USGS Visual Identifier
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Geologic Unit: Prospect Mountain

Prospect Mountain Quartzite (CA*,NV*,UT*)

Proterozoic, Late*
Cambrian, Early*
Geologic Province:
Great Basin province*
Great Basin region*

Areal Extent:

Type Locality:
Named from Prospect Peak, Eureka district, Eureka Co., NV, where it reaches its broadest development and forms the western slope (Hague, 1883).

Unit Name History:
Named (Hague, 1883).
Areal limits, extended into House Range, UT (Walcott, 1908).
Areal limits; Revised (Nolan, 1930).
Areal limits (Deiss, 1938; Nolan and others, 1956; Hewett, 1956; Roberts and others, 1958).
Revised (Bick, 1959).
Areal limits (Crittenden and others, 1961; Whitebread and others, 1962).
Restricted, lower part removed and assigned to McCoy Creek Group (Misch and Hazzard, 1962).
Areal limits; Overview (Staatz and Carr, 1964).
Areal limits (Merriam, 1964; Stewart and Barnes, 1966; Willden and Kistler, 1969; Stewart, 1970).
Age modified (Tschanz and Pampeyan, 1970).
Areal limits (Crittenden and others, 1971).
Mapped (Nolan and others, 1971).
Age modified (Stewart, 1974).
Areal limits (Hintze, 1980).
Age modified; Areal limits (Howard, 1980).
Revised (Christie-Blick, 1982).
Areal limits (Miller, 1983).
Isotopic dating (Coats, 1987).
Areal limits (McCollum and Miller, 1991; Miller and others, 1993; Miller, 1993; Miller and Lush, 1994).

Note: If you need more information, please contact Nancy Stamm (
Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys.

"No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses ().

Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]).

U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
Database project personnel
Last modified: 15-Jan-2013