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Open-File Report 2006–1260–F

Prepared in cooperation with the Commonwealth of Massachusetts
Massachusetts Geological Survey and Executive Office for Administration and Finance

Surficial Geologic Map of the Norton-Manomet-Westport-Sconticut Neck 23-Quadrangle Area in Southeast Massachusetts

Compiled by Byron D. Stone, Janet R. Stone, Mary L. DiGiacomo-Cohen, and Kevin A. Kincare

Thumbnail of and link to report PDF (3.65 MB)

Introduction

The surficial geologic map shows the distribution of nonlithified earth materials at land surface in an area of 23 7.5-minute quadrangles (919 mi2 total) in southeastern Massachusetts. Across Massachusetts, these materials range from a few feet to more than 500 ft in thickness. They overlie bedrock, which crops out in upland hills and as resistant ledges in valley areas. 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 materials also are known in engineering classifications as unconsolidated soils, which include coarse-grained soils, fine-grained soils, and organic fine-grained soils. Surficial materials underlie and are the parent materials of modern pedogenic soils, which have developed in them at the land surface. Surficial earth materials significantly affect human use of the land, and an accurate description of their distribution is particularly important for assessing water resources, construction aggregate resources, and earth-surface hazards, and for making land-use decisions. 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), 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.

First posted February 23, 2012

For additional information contact:
Janet R. Stone
U.S. Geological Survey
101 Pitkin Street
East Hartford, CT 06108
(860) 291–6748

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.


Suggested citation:

Stone, B.D., Stone, J.R., DiGiacomo-Cohen, M.L., and Kincare, K.A., comps., 2011, Surficial geologic map of the Norton-Manomet-Westport-Sconticut Neck 23-quadrangle area in southeast Massachusetts: U.S. Geological Survey Open-File Report 2006–1260–F, 21 sheets, scale 1:24,000, 22-p. text.



Contents

Introduction

Surficial Materials in Massachusetts

Glacial Till Deposits

Glacial Moraine Deposits

Glacial Stratified Deposits

Postglacial Deposits

Description of Map Units

Map Compilation

References Cited

Appendix: Sources of Data by 7.5-Minute Quadrangle

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