Figure 1. Side-Scan Sonar Profile The image above is a portion of a side-scan sonar record taken simultaneously with the seismic reflection profile to the left (Figure 2). This image shows a plan view of the seafloor (much like an aerial photograph). The area shown is about the size of eight football fields. The darker area is a mixture of bedrock outcrop and gravel (Rg). The lighter areas on either side are flat, muddy seafloor (M). The ship track followed the black centerline over the bottom. Both of these images were made using sound waves.

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Last updated on October 6, 2005

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