Figure 7. Sidescan-sonar imagery and chirp seismic-reflection profile across the inlet shoal complex offshore of Murrells Inlet. See figure 4 for figure location. Top: Perspective view of sidescan-sonar imagery draped over bathymetry, showing shore-oblique, low-relief ridges and the crest of the larger shore-normal shoals. Bottom: Chirp seismic-reflection profile shows the shoal complex overlying the transgressive surface, which truncates Pleistocene channels (yellow) and Cretaceous strata (red). Depth is approximate and assumes a seismic velocity of 1500 m/sec. Figure modified from Baldwin and others (2004, their figure 13).