Surficial Geologic Map of the Ashby-Lowell-Sterling-Billerica 11-Quadrangle Area in Northeast-Central Massachusetts

Compiled by Stone, Byron D.; Stone, Janet R.

Abstract:

The surficial geologic map shows the distribution of nonlithified earth materials at land surface in an area of eleven 7.5-minute quadrangles (total 505 mi2) in northeast-central Massachusetts. The geologic map differentiates surficial materials of Quaternary age on the basis of their lithologic characteristics (such as grain size and sedimentary structures), constructional geomorphic features, stratigraphic relationships, and age. Surficial earth materials significantly affect human use of the land, and an accurate description of their distribution is particularly important for water resources, construction aggregate resources, earth-surface hazards assessments, and land-use decisions. This compilation of surficial geologic materials is an interim product that defines the areas of exposed bedrock, and the boundaries between glacial till, glacial stratified deposits, and overlying postglacial deposits. This work is part of a comprehensive study to produce a statewide digital map of the surficial geology at a 1:24,000-scale level of accuracy. This report includes explanatory text (PDF), a regional map at 1:50,000 scale (PDF), quadrangle maps at 1:24,000 scale (PDF files), GIS data layers (ArcGIS shapefiles), metadata for the GIS layers, scanned topographic base maps (TIF), and a readme.txt file.

Genre:

USGS Numbered Series

ProdID:

80311

Citation Author:

Compiled by Stone, Byron D.; Stone, Janet R.

Citation Contributing Office:

Geological Survey (U.S.)

Citation Datum:

Citation Day:

Citation Edition:

Citation Editor:

Citation End Page:

Citation Issue:

Citation Keywords:

Citation Language:

ENGLISH

Citation Larger Work Title:

Citation LatN:

0424500

Citation LatS:

0422230

Citation LonE:

-0711500

Citation LonW:

-0715230

Citation Month:

Citation No Pagination:

Citation Number Of Pages:

Citation Online Only Flag:

Citation Phsyical Description:

Map: 44 x 36 inches; Text: iii, 13 p.; Data Files

Citation Projection:

Citation Public Comments:

Prepared in Cooperation with the Commonwealth of Massachusetts, Office of the State Geologist and Executive Office of Energy and Environmental Affairs

Citation Publisher:

Geological Survey (U.S.)

Citation Series:

Open-File Report

Citation Series Code:

OFR

Citation Series Number:

2006-1260-C

Citation Search Results Text:

Surficial Geologic Map of the Ashby-Lowell-Sterling-Billerica 11-Quadrangle Area in Northeast-Central Massachusetts; 2007; OFR; 2006-1260-C; Compiled by Stone, Byron D.; Stone, Janet R.

Citation Start Page:

Citation Volume:

Citation Year:

2007

Type:

citation/reference

Text:

Surficial Geologic Map of the Ashby-Lowell-Sterling-Billerica 11-Quadrangle Area in Northeast-Central Massachusetts; 2007; OFR; 2006-1260-C; Compiled by Stone, Byron D.; Stone, Janet R.