural History (Cambridge, MA) Y1 - KW - #EducationalResources KW - #Museums KW - dinosaurs KW - field trips KW - footprints KW - fossils KW - Massachusetts Geology KW - minerals KW - museums PB - Harvard University UR - http://www.hmnh.harvard.edu/ ER - TY - Generic T1 - Historical Cadastral Maps and Illustrations Y1 - KW - #LegacyPublications KW - #MapsDataPublications KW - #Misc KW - #Topo KW - cadastral maps KW - historic maps KW - planimetric maps KW - topographic maps PB - Historic Map Works UR - http://www.historicmapworks.com/ ER - TY - Generic T1 - The Jurassic Roadshow Y1 - 0 KW - #Blogs KW - #ConnecticutValley KW - #EducationalResources KW - #MassGeology KW - dinosaurs KW - Eubrontes KW - footprints KW - fossils KW - Franklin County KW - hitchcock KW - Jurassic KW - mesozoic KW - minerals KW - redbeds KW - Triassic KW - Turners Falls AB - A blog and roving roadshow of rocks, tracks, and fossils. They host frequent public events throughout western Massachusetts highlighting the geology and history of geologic study of the Connecticut Valley UR - http://jurassicroadshow.com/ ER - TY - Generic T1 - Learning from the Fossil Record Y1 - KW - #EducationalResources KW - #SubjectResources KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - fossils KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching AB - Book originally published by the Paleontological Society. Includes a collection of classroom activities keyed to national science content standards (courtesy of the University of California at Berkeley) PB - UC Berkeley UR - http://www.ucmp.berkeley.edu/fosrec/ ER - TY - Generic T1 - List of geology and science blogs on About.com Y1 - KW - #Blogs KW - #EducationalResources KW - blogs KW - geologists KW - GEOLOGY KW - scientists KW - social media PB - about.com UR - http://geology.about.com/od/blogs/Geology_Weblogs.htm ER - TY - Generic T1 - MA DCR - Office of Water Resources Rainfall Program Y1 - 0 KW - data KW - massachusetts KW - rainfall KW - water KW - water resources KW - water supply PB - Massachusetts Department of Conservation and Recreation UR - http://www.mass.gov/dcr/waterSupply/rainfall/index.htm ER - TY - Generic T1 - MA DEP Drinking Water Information Y1 - 0 KW - drinking water standards KW - massachusetts KW - water resources PB - Massachusetts Department of Environmental Protection UR - http://www.mass.gov/dep/water/drinking.htm ER - TY - Generic T1 - MA DEP - Water Resources of Massachusetts Y1 - 0 KW - massachusetts KW - water resources PB - Massachusetts Department of Environmental Protection UR - http://www.mass.gov/dep/water/waterres.htm ER - TY - Generic T1 - MA DEP - Water, Wastewater, and Wetlands Y1 - 0 KW - massachusetts KW - regulations KW - wastewater KW - water resources KW - wetlands PB - Massachusetts Department of Environmental Protection UR - http://www.mass.gov/dep/water/index.htm ER - TY - Generic T1 - MA Department of Environmental Management, Hazard Mitigation Program Y1 - 0 KW - massachusetts KW - natural hazards UR - http://www.state.ma.us/dem/programs/mitigate/index.htm ER - TY - Generic T1 - The Massachusetts DEP Hydrogeologic Information Matrix Y1 - 0 KW - #BedrockMaps KW - #Hydro KW - #MapDatabase KW - #MapsDataPublications KW - #QuadIndex KW - #SurficialMaps KW - aquifer KW - catalog KW - data KW - database KW - GEOLOGIC MAP KW - ground source heat pumps KW - groundwater KW - hydrogeology KW - index KW - maps KW - quadrangles KW - water resources AB - An index of all USGS geologic maps and hydrogeologic publications for Massachusetts, cross-referenced and indexed by town and 7.5' quadrangle. This is an extremely valuable resource for finding geologic data for a given site. PB - MassDEP UR - http://www.mass.gov/eea/docs/dep/water/compliance/hydromat.pdf ER - TY - Generic T1 - Massachusetts Department of Conservation and Recreation Y1 - 0 KW - conservation KW - fishing KW - hunting KW - lakes KW - massachusetts KW - rivers KW - water resources KW - wetlands UR - http://www.mass.gov/dcr/index.htm ER - TY - Generic T1 - MassDEP Geothermal Integration Fact Sheet Y1 - 0 KW - #Geothermal KW - #GeothermalHomeownerResources KW - geothermal KW - Ground Source Heat Pump KW - GSHP KW - standing column AB - Owners of facilities with non-potable water wells may have the opportunity to reduce their costs for heating and