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Sidescan-Sonar Imagery of the Shoreface and Inner Continental Shelf, Wrightsville Beach, North Carolina
Figure 10.
A: The rock outcrops (marine hardbottoms) in the study area support a variety of or ganisms, including corals, boring clams, sponges, and gorgonians. The organisms contribute not
only to the production of biogenic sediments, but also to the acoustic reflectivity of the rock outcrops. (From Thieler and others 1995).
B: A sidescan sonar image of a low-relief limestone scarp. The scarp is formed in PPvf lithosome
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