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U.S. Geological Survey Open-File Report 2009-1001

Geological Interpretation of the Sea Floor Offshore of Edgartown, Massachusetts

Skip past contents information Title | List of Figures | Conversion Factors | Abstract | Introduction | Setting | Methods | Bathymetry | Sidescan Sonar | Seismic Profiles | Sediments | Bottom Photography | Data Catalog | Summary | Acknowledgments | References Cited | Contacts

Figure 3, paleogeographic map showing the extent of the Laurentide ice sheet about 20 thousand years ago.

Figure 3. Regional paleogeographic map showing the extent of the Laurentide ice sheet over Cape Cod and the islands about 20–22 thousand years ago (ka).


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