cooling as well as reducing their carbon footprint by installing a ground source heat pump (GSHP) system to meet their heating and cooling needs. Advancing energy efficiency and conservation are priorities for the Commonwealth and MassDEP is helping our regulated community better understand how our energy use has critical environmental consequences. Facilities with non-potable wells should consider whether adding a GSHP to existing water withdrawal schemes can save heating and cooling costs, while also reducing fossil fuel use and associated green house gas emissions. PB - MassDEP UR - http://www.mass.gov/eea/agencies/massdep/water/reports/geothermal-integration.html ER - TY - Generic T1 - MassGIS Y1 - 0 KW - #GISSoftware KW - #Hydro KW - #MapsDataPublications KW - #Misc KW - #QuadIndex KW - #Soils KW - #Subsurface KW - #Topo KW - #Water KW - DEM KW - GIS KW - LiDAR KW - quadrangles AB - MassGIS is the geospatial data clearinghouse for Massachusetts. They distribute LiDAR, DEMs, and other elevation data, in addition to soils maps, hydrologic, cultural, environmental, and geological data. Their online dataviewer, Oliver is a quick and easy way to make your own maps if you do not have access to GIS software. PB - MassGIS UR - http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/ ER - TY - Generic T1 - Mindat.org Y1 - 0 KW - #Collecting KW - #EducationalResources KW - #MapsDataPublications KW - #MineralDatabase KW - #MineralResources KW - #Minerals KW - active KW - collecting KW - dimension stone KW - economic geology KW - fossils KW - gold KW - lead KW - mineral deposits KW - minerals KW - mines KW - quarries KW - rockhound KW - sand and gravel KW - sand pits KW - silver AB - "Mindat is the largest mineral database and mineralogy reference website on the internet. This site contains worldwide data on minerals, mineral collecting, mineral localities and other mineralogical data. This site is growing every day, with new mineral information, localities and photographs added by members." PB - MinDat.org UR - http://www.mindat.org ER - TY - Generic T1 - Mineral Resources Data System (MRDS) Y1 - 0 KW - #EducationalResources KW - #MapsDataPublications KW - #MineralDatabase KW - #MineralResources KW - #Minerals KW - collecting KW - dimension stone KW - economic geology KW - gold KW - lead KW - minerals KW - mines KW - quarries KW - sand and gravel KW - sand pits KW - silver AB - MRDS is a collection of reports describing metallic and nonmetallic mineral resources throughout the world. Included are deposit name, location, commodity, deposit description, geologic characteristics, production, reserves, resources, and references. It subsumes the original MRDS and MAS/MILS. MRDS is large and complex. This service provides a subset of the database comprised of those data fields deemed most useful and which most frequently contain some information, but full reports of most records are available as well. PB - USGS UR - http://tin.er.usgs.gov/mrds/ ER - TY - Generic T1 - Minerals Yearbook for Massachusetts Y1 - 0 KW - #Collecting KW - #EducationalResources KW - #MassGeology KW - #MineralDatabase KW - #MineralResources KW - #Minerals KW - industrial KW - minerals KW - quarries PB - USGS UR - http://minerals.usgs.gov/minerals/pubs/state/ma.html ER - TY - Generic T1 - NASA WorldWind Y1 - KW - #GISSoftware KW - #MapsDataPublications KW - GIS software KW - landsat KW - NASA KW - remote sensing AB - World Wind is an open-source (released under the NOSA license) virtual globe developed by NASA and the open source community for use on personal computers. PB - NASA UR - http://worldwind.arc.nasa.gov/ ER - TY - Generic T1 - National Earth Science Education Standards Y1 - KW - #EducationalResources KW - #EducationStandards KW - activities KW - classroom KW - content KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching AB - Standards for K-12 Earth Science Curricula and resources for Earth Science teachers. PB - Kentucky Geological Survey UR - http://www.uky.edu/KGS/education/edustand.htm ER - TY - Generic T1 - National Earthquake Information Center, Earthquake Hazards Program Y1 - 0 KW - earthquakes KW - massachusetts KW - natural hazards UR - http://earthquake.usgs.gov/regional/states.php?regionID=21®ion=Massachusetts U1 -Massachusetts earthquake information from the USGS.
