Mine detail: Castle Prospect

Previously called 'Black Rock prospectBerg prospectBoss prospect'

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Location

Lat / long: 38.08549, -117.74676

Resource(M)

Primary: Gold, Silver
Secondary: Mercury
Tertiary: Antimony
Ore: Gold, Cinnabar, Jarosite, Clay, Pyrite, Stibnite
Gangue: Chalcedony
Orebody form: tabular
Discovery year: 1928

Production

Operation type: Surface-Underground
Deposit type: volcanic replacement along a fault-breccia, epithermal
Production size: Small
Development status: Past Producer

Geology

Host rock:Palmetto Formation, GILBERT ANDESITE
Host type:Sedimentary Rock,Andesite,Tuff,Rhyolite
Structure:northeast- and northwest-trending fault zones.
Alteration processes:silicification of volcanics and sedimentary rocks.

References

MRDSM241845
DEP10310346
Reference{Deposit:: Bailey, E.H., and Phoenix, D.A., 1944, Quicksilver Deposits in Nevada: Univ. Nev. Bull. Vol. 38, No. 5, Geol & Min. Ser. No 41, p.75.}{Deposit:: Albers, J.P. and Stewart, J.H., 1972, Geology and Mineral Deposits of Esmeralda Co, Nev: N.B.M.G. Bull. 78, p. 67, Pl. 2.}{Deposit:: Silberman, M.L. and McKee, E.H., 1974, In NBMG Report 19, p. 71.}{Deposit:: Lawrence, E.F., 1963, NBMG Bull. 61, p. 64-65}{Deposit:: Smith & Bentz, Field Examination, 23 September 1982}{Deposit:: NBMG MI-87 through MI-03}{Deposit:: NBMG Map 91, 1st, 2nd, 3rd editions}{Deposit:: Tonopah Land Status, 1978}{Deposit:: Amer. Mines (1989, 1990), 1989, 1990}{Deposit:: http://www.seabridgegold.net}{Deposit:: BLM Claim Microfiche}{Deposit:: Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Database of significant deposits of gold, silver, copper, lead, and zinc in the United States; Part A, Database description and analysis; part B, Digital database: U.S. Geological Survey Open-File Report 98-206, 33 p., one 3.5 inch diskette}{Deposit:: Denver Mining Record, 10/30/96}{Deposit:: Northern Miner, 11/4/96}{Deposit:: Rayrock Resources Inc. news releases, 5/27/98, 11/13/98}{Deposit:: Seabridge Resources Inc. press release, 10/10/2000.}
ReporterLaPointe, D.D., Schruben, Paul G.