Mine detail: Hilltop-Slaven Gold Property

Previously called 'Independence MineVictoria Resource Corporation?s propertyHilltop Gold Mine'

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Location

Lat / long:

40.41574, -116.80621

Resource(M)

Primary:	Gold
Secondary:	Silver
Tertiary:	Copper, Lead, Zinc, Antimony, Tin
Ore:	Gold, Pyrite, Chalcopyrite, Sphalerite, Galena, Tetrahedrite, Stibnite, Arsenopyrite, Cassiterite, Barite, Marcasite, Calcite, Fluorite, Jasper
Gangue:	Quartz
Orebody form:	tabular

Production

Operation type:	Surface
Deposit type:	fault zone
Production size:	Small
Development status:	Producer
First production started:	1907
Last production ended:	1919

Geology

Host rock:	Valmy Formation
Host type:	Chert,Argillite,Siltstone,Quartzite
Associated type:	Dacite,Porphyry,Quartz Monzonite
Structure:	Hilltop Mine Fault, The Hilltop deposit falls within the Battle Mountain-Eureka mineral belt.
Tectonic:	Complex structural history of thrust faulting and normal faulting
Alteration processes:	There have been two main alteration episodes: one pre-ore consisting of pervasive quartz-sericite-pyrite, and one coeval with gold deposition pervasive silicification, bleaching, baritization, and alunitization. Hydrothermal alteration of the Valmy Formation is predominantly bleaching (removal of organic carbon) and recrystallization/silicification resulting from the emplacement of Tertiary igneous intrusions. Tertiary igneous units exhibit typical phyllic alteration with local argillic alteration.

References

MRDS	M231404
DEP	10310570
Reference	{Deposit:: NBMG Mining District File 153, Numerous press clippings}{Deposit:: Lisle, R.E. and Desrochers, G.J., 1988, Geology of the Hilltop Gold Deposit, Lander County, Nevada in GSN Precious Metals Symposium Technical Volume.}{Deposit:: Bonham, H.F., 1986, NBMG Map 91}{Deposit:: Bonham, H.F., 1988, in NBMG MI-1987}{Deposit:: NBMG, 1994, MI-1993}{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:: Kelson, C.R., Keith, J.D., Christiansen, E.H., and Meyer, P.E., 2000, Mineral paragenesis and depositional model of the Hilltop gold deposit, Lander County, NV, in Cluer, J.K., Price, J.G., Struhsacker, E.M., Hardyman, R.F., and Morris, C.L., eds., Geology and ore Deposits 2000: The Great Basin and Beyond: Geological Society of Nevada Symposium Proceedings, Reno/Sparks, May 2000, p.1107-1132.}{Deposit:: http://www.arizonastar.com/337/Hilltop-Slaven_Property.htm}
Reporter	LaPointe, D.D., Schruben, Paul G.