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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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The distribution of sediment textures within the study area from Nahant to northern Cape Cod Bay.

Figure 13. The distribution of sediment textures within the study area from Nahant to northern Cape Cod Bay. The bottom-type classification is from Barnhardt and others (1998) and is based on 16 sediment classes, where the first letter in the legend is the primary sediment unit (more than 50 percent) and the second letter is the secondary sediment unit (less than 50 percent). The classification is based on four easily recognizable sediment units that include gravel (G), mud (M), rock (R), and sand (S) (fig. 11). The black rectangle is indicating the location of figure 15.

 


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