| Pioche Formation | |
|---|---|
| Stratigraphic range: Cambrian | |
| Type | Formation |
| Location | |
| Region | Utah and Nevada |
| Country | United States |
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The Pioche Formation is a geologic formation in Utah and Nevada. It preserves fossils dating back to the Cambrian period.[1][2]
- ^ Gemmill, Paul (1968). Ridge, John (ed.). The Geology of the Ore Deposits of the Pioche District, Nevada, in Ore deposits of the United States, 1933-1967. New York: The American Institute of Mining, Metallurgical, and Petroleum engineers, Inc. pp. 1128–1147.
- ^ Westgate, L.G.; Knopf, Adolph. "Geology and ore deposits of the Pioche district, Nevada, USGS Professional Paper 171". USGS. Retrieved 4 July 2020.