ER - TY - Generic T1 - National Geodetic Survey Data Explorer Y1 - 0 KW - #MapsDataPublications KW - #Misc KW - #Topo KW - benchmarks KW - coast KW - geodesy KW - geodetic KW - survey KW - surveying KW - topography AB -Use this web map service to find locations of all NCGS geodetic and survey benchmarks. A great resource!
UR - http://www.ngs.noaa.gov/NGSDataExplorer/ ER - TY - Generic T1 - National Geologic Map Database Y1 - KW - #MapDatabase KW - #MapsDataPublications KW - catalog KW - data KW - database KW - GEOLOGIC MAP KW - index KW - maps AB - Search here first for any and all geologic map data for the Commonwealth before searching the links below. PB - USGS UR - http://ngmdb.usgs.gov/ ER - TY - Generic T1 - National Park Service Teacher Resources Y1 - 0 KW - #EducationalResources KW - #Fieldtrips KW - #SubjectResources KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - GEOLOGY KW - groundwater KW - K-12 KW - lesson plans KW - national parks KW - parks KW - schools KW - standards KW - teacher resources KW - teaching KW - water KW - water cycle AB - Educational resources and links for teaching geology with examples from the National Parks PB - NPS UR - http://www2.nature.nps.gov/geology/education/index.cfm ER - TY - Generic T1 - National Science Education Standards Y1 - 0 KW - earth science education standards KW - education KW - educational resources PB - Kentucky Geological Survey UR - http://www.uky.edu/KGS/education/edustand.htm ER - TY - Generic T1 - NEIGC Fieldtrip guidebooks for various parts of New England Y1 - KW - #EducationalResources KW - #Fieldtrips KW - #LegacyPublications KW - #MapsDataPublications KW - field trip KW - geologic history KW - guide KW - guidebook KW - New England KW - sites KW - visit AB - Guidebooks form the New England Intercollegiate Geological Conference NEIGC conference publications are and will continue to be the best resource for New England geology. PB - Salem State UR - http://w3.salemstate.edu/ lhanson/NEIGC/Guidebooks.html ER - TY - Generic T1 - NeMO Explorer - virtual tour at the New Millennium Observatory, a seafloor observatory at an active underwater volcano Y1 - KW - #EducationalResources KW - #SubjectResources KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - groundwater KW - K-12 KW - lesson plans KW - schools KW - scientists KW - seafloor KW - standards KW - teacher resources KW - teaching KW - underwater KW - volcano KW - water KW - water cycle UR - http://www.pmel.noaa.gov/vents/nemo/explorer.html ER - TY - Generic T1 - New England Geothermal Professional Association Y1 - 0 KW - #Geothermal KW - #GeothermalHomeownerResources KW - ECS KW - geothermal KW - Ground Source Heat Pump KW - GSHP AB - NEGPA is a regional non-profit association advocating for the development of Geothermal Systems as a dependable, cost-effective, renewable resource for New England. Their website contains a host of resources for homeowners and professionals. UR - http://www.negpa.org/ ER - TY - Generic T1 - New England Intgercollegiate Geological Conference (NEIGC) Y1 - KW - #EducationalResources KW - #Fieldtrips KW - conference KW - field trips KW - geologic history KW - New England KW - site AB - A low-cost autumn weekend of fieldtrips highlighting the geology of a different part of New England every year UR - http://w3.salemstate.edu/ lhanson/NEIGC/index.html ER - TY - Generic T1 - The New England Seismic Network Y1 - KW - #Earthquakes KW - #EducationalResources KW - #NaturalHazards KW - earthquakes KW - map KW - seismicity KW - shaking KW - tremor PB - Weston Observatory UR - http://quake.bc.edu:8000/index.htm ER - TY - Generic T1 - News and Current events in Earth Science on Geology.com Y1 - KW - #Blogs KW - #EducationalResources KW - events KW - GEOLOGY KW - news PB - Geology.com