Red Sandstone
Usage of Geologic Unit Name:
Red Sandstone*
Age:
Miocene, late*
Red Sandstone outcrops along the North Shore Road (in the foreground) in Lake Mead National Recreation Area.
Great Basin province*
NV(ne)*
AZ(nw)*
Type Locality:
Not designated; named for sedimentary rock exposures in the northern Lake Mead region and west of the Grand Wash Cliffs in basins along the western margin of the Shivwitz Plateau.
Not designated.
Red Sandstone of Grand Wash Bay used by Brady and others, 2002. 40Ar/39Ar isotopic dates given of about 11 million years by Harlan and others, 1998.
References:
Brady, Rober J., Fryxell, Joan E., and Wernicke, Brian P., 2002, Preliminary geologic map of the Iceber Canyon Quadrange, Clark County, Nevada and Mohave County, Arizona: Nevada Bureau of Mines and Geology, Open-File Reoport 03-18.
Stephen S. Harlan, Ernest M. Duebendorfer, and Jack E. Deibert, 1998, New 40Ar/39Ar isotopic dates from Miocene
volcanic rocks in the Lake Mead area and
southern Las Vegas Range, Nevada: Can. J. Earth Sci. Vol. 35, p. 495-503.
