Mary DiGiacomo-Cohen is a Geologist at the Florence Bascom Geoscience Center.
I work as a Geologist in the Florence Bascom Geoscience Center. I'm part of a team conducting field research and mapping of the Quaternary geology in Massachusetts and parts of Michigan. In addition to geologic mapping, my responsibilities include GIS database development, metadata, and documentation. My interest in New England's glacial history began when I worked as an environmental analyst for the Connecticut Department of Environmental Protection's Geological and Natural History Survey, mapping the geology of Long Island Sound with USGS cooperators.
Science and Products
Task 2-Quaternary Geologic Mapping and Subsurface Correlation
The area encompassed by Task 2 includes various regions on the margins of the Great Lakes, with initial focus on: (1) several counties along the east margin of Lake Michigan (Leelanau, Benzie, Manistee, and Mason Counties of Michigan); and (2) Berrien County of southwestern Michigan. The primary objective of Task 2 is to produce a seamless, zoomable geologic framework map geodatabase in GeMS...
Data release for depth to bedrock derived from Hydrogeology of Southeastern Connecticut by Melvin (1974)
This data release consists of a single ESRI shapefile, Hydrogeo_SECTpts, with geologic information from the previously published Hydrogeology of Southeastern Connecticut (Melvin, 1974). Test boring location points digitized from georeferenced area maps (1:24,000 scale) are attributed with associated well log information: town, identification numbers, altitude, depth to bottom, and remarks regardin
Data release for depth to bedrock from Connecticut Water Resources Bulletins
This data release consists of information from published tables in Connecticut Water Resources Bulletins (WRBs) transcribed into tabular digital format. Information about wells and test holes in the WRBs used in this data release consists of geographic location, depth to consolidated rock (bedrock depth), and depth of the well or test hole. The WRBs, published between 1966 and 1980 by the U.S. Geo
Data release for depth to bedrock from Rhode Island Water Resources Maps
This data release, RI_WRpts.gdb, consists of information from Rhode Island Ground-water maps published by the Rhode Island Water Resources Coordinating Board, the Rhode Island Port and Industrial Development Commission, Rhode Island Industrial Commission, and the Rhode Island Development Council; in cooperation with the U.S. Geological Survey. The point data on these maps have been digitized into
Filter Total Items: 19
Lateral moraines, ice-dammed lakes, and meltwater-carved channels in the Pelham, Shutesbury, Leverett area of west-central Massachusetts: A record of Connecticut Valley ice lobe retreat
Temporary ice-dammed glacial lakes formed high in the landscape in several westward sloping valleys on the east side of the Connecticut Valley lowland during late Wisconsinan deglaciation. These lakes were impounded by a lengthy lobe of ice that extended farther south in the lowland than at upland retreatal ice-margin positions (fig. 1). The formation, lowering, and drainage of these ice-dammed la
Authors
Janet R. Stone, Mary L. DiGiacomo-Cohen
Geology of the Mineral and Lake Anna West Quadrangles, Virginia
This map product is a cooperator series publication and, as such, does not have a specific abstract.
