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U.S. Geological Survey Open-File Report 2012-1157

Shallow Geology, Seafloor Texture, and Physiographic Zones of the Inner Continental Shelf from Nahant to Northern Cape Cod Bay, Massachusetts


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Sediment texture and distribution data were mapped qualitatively in Esri ArcGIS using a hierarchical methodology. Backscatter data were the first input, followed by bathymetry, surficial geologic and shallow stratigraphic interpretations, and photograph and sample databases. DEM, digital elevation model.

Figure 12. Sediment texture and distribution data were mapped qualitatively in Esri ArcGIS using a hierarchical methodology. Backscatter data were the first input, followed by bathymetry, surficial geologic and shallow stratigraphic interpretations, and photograph and sample databases. DEM, digital elevation model.

 

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