UR - http://geology.com/news/ ER - TY - Generic T1 - Northeast States Emergency Consortium Y1 - 0 KW - coastal erosion KW - earthquakes KW - flooding KW - landslides KW - massachusetts KW - natural hazards UR - http://www.nesec.org/ ER - TY - Generic T1 - OpenJUMP Y1 - KW - #GISSoftware KW - #MapsDataPublications KW - GIS software KW - Open Source AB - OpenJUMP is an open source Geographic Information System (GIS) written in the Java programming language. It is developed and maintained by a group of volunteers from around the globe. PB - OpenJUMP UR - http://www.openjump.org/ ER - TY - Generic T1 - Outside the Loop Y1 - 0 KW - #Geothermal KW - #GeothermalHomeownerResources KW - geothermal KW - Ground Source Heat Pump KW - GSHP AB - A Newsletter for Geothermal Heat Pump Designers and Installers by the GeoHeat center at the Oregon Institute of technology PB - Geo-Heat Center, Oregon Institute of Technology UR - http://geoheat.oit.edu/otl/index.htm ER - TY - Generic T1 - Position Statements from the Geological Society of America Geology and Society Division Y1 - KW - #EducationalResources KW - #PositionStatements KW - climate change KW - creationism KW - evolution KW - fracking KW - global warming KW - legislation KW - policy KW - position statement KW - public health KW - science AB - Position statements from the Geological Society of America on a Variety of issues. These represent the general consensus of the geologic community on these issues. PB - GSA UR - http://www.geosociety.org/positions/ ER - TY - Generic T1 - PostGIS Y1 - KW - #GISSoftware KW - #MapsDataPublications KW - GIS UR - http://postgis.refractions.net/ ER - TY - Generic T1 - A primer on Plate Tectonics - from UC Berkely Museum of Paleontology Y1 - KW - #EducationalResources KW - #SubjectResources KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - paleontology KW - plate tectonics KW - schools KW - standards KW - teacher resources KW - teaching PB - U.C. Berkeley UR - http://www.ucmp.berkeley.edu/geology/tectonics.html ER - TY - Generic T1 - Quantum GIS Y1 - KW - #GISSoftware KW - #MapsDataPublications KW - GIS software KW - Open Source AB - Quantum GIS (QGIS) is a user friendly Open Source Geographic Information System (GIS) licensed under the GNU General Public License. QGIS is an official project of the Open Source Geospatial Foundation (OSGeo). It runs on Linux, Unix, Mac OSX, Windows and Android and supports numerous vector, raster, and database formats and functionalities. PB - QGIS UR - http://qgis.org/ ER - TY - Generic T1 - Reading Maps with a Critical Eye: Becoming an Informed Map Reader Y1 - KW - #MapsDataPublications KW - #UsingGeologicMaps KW - catalog KW - data KW - database KW - GEOLOGIC MAP KW - how to KW - index KW - maps KW - using geologic maps AB - New to using geologic maps? This is a great guide to learning how to read and get the most out of geologic maps PB - Maine Geological Survey UR - http://www.maine.gov/doc/nrimc/mgs/mapuse/informed/informed.htm ER - TY - Generic T1 - Recent New England Earthquakes Y1 - KW - #Earthquakes KW - #EducationalResources KW - #NaturalHazards KW - earthquakes KW - map KW - seismicity KW - shaking KW - tremor PB - Weston Observatory UR - http://quake.bc.edu:8000/cgi-bin/NESN/recent_events.pl ER - TY - Generic T1 - Recent New England Earthquakes - Map Y1 - KW - #Earthquakes KW - #EducationalResources KW - #NaturalHazards KW - earthquakes KW - map KW - seismicity KW - shaking KW - tremor PB - Weston Observatory UR - http://quake.bc.edu:8000/quakes_recent.htm ER - TY - Generic T1 - Recent USGS Publications for Massachusetts Y1 - KW - #MapsDataPublications KW - #Misc KW - massachusetts KW - Massachusetts Geology KW - recent KW - reports KW - USGS KW - USGS publications PB - USGS UR - http://pubs.er.usgs.gov/#search:advance/page=1/page_size=100/title=Massachusetts:0 ER - TY - Generic T1 - Revolutionizing Earth System Science Education for the 21st Century - Report and Recommendations from a 50-State Analysis of Earth Science Education conducted by TERC for NOAA, Posted June 11, 2007. (PDF, 1.1 MB) Y1 - KW - #EducationalResources KW - #LessonPlans KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - recommendations KW - schools KW - standards KW - teacher resources KW - teaching PB - NOAA UR - http://www.oesd.noaa.gov/noaa_terc_study_lowres.pdf ER - TY - Generic T1 - Roadside Geology of Massachusetts Y1 - 0 KW - #EducationalResources KW - #Fieldtrips KW - #MassGeology KW - #MassGeologyBooks KW - book KW - field trip guide KW - geologic history KW - guidebook KW - roadside geology KW - site AB - Roadside Geology of Massachusetts explores the geologic history behind the rocks and landforms visible from the state's highways, including tours of Cape Cod, Nantucket, Martha's Vineyard, Boston Harbor, and Mount Greylock. With this book as your guide, examine the eroded remnants of mountains shoved to towering heights by colliding continents 400 million years ago and learn how Ice Age glaciers formed such well- known historic features as Beacon Hill, Walden Pond, and Plymouth Rock. PB - Mountain Press UR - http://mountain-press.com/item_detail.php?item_key=606 ER - TY - Generic T1 - Rock and Mineral Clubs in Massachusetts Y1 - 0 A1 - Eastern Federation of Mineralogical and Lapidary Societies KW - #Collecting KW - #MassGeology AB - A list of rock, fossil, and mineral clubs in Massachusetts maintained by the Eastern Federation of Mineralogical and Lapidary Societies UR - http://www.amfed.org/efmls/clubs.htm#Massachusetts ER - TY - Generic T1 - Scanned "newer" 1:25K topographic maps (from MassGIS) Y1 - KW - #MapsDataPublications KW - #Topo KW - 1:25000 KW - 7.5 KW - historic KW - quadrangles KW - topographic KW - topographic maps KW - topography AB - MassGIS scanned the USGS topographic quadrangles to create a digital database that can provide images of the paper maps. These images can be used as a backdrop for plotting vector data and for interpretation and analysis. MassGIS scanned the 15-minute series (vintage 1982-1990) where these maps were available; the 7.5-minute maps (1967-1979) were used elsewhere. Note that the elevation labels for the contours on the maps may be in meters or feet, depending on the vintage of the original paper map that MassGIS scanned. Contour labels on maps from 1982 and later are in meters. Labels on maps from 1967 through 1979 are in feet. See the Index Map for details. Most paper maps are at 1:25,000 scale; some older 7.5-minute quads were produced at 1:24,000 scale. PB - MassGIS UR - http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic- information-massgis/datalayers/imquad.html ER - TY - Generic T1 - School of Rock Y1 - KW - #EducationalResources KW - #ProfessionalDevelopment KW - career development KW - joides resolution KW - ocean drilling KW - opportunities AB - Opportunity for Earth Science Teachers to work alongside geologists doing ocean drilling PB - COL UR - http://www.oceanleadership.org/education/deep-earth-academy/educators/school-of-rock/ ER - TY - Generic T1 - Schoolyard Geology Y1 - KW - #EducationalResources KW - #LessonPlans KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching AB - This website is filled with activities and examples of what to look for to turn your schoolyard into a rich geologic experience. PB - USGS UR - http://education.usgs.gov/schoolyard/ ER - TY - Generic T1 - The Science Education Resource Center at Carlton College Y1 - KW - #EducationalResources KW - #LessonPlans KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching PB - SERC UR - http://serc.carleton.edu/ ER - TY - Generic T1 - SearchWell - MassDEP Well Driller Program Y1 - 0 KW - #Geothermal KW - #Hydro KW - #MapsDataPublications KW - #Subsurface KW - #Water KW - #WaterResources KW - aquifer KW - boreholes KW - boring logs KW - glacial KW - ground source heat pumps KW - groundwater KW - GSHP KW - search well KW - searchwell KW - subsurface KW - subsurface data KW - water resources KW - water wells KW - well completion reports KW - wells AB -Searchable online database of well completion reports in Massachusetts. Maintained by MassDEP
