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Surficial Geology and Distribution of Post-Impoundment Sediment in Las Vegas Bay, Lake Mead

Figure 11.  Sidescan mosaic (top panel) showing the distribution of the three facies that occur beyond the delta front. High-backscatter sand tends to occur nearest the delta front while moderate backscatter sandy muds and low-backscatter muds in general occur further from the delta. The rock outcrops in the low-backscatter mud area suggest that the mud cover is thin and discontinuous. The floats for Las Vegas Bay Marina and the floating break water show on the image as well. Red line shows location of seismic profile in lower panel. Seismic profile shows the 2-4 m thick tongue of sediment extending beyond the delta front. Box shows location of Figure 12.



Click on area of map to zoom in
Figure 11. Sidescan mosaic (top panel) showing the distribution of the three facies that occur beyond the delta front.
Figure 11. Sidescan mosaic (top panel) showing the distribution of the three facies that occur beyond the delta front.


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