OFR 2005-1048 Home / Introduction / Geologic Setting / GIS Data Catalog / Bottom Photographs

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U.S. Geological Survey Open-File Report 2005-1048

Geological Interpretation of Bathymetric and Backscatter Imagery of the Sea Floor Off Eastern Cape Cod, Massachusetts


Figure 31

Figure 31: Pseudo-colored map of the sea floor off Chatham showing combined bathymetry and backscatter intensity.

Pseudo-colored map of the sea floor off Chatham showing combined bathymetry and backscatter intensity. Predominantly sandy areas have low backscatter (blue); predominantly gravelly areas have moderate backscatter (green). Large sandwaves trend toward the northeast and have higher backscatter (red) and coarser sediments on their southeast-facing slopes. Inset shows map location (blue polygon) within survey area (red polygon).


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