Geologic mapping for this map product was completed between 2014 and 2017, with most of the field work occurring between January 2016 and May 2017. Numerous foot traverses were completed along creeks and roads throughout the field area; the shore of Lake Anna was accessed by kayak to provide addit
Authors
Mark W. Carter, William C. Burton, Ryan J. McAleer, Mary DiGiacomo-Cohen, R. Tyler Sauer
Glacial Lake Hitchcock and the sea: Fieldtrip Guidebook for the 78th Annual Reunion of the Northeast Friends of the Pleistocene
The fieldtrip will demonstrate the evidence for a close connection of Lake Hitchcock levels
with lake levels and the position of sea level in Long Island Sound via a channel cut into glacial
lake deposits in the lower Connecticut River valley, which issuperposed on a bedrock ridge at
the mouth of the Connecticut River. On the trip we will explain important offshore features like
an extensive ‐40‐
Authors
Janet Radway Stone, J.C. Ridge, Ralph S. Lewis, Mary L. DiGiacomo-Cohen
Surficial geologic map of the Norton-Manomet-Westport-Sconticut Neck 23-quadrangle area in southeast Massachusetts
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 different
Authors
Byron D. Stone, Janet Radway Stone, Mary L. DiGiacomo-Cohen, Kevin A. Kincare
Surficial geologic map of the Heath-Northfield-Southwick-Hampden 24-quadrangle area in the Connecticut Valley region, west-central Massachusetts
The surficial geologic map layer shows the distribution of nonlithified earth materials at land surface in an area of 24 7.5-minute quadrangles (1,238 mi2 total) in west-central 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 d
Authors
Janet Radway Stone, Mary L. DiGiacomo-Cohen
Surficial Geologic Map of the Worcester North-Oxford- Wrentham-Attleboro Nine-Quadrangle Area in South- Central Massachusetts
The surficial geologic map layer shows the distribution of nonlithified earth materials at land surface in an area of nine 7.5-minute quadrangles (417 mi2 total) in south-central Massachusetts (fig. 1). 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 in resistant ledges in valley areas. The geol
Authors
Byron D. Stone, Janet Radway Stone, Mary L. DiGiacomo-Cohen
Geologic interpretation and multibeam bathymetry of the sea floor in the vicinity of the Race, eastern Long Island Sound
Digital terrain models (DTMs) produced from multibeam bathymetric data provide valuable base maps for marine geological interpretations (Todd and others, 1999; Mosher and Thomson, 2002; ten Brink and others, 2004; Poppe and others, 2006a, b, c, d). These maps help define the geological variability of the sea floor (one of the primary controls of benthic habitat diversity), improve our understandin
Authors
L. J. Poppe, M. L. DiGiacomo-Cohen, E. F. Doran, S. M. Smith, H.F. Stewart, N.A. Forfinski
Surficial Geologic Map of the Pocasset-Provincetown-Cuttyhunk-Nantucket 24-Quadrangle Area of Cape Cod and Islands, Southeast Massachusetts
The surficial geologic map layer shows the distribution of nonlithified earth materials at land surface in an area of 24 7.5-minute quadrangles (555 mi2 total) in southeast 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. On Cape Cod and adjacen
Authors
Byron D. Stone, Mary L. DiGiacomo-Cohen
Surficial geologic map of the Salem Depot-Newburyport East-Wilmington-Rockport 16-quadrangle area in northeast Massachusetts
The surficial geologic map shows the distribution of nonlithified earth materials at land surface in an area of 16 7.5-minute quadrangles (total 658 mi2) in northeast Massachusetts. The geologic map differentiates surficial materials of Quaternary age on the basis of their lithologic characteristics (grain size, sedimentary structures, mineral and rock-particle composition), constructional geomorp
Authors
Byron D. Stone, Janet Radway Stone, Mary L. DiGiacomo-Cohen
Sidescan sonar imagery and surficial geologic interpretation of the sea floor off Branford, Connecticut
The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and the Connecticut Department of Environmental Protection (CT DEP), Figure 1 - Map of Study Areahas produced detailed geologic maps of the sea floor in Long Island Sound, a major East Coast estuary surrounded by the most densely populated region of the United States. These studies ha
Authors
L. J. Poppe, V. F. Paskevich, M. S. Moser, M. L. DiGiacomo-Cohen, E. B. Christman
Geological framework data from Long Island Sound, 1981-1990: A digital data release
