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Home > Explore! > Coastal Marine Geology > The Seafloor Revealed > Methods > Figure 20


side-scan sonar image of a gravel deposit

Figure 20. Side-scan sonar image of a gravel deposit on the floor of a channel in Muscongus Bay (modified from Kelley and Belknap, 1988). The gravel is referred to as a "lag" deposit because it lags behind after finer grained sediment has been eroded by strong currents.

Last updated on October 6, 2005