Figure 2.5.  Enlarged section of the sidescan-sonar image in Figure 2.4 shows the complexities of the shallow seafloor offshore of Myrtle Beach.  Intricate patterns of high backscatter (light tones) and low backscatter (dark tones) represent exposures of rock and fine sand deposits, respectively.  Backscatter values are represented as digital numbers assigned to the pixels within the imagery, ranging from 0 (black) to 255 (white).  See Figure 2.4 for location. [Click here for high-resolution image.]

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