Figure 24. Ternary diagrams of sediment sample grain size from each of the physiographic zones. Each dot represents the bottom sample in terms of percent gravel, sand, and mud (silt + clay). A dot on the apex of the triangle would be 100% of that size; one plotting on a line would be a mixture of the two nearest corners. Pie graphs, based on side-scan sonar mapping of the shelf (Barnhardt and others, 1996a-g), depict the abundance (% area) of rock (R), gravel (G), sand (S), and mud (M) (Table 4, Table 5); n is the number of samples.

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Last updated on October 6, 2005

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