TY - DATA T1 - Brittle Structure Database of the Gloucester and Rockport quadrangles, Massachusetts Y1 - 2007 A1 - Stephen B Mabee KW - #FractureMaps KW - #MGSPub KW - Cape Anne KW - Cape Anne granite KW - Essex KW - fault KW - fracture KW - Gloucester KW - Ipswich KW - joint KW - Manchester KW - Rockport KW - ⃔ JF - Open-File Report PB - Massachusetts Geological Survey ER - TY - DATA T1 - Brittle Structure Database of the Wilmington quadrangle, Massachusetts Y1 - 2009 A1 - Stephen B Mabee KW - #FractureMaps KW - #MGSPub KW - Andover KW - Bedford KW - Billerica KW - Burlington KW - fault KW - fracture KW - fracture trace KW - groundwater KW - hydrostructural domains KW - joint KW - North Reading KW - Reading KW - Tewksbury KW - Wilmington KW - Woburn AB -

Email sbmabee @geo.umass.edu

JF - Open-File Report PB - Massachusetts Geological Survey 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 The above version should be considered outdated. If you would like a copy of the outdated map, please contact Joseph Kopera at jkopera[at]geo[dot]geo[dot]umass[dot]edu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 - 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 - 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 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 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 -