IntroductionSince 1980 the Coastal and Marine Geology Program of the U.S. Geological Survey and Connecticut Department of Environmental Protection have conducted a joint program of cooperative geologic research in Long Island Sound and its vicinity. As part of this program, a highly successful regional-scale study of the geologic framework was completed. Reconnaissance high-resolution seismic r
Authors
L. J. Poppe, V. F. Paskevich, R. S. Lewis, M. L. DiGiacomo-Cohen
A review of the geologic framework of the Long Island Sound Basin, with some observations relating to postglacial sedimentation
Most of the papers in this thematic section present regional perspectives that build on more than 100 years of geologic investigation in Long Island Sound. When viewed collectively, a common theme emerges in these works. The major geologic components of the Long Island Sound basin (bedrock, buried coastal-plain strata, recessional moraines, glacial-lake deposits, and the remains of a large marine
Authors
Ralph S. Lewis, Mary L. DiGiacomo-Cohen
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
- Science
Task 2-Quaternary Geologic Mapping and Subsurface Correlation
The area encompassed by Task 2 includes various regions on the margins of the Great Lakes, with initial focus on: (1) several counties along the east margin of Lake Michigan (Leelanau, Benzie, Manistee, and Mason Counties of Michigan); and (2) Berrien County of southwestern Michigan. The primary objective of Task 2 is to produce a seamless, zoomable geologic framework map geodatabase in GeMS... - Data
Data release for depth to bedrock derived from Hydrogeology of Southeastern Connecticut by Melvin (1974)
This data release consists of a single ESRI shapefile, Hydrogeo_SECTpts, with geologic information from the previously published Hydrogeology of Southeastern Connecticut (Melvin, 1974). Test boring location points digitized from georeferenced area maps (1:24,000 scale) are attributed with associated well log information: town, identification numbers, altitude, depth to bottom, and remarks regardinData release for depth to bedrock from Connecticut Water Resources Bulletins
This data release consists of information from published tables in Connecticut Water Resources Bulletins (WRBs) transcribed into tabular digital format. Information about wells and test holes in the WRBs used in this data release consists of geographic location, depth to consolidated rock (bedrock depth), and depth of the well or test hole. The WRBs, published between 1966 and 1980 by the U.S. GeoData release for depth to bedrock from Rhode Island Water Resources Maps
This data release, RI_WRpts.gdb, consists of information from Rhode Island Ground-water maps published by the Rhode Island Water Resources Coordinating Board, the Rhode Island Port and Industrial Development Commission, Rhode Island Industrial Commission, and the Rhode Island Development Council; in cooperation with the U.S. Geological Survey. The point data on these maps have been digitized into - Publications
Filter Total Items: 19
Lateral moraines, ice-dammed lakes, and meltwater-carved channels in the Pelham, Shutesbury, Leverett area of west-central Massachusetts: A record of Connecticut Valley ice lobe retreat
Temporary ice-dammed glacial lakes formed high in the landscape in several westward sloping valleys on the east side of the Connecticut Valley lowland during late Wisconsinan deglaciation. These lakes were impounded by a lengthy lobe of ice that extended farther south in the lowland than at upland retreatal ice-margin positions (fig. 1). The formation, lowering, and drainage of these ice-dammed laAuthorsJanet R. Stone, Mary L. DiGiacomo-CohenGeology of the Mineral and Lake Anna West Quadrangles, Virginia
This map product is a cooperator series publication and, as such, does not have a specific abstract. Geologic mapping for this map product was completed between 2014 and 2017, with most of the field work occurring between January 2016 and May 2017. Numerous foot traverses were completed along creeks and roads throughout the field area; the shore of Lake Anna was accessed by kayak to provide additAuthorsMark W. Carter, William C. Burton, Ryan J. McAleer, Mary DiGiacomo-Cohen, R. Tyler SauerGlacial Lake Hitchcock and the sea: Fieldtrip Guidebook for the 78th Annual Reunion of the Northeast Friends of the Pleistocene
The fieldtrip will demonstrate the evidence for a close connection of Lake Hitchcock levels with lake levels and the position of sea level in Long Island Sound via a channel cut into glacial lake deposits in the lower Connecticut River valley, which issuperposed on a bedrock ridge at the mouth of the Connecticut River. On the trip we will explain important offshore features like an extensive ‐40‐AuthorsJanet Radway Stone, J.C. Ridge, Ralph S. Lewis, Mary L. DiGiacomo-CohenSurficial geologic map of the Norton-Manomet-Westport-Sconticut Neck 23-quadrangle area in southeast Massachusetts
