Mine detail: Hilltop Open Pit Gold Mine

Previously called ''

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Location

Lat / long:

40.4138, -116.80482

Resource(M)

Primary:	Gold
Tertiary:	Lead, Zinc, Antimony, Silver, Copper
Ore:	Chalcopyrite, Galena, Sphalerite, Stibnite, Tetrahedrite
Gangue:	Barite, Marcasite, Quartz
Orebody form:	TABULAR
Other material:	Pyrite

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer

Geology

Host rock:	Valmy
Host type:	Quartzite,Shale,Chert
Associated type:	Dacite
Structure:	Battle Mountain-Eureka Mineral Belt, Hilltop Mine Fault
Tectonic:	Complex Structural History
Alteration processes:	2 Alteration Episodes: One Pre-Ore (Peruasive Quarts-Sericite-Pyrite) And One Coeval With Gold Depisition Peruasive Silicification, Bleaching, Barite And Alunite.

References

MRDS	W702077
DEP	10086148
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}{Reserve-Resource:: BONHAM, 1988 NBMG MI-1993}
Reporter	La Pointe, D.D. (Tingley, J.V.), Li, Zhiping (Moyer, Lorre A.)