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Figure 17. Top: Perspective view of sidescan-sonar imagery draped over bathymetry looking towards Myrtle Beach. Mean grain size of samples is indicated by color-coded spheres. Vertical exaggeration is 200 x. Bottom: Shore-parallel bathymetric profile along a characteristic low-relief ridge showing variations in backscatter and mean grain size of surficial sediment in relation to ridge morphology. Finer sediments fall on the crest and SW side of low-relief ridges; coarse grained sediments fall on NE side and within the trough. |