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 differentAuthorsByron D. Stone, Janet Radway Stone, Mary L. DiGiacomo-Cohen, Kevin A. KincareSurficial geologic map of the Heath-Northfield-Southwick-Hampden 24-quadrangle area in the Connecticut Valley region, west-central Massachusetts
The surficial geologic map layer shows the distribution of nonlithified earth materials at land surface in an area of 24 7.5-minute quadrangles (1,238 mi2 total) in west-central 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 dAuthorsJanet Radway Stone, Mary L. DiGiacomo-CohenSurficial Geologic Map of the Worcester North-Oxford- Wrentham-Attleboro Nine-Quadrangle Area in South- Central Massachusetts
The surficial geologic map layer shows the distribution of nonlithified earth materials at land surface in an area of nine 7.5-minute quadrangles (417 mi2 total) in south-central Massachusetts (fig. 1). 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 in resistant ledges in valley areas. The geolAuthorsByron D. Stone, Janet Radway Stone, Mary L. DiGiacomo-CohenGeologic interpretation and multibeam bathymetry of the sea floor in the vicinity of the Race, eastern Long Island Sound
Digital terrain models (DTMs) produced from multibeam bathymetric data provide valuable base maps for marine geological interpretations (Todd and others, 1999; Mosher and Thomson, 2002; ten Brink and others, 2004; Poppe and others, 2006a, b, c, d). These maps help define the geological variability of the sea floor (one of the primary controls of benthic habitat diversity), improve our understandinAuthorsL. J. Poppe, M. L. DiGiacomo-Cohen, E. F. Doran, S. M. Smith, H.F. Stewart, N.A. ForfinskiSurficial Geologic Map of the Pocasset-Provincetown-Cuttyhunk-Nantucket 24-Quadrangle Area of Cape Cod and Islands, Southeast Massachusetts
The surficial geologic map layer shows the distribution of nonlithified earth materials at land surface in an area of 24 7.5-minute quadrangles (555 mi2 total) in southeast 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. On Cape Cod and adjacenAuthorsByron D. Stone, Mary L. DiGiacomo-CohenSurficial geologic map of the Salem Depot-Newburyport East-Wilmington-Rockport 16-quadrangle area in northeast Massachusetts
The surficial geologic map shows the distribution of nonlithified earth materials at land surface in an area of 16 7.5-minute quadrangles (total 658 mi2) in northeast Massachusetts. The geologic map differentiates surficial materials of Quaternary age on the basis of their lithologic characteristics (grain size, sedimentary structures, mineral and rock-particle composition), constructional geomorpAuthorsByron D. Stone, Janet Radway Stone, Mary L. DiGiacomo-CohenSidescan sonar imagery and surficial geologic interpretation of the sea floor off Branford, Connecticut
The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and the Connecticut Department of Environmental Protection (CT DEP), Figure 1 - Map of Study Areahas produced detailed geologic maps of the sea floor in Long Island Sound, a major East Coast estuary surrounded by the most densely populated region of the United States. These studies haAuthorsL. J. Poppe, V. F. Paskevich, M. S. Moser, M. L. DiGiacomo-Cohen, E. B. ChristmanGeological framework data from Long Island Sound, 1981-1990: A digital data release
IntroductionSince 1980 the Coastal and Marine Geology Program of the U.S. Geological Survey and Connecticut Department of Environmental Protection have conducted a joint program of cooperative geologic research in Long Island Sound and its vicinity. As part of this program, a highly successful regional-scale study of the geologic framework was completed. Reconnaissance high-resolution seismic rAuthorsL. J. Poppe, V. F. Paskevich, R. S. Lewis, M. L. DiGiacomo-CohenA review of the geologic framework of the Long Island Sound Basin, with some observations relating to postglacial sedimentation
Most of the papers in this thematic section present regional perspectives that build on more than 100 years of geologic investigation in Long Island Sound. When viewed collectively, a common theme emerges in these works. The major geologic components of the Long Island Sound basin (bedrock, buried coastal-plain strata, recessional moraines, glacial-lake deposits, and the remains of a large marineAuthorsRalph S. Lewis, Mary L. DiGiacomo-CohenNon-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.