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 - Surficial geology of a portion of Bristol, Norfolk and Plymouth Counties, Massachusetts Y1 - 2004 A1 - Stephen B Mabee A1 - Fernandez, M. KW - #MGSPub KW - #SurficialMaps KW - Abington KW - Acushnet KW - Avon KW - Boston KW - Braintree KW - Bridgewater KW - Brockton KW - Canton KW - Dedham KW - Dover KW - Duxbury KW - East Bridgewater KW - Easton KW - Foxborough KW - Freetown KW - Halifax KW - Hanover KW - Hanson KW - Holbrook KW - Kingston KW - Lakeville KW - Marshfield KW - Middleborough KW - Milton KW - Norwell KW - Norwood KW - Pembroke KW - Plympton KW - Quincy KW - Randolph KW - Raynham KW - Rochester KW - Rockland KW - Scituate KW - Sharon KW - Stoughton KW - Taunton KW - Walpole KW - West Bridgewater KW - Westwood KW - Whitman AB -

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 - 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 -