USGS OFR 2009-1150: Surficial Geology of the Floor of Lake Mead (Arizona and Nevada) as Defined by Sidescan-Sonar Imagery, Lake-Floor Topography, and Post-Impoundment Sediment Thickness, Figure 13

U.S. Geological Survey Open-File Report 2009-1150

Surficial Geology of the Floor of Lake Mead (Arizona and Nevada) as Defined by Sidescan-Sonar Imagery, Lake-Floor Topography, and Post-Impoundment Sediment Thickness

Title Page / List of Figures and Tables / Conversion Factors / Abstract / Introduction / Methods / Lake-Floor Geology / Discussion / Data Catalog / Acknowledgments / References Cited

Figure 13, sidescan-sonar image from the western end of Boulder Basin, and link to larger image.

Figure 13. Sidescan-sonar image from the western end of Boulder Basin showing the transition between alluvial deposits in the upper right part of the image and smooth reworked deposits in the lower left. The reworked deposits are alluvial deposits that presumably were reworked and smoothed by seasonal changes in lake level during the first half of the history of the lake. See figure 1 for the location of this figure. Click on figure for larger image.

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