Figure 4.10. Ternary diagrams depicting the texture of surficial sediment collected in grab samples. The apexes of the diagrams represent 100% of the labeled textural component (i.e., gravel, sand, silt, and or clay). The upper diagram depicts 34 samples that lack gravel; the lower diagram depicts 22 samples that contain at least 0.5% gravel. See table 4.2 for additional information on these samples.