Arizona, Nevada, and California
Comments on Geologic Parameters
04 Net Sand Thickness:
Net-sand-thickness maps of the Tertiary basin-and-range aquifers are not documented for the entire Mojave Basin and adjacent areas. However, local accumulations of more than several hundred feet of net sand are common in areas where the net upper-basin-fill thickness is more than 1 mi (>1.6 km) (Brown, 1976).
Brown, S. G., 1976, Preliminary maps showing ground-water resources in the lower Colorado River region, Arizona, New Mexico, and Utah: U.S. Geological Survey Hydrologic Investigations Atlas HA-542, 3 sheets.