PB - MassDEP UR - https://eeaonline.eea.state.ma.us/dep/searchwell/ ER - TY - Generic T1 - Soil survey GIS layers for Massachusetts Y1 - KW - #MapsDataPublications KW - #Soils KW - #SurficialMaps KW - agriculture KW - farm KW - maps KW - NRCS KW - soil KW - soils AB - GIS datalayers portraying the latest soil survey data for Massachusetts PB - MassGIS, NRCS UR - http://www.mass.gov/mgis/soi.htm ER - TY - Generic T1 - Tapestry of Time and Terrain Y1 - KW - #EducationalResources KW - #SubjectResources KW - classroom KW - curricula KW - earth science KW - education KW - GEOLOGIC MAP KW - geologic time KW - GEOLOGY KW - K-12 KW - lesson plans KW - North America KW - schools KW - standards KW - teacher resources KW - teaching KW - U.S. AB - Unites the geology and topography of the United States. Includes descriptions of major geologic and topographic features and an explanation of the geologic time periods PB - USGS UR - http://tapestry.usgs.gov/Default.html ER - TY - Generic T1 - U-Mass Geoscience Contribution Series Y1 - 1978 KW - #BedrockMap KW - #BedrockMaps KW - #ConnecticutValley KW - #Fieldtrips KW - #UMGeoPubs AB - For several decades the Department of Geology and Geography at UMass Amherst published student theses, fieldtrip guidebooks, etc..., as affordable bound paper volumes. These publications represent some of the only geologic maps and data available for many parts of the Commonwealth. This links to a list of these publications, now available via PDF, maintained by the Dept. of Geosciences at U-Mass Amherst. For paper copies, please contact the department office. JF - U-Mass Geoscience Publication Series PB - Dept. of Geosciences, University of Massachusetts, Amherst UR - http://www.geo.umass.edu/research/list.html ER - TY - Generic T1 - The U-Mass Geosciences publication series Y1 - KW - #BedrockMaps KW - #LegacyPublications KW - #MapsDataPublications KW - BEDROCK KW - GEOLOGY KW - maps KW - massachusetts KW - theses KW - U- Mass AB - A series of publications on Massachusetts geology based on Master's and PhD theses by U-Mass students from the 1960s-1990s. These are a valuable resource and the only geologic data for many areas. ***Note: This list needs to be re-built in the biblio database and have its own page off of MGS website– it's no longer online. PB - U-Mass Amherst Dept. of Geosciences UR - http://www.geo.umass.edu/dept_info/contrib_series/list.html ER - TY - Generic T1 - UNH Historic Map Library for New England Y1 - KW - #LegacyPublications KW - #MapsDataPublications KW - #Topo KW - 1800s KW - 1:24000 KW - 1:31680 KW - 7.5 KW - historic KW - quadrangles KW - surveyed KW - topographic KW - topographic maps KW - topography AB - Historic topographic maps of New England states going back to the 1800s. PB - UNH Library UR - http://docs.unh.edu/nhtopos/nhtopos.htm ER - TY - Generic T1 - USGS Educational Resources Y1 - KW - #EducationalResources KW - #SubjectResources KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching AB - Highlights USGS geologic information helpful for the public, educators, students, scientists, businesses, and government agencies PB - USGS UR - http://education.usgs.gov/ ER - TY - Generic T1 - USGS Groundwater Watch Y1 - KW - #EducationalResources KW - #Hydro KW - #MapsDataPublications KW - #NaturalHazards KW - #Water KW - active KW - aquifer KW - drought KW - flood KW - flow KW - groundwater KW - historic KW - level KW - rivers KW - static water level KW - stream gauges KW - streamflow KW - streams KW - surface water KW - water KW - water quality AB - The USGS has a distributed water database that is locally managed. Surface water, groundwater, and water quality data are compiled from these local, distributed databases into a national information system. The groundwater database contains records from about 850,000 wells that have been compiled during the course of groundwater hydrology studies over the past 100 years. Information from these wells is served via the Internet through NWISWeb, the National Water Information System Web Interface. NWISWeb provides all USGS groundwater data that are approved for public release. This large number of sites is excellent for some uses, but complicates retrievals when the user is interested in specific networks, or wells in an active water- level measurement program. These "groundwater watch" web pages group related wells and data from these active well networks, and provide basic statistics about the water-level data collected by USGS water science centers for Cooperative Programs, for Federal Programs, and from data supplied to us by our customers through cooperative agreements. PB - USGS UR - http://groundwaterwatch.usgs.gov/ ER - TY - Generic T1 - The USGS Landslide Handbook– A Guide to Understanding Landslides Y1 - 0 KW - #EducationalResources KW - #Landslides KW - #NaturalHazards KW - #SubjectResources KW - classroom KW - curricula KW - earth science KW - education KW - K-12 KW - landslides KW - lesson plans KW - natural hazards KW - schools KW - standards KW - teacher resources KW - teaching PB - USGS UR - http://pubs.usgs.gov/circ/1325/ ER - TY - Generic T1 - USGS Publications Warehouse Y1 - KW - #MapDatabase KW - #MapsDataPublications KW - catalog KW - data KW - database KW - GEOLOGIC MAP KW - index KW - maps AB - Search here second for any and all geologic data for the Commonwealth before searching the links below. PB - USGS UR - http://infotrek.er.usgs.gov/pubs/ ER - TY - Generic T1 - USGS Topoview Y1 - 2014 KW - #MapsDataPublications KW - #Topo KW - topographic maps KW - USGS AB - An MGS favorite: Contemporary to historic topographic maps. TopoView highlights one of the USGS's most important and useful products, the topographic map. In 1879, the USGS began to map the Nation's topography. This mapping was done at different levels of detail, in order to support various land use and other purposes. As the years passed, the USGS produced new map versions of each area. The most current maps are available from The National Map. TopoView shows the many and varied older maps of each area, and so is useful for historical purposes—for example, the names of some natural and cultural features have changed over time, and the 'old' names can be found on these historical topographic maps. PB - United States Geological Survey UR - http://ngmdb.usgs.gov/maps/TopoView/ ER - TY - Generic T1 - USGS Water Resources of Massachusetts and Rhode Island Y1 - 0 KW - massachusetts KW - natural hazards KW - Rhode Island KW - water resources UR - http://ma.water.usgs.gov/ ER - TY - Generic T1 - USGS Water Resources of Massachusetts and Rhode Island Y1 - KW - #EducationalResources KW - #Hydro KW - #MapsDataPublications KW - #NaturalHazards KW - #Water KW - aquifer KW - drought KW - flood KW - flooding KW - flow KW - groundwater KW - historic KW - level KW - rivers KW - static water level KW - stream gauges KW - streamflow KW - streams KW - surface water KW - water KW - water quality AB - This is your direct link to water-resource