Mine detail: Searchlight Deposit

Previously called 'Duplex Mine AreaQuartette Mine Area'

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Location

Lat / long:

35.46584, -114.91804

Resource(M)

Primary:	Gold
Secondary:	Silver, Copper
Tertiary:	Tungsten, Vanadium, Iron
Ore:	Sphalerite, Galena, Chalcopyrite, Gold, Chalcocite, Cerussite, Cuprite, Malachite, Chalcedony, Hematite, Calcite, Brochantite, Limonite, Wulfenite, Vanadinite, Adularia
Gangue:	Quartz
Orebody form:	irregular to flat or saucer-shaped.
Discovery year:	1897

Production

Operation type:	Underground
Deposit type:	fissure veins
Production size:	Medium
Development status:	Past Producer
Production years:	1898-1950s
First production started:	1898
Last production ended:	1959

Geology

Host type:	Gneiss
Associated type:	Quartz Monzonite,Andesite,Porphyry,Volcanic Rock (Aphanitic)
Structure:	The area has been uplifted intruded by igneous rock and denuded by erosion.
Alteration processes:	The deposit has been silicified by hydrothermal activity, and oxidized.

References

MRDS	W002897
DEP	10310513
Reference	{Deposit:: Callaghan, E. 1939, Geology of the Searchlight District, Clark Co. Nevada: USGS Bull. 906-D p. 135-188}{Deposit:: Koschmann, A H and Bergendahl, M H, 1968, Principal Gold Producing Districts of the U.S.: USGS Prof. Paper 610, p. 175}{Deposit:: Ransome, F. L., 1909, Prelim Goldfield, Bullfrog & other mining districts in southern Nevada: USGS Bull. 303 p. 63-75}{Deposit:: Lincoln, F. C., 1923, Min. Dists of Nevada: Reno, Nev. Newsletter Pub. Co. P. 24-27}{Deposit:: Ferguson, H. G. 1929, Min Dists of Nevada: Econ Geol, vol 24, P. 135}{Deposit:: Searchlight NV websites.}{Deposit:: NBMG Map 91, 1st, 2nd, 3rd editions.}{Deposit:: Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Significant deposits of gold, silver, copper, lead, and zinc in the United States: U.S. Geological Survey Open-File Report 90-206A, 33 p.; 98-206B. one 3.5 inch diskette.}{Deposit:: Longwell and others, 1965.}
Reporter	Schruben, Paul G., LaPointe, D.D.