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Royston

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Porphyry copper prospect in Nevada, United States

Names and other identifiers

GMRAP ID 51
Alternate names Crow Springs
Tract name Western U.S. and Sonoran Desert Jurassic Arc (003pCu9006x)
Site status prospect

Geographic location

Country United States
State or province Nevada
Geographic location -117.5, 38.333333333
Geologic map unit -117.5, 38.333333333
Nearby data
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Geologic information

Deposit type Porphyry copper
Age (Ma) 207Ma
Age determination method unknown
Age range 207 Ma
Age reference Singer and others (2008)
Minerals actinolite, chalcopyrite, chlorite, chrysocolla, epidote, goethite, hematite/specularite, leucoxene, pyrite, pyrrhotite, rutile, sericite, tenorite, tourmaline, turquoise
Associated rocks quartz monzonite porphyry, andesite, basalt, chert, granite, greenstone, rhyodacite, rhyolite
Tectonic setting mixed
Stratigraphic age Late Triassic

Commodity and development information

Development status Occurrence
Major commodities Cu
Gold-Moly ratio -9999

Reference information

Study area name United States
References Albers and Stewart (1972); Kleinhampl and Ziony (1984); Seedorf (1991); Wendt and Albino (1992); Singer and others (2008)
Site reference U.S. Geological Survey National Mineral Resource Assessment Team (2002)
Albers, J.P., and Stewart, J.H., 1972, Geology and mineral deposits of Esmeralda County, Nevada: Nevada Bureau of Mines and Geology Bulletin 78, 80 p., scale 1:250,000.
Kleinhampl, F.J., and Ziony, J.I., 1984, Mineral resources of northern Nye County, Nevada: Reno, Nevada Bureau of Mines and Geology Bulletin 99B, 243 p.
Seedorf, Eric, 1991, Royston district, Western Nevada—A Mesozoic porphyry copper system that was tilted and dismembered by Tertiary normal faults, in Raines, G.L., Lisle, R.E., Schafer, R.W., and Wilkinson, W.H., eds., Geology and ore deposits in the Great Basin: Geological Society of Nevada Great Basin Symposium, Reno/Sparks, Nev., April 1–5, 1990 [Proceedings], p. 359–391.
Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the world—Database and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, [45] p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2008/1155/.
Wendt, C.J., and Albino, G.V., 1992, Porphyry copper and related occurrences in Nevada: Nevada Bureau of Mines and Geology Map 100, 8 p. and 1 plate.