information on Massachusetts's rivers and streams, ground water, water quality, and biology. Provides links to real time and historic streamflow, groundwater, drought, water quality, and precipitation data. PB - USGS UR - http://ma.water.usgs.gov/ ER - TY - Generic T1 - Virtual Courseware - online activities related to earthquakes, global warming, hydrology, and geologic dating Y1 - KW - #EducationalResources KW - #SubjectResources KW - activities KW - classroom KW - curricula KW - earth science KW - earthquakes KW - education KW - geochronology KW - geologic dating KW - global warming KW - hydrology KW - K-12 KW - lesson plans KW - plate tectonics KW - schools KW - standards KW - teacher resources KW - teaching AB - The Virtual Courseware Project produces interactive, online simulations for the life science laboratory or for earth science field studies. The activities are designed to enhance an existing curriculum and include online assessments. They can be used by students ranging from middle school, high school, or college classrooms PB - California State University UR - http://www.sciencecourseware.com/ ER - TY - Generic T1 - Water Science for Schools (USGS) Y1 - 0 KW - curriculum KW - education KW - educational resources KW - school KW - water UR - http://ga.water.usgs.gov/edu/ U1 -Voted one of the 10 Best Websites by Government Computer News!
ER - TY - Generic T1 - Water Science for Schools (USGS) Y1 - KW - #EducationalResources KW - #SubjectResources KW - activities KW - classroom KW - curricula KW - earth science KW - education KW - groundwater KW - K-12 KW - lesson plans KW - schools KW - standards KW - teacher resources KW - teaching KW - water KW - water cycle AB - Voted one of the best best government websites of 2008: http://www.gcn.com/print/27_21/46992-1.html PB - USGS UR - http://ga.water.usgs.gov/edu/ ER - TY - Generic T1 - What 7.5' quadrangle am I in?: A PDF of a paper map Y1 - 0 KW - #MapsDataPublications KW - #QuadIndex KW - catalog KW - data KW - database KW - GEOLOGIC MAP KW - index KW - maps KW - quadrangles KW - what town AB -Download a PDF map showing which towns are in which 7.5' quadrangles.
PB - MassGIS UR - http://www.geo.umass.edu/stategeologist/Quads_Towns_WS7_34x44.pdf ER - TY - Generic T1 - What 7.5' quadrangle am I in?: KMZ of 7.5" quadrangles for use in Google Earth Y1 - 0 KW - #MapsDataPublications KW - #QuadIndex KW - catalog KW - data KW - database KW - GEOLOGIC MAP KW - index KW - maps KW - quadrangles KW - what town AB -A Google Earth KMZ file showing the locations of 7.5' quadrangles in Massachusetts
PB - MGS UR - http://www.geo.umass.edu/stategeologist/QuadTownsWatersheds.kmz ER - TY - Generic T1 - Written In Stone: A geological history of the northeast United States Y1 - 0 KW - #EducationalResources KW - #MassGeology KW - #MassGeologyBooks KW - book KW - field trip guide KW - geologic history KW - New England AB -In vivid, non-technical prose, Written in Stone traces the geological changes in the American northeast since the continent perched on the equator and dinosaurs were young. Grand events unfold as continents collide, oceans disappear, mountain ranges rise and fall, and mass extinctions decimate entire species. The events are grand, but the features of the landscape created by these events are as familiar as the hill behind your home, the rocks in the stone walls that enclose your yard, and the grains of sand on the beach where you go to swim. The history of the landscape is written in all the rocks and stones of the Northeast. This is an indispensable reference to an understanding of the forces that shaped our familiar landscape from Maine to New Jersey.
PB - Black Dome Press UR - http://shop.blackdomepress.com//index.php?main_page=product_info&cPath=7&products_id=40 ER -