U.S. Geological Survey Open-File Report 2007-1373
Prepared in cooperation with the Massachusetts Office of Coastal Zone Management
By Walter A. Barnhardt1, Brian D. Andrews1, Seth D. Ackerman2, Wayne E. Baldwin1 and Christopher J. Hein3
1U.S. Geological Survey, Woods Hole, MA
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The geologic framework of the Massachusetts inner continental shelf between Cape Ann and Salisbury Beach has been shaped by a complicated history of glaciation, deglaciation, and changes in relative sea level. New geophysical data (swath bathymetry, sidescan sonar and seismic-reflection profiling), sediment samples, and seafloor photography provide insight into the geomorphic and stratigraphic record generated by these processes. High-resolution spatial data and geologic maps in this report support coastal research and efforts to understand the type, distribution, and quality of subtidal marine habitats in the Massachusetts coastal ocean.
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