Mine detail: Chimney Creek Mine

Previously called 'Chimney Creek Prospect'

<< Back to the map

Location

Lat / long:

41.27961, -117.15763

Resource(B)

Primary:	Gold
Secondary:	Silver
Tertiary:	Sand and Gravel, Construction
Ore:	Gold
Gangue:	Albite, Augite, Barite, Calcite, Chlorite, Epidote, Fluorite, Kaolinite, Limonite, Pyrite, Quartz, Sericite, Tourmaline
Orebody form:	TABULAR
Discovery year:	1985

Production

Operation type:	Unknown
Deposit type:	Replacement
Production size:	Large
Development status:	Producer
First production started:	1987

Geology

Host rock:	Etchart Formation;Etchart Formation;Etchart Formation;Etchart Formation
Host type:	Dolomite
Associated rock:	Goug * Canyon Formation;Osgood Mountains Granodiorite
Associated type:	Dacite,Basalt
Structure:	Reg.Struct: Roberts Mountain Thrust (Below) And The Golconda Thrust (Above), Intruded By The Mid-Cretaceous Osgood Mt. Granodiorite And Related Trachyandesite Dikes., Low Angle Unconformity Developed In The Goug * Canyon Formation. The Chimney Creek Deposit Occurs Along A Northeasterly Range Front Lineament That Is Probably An Extension Of The Getchell Fault. Host Rocks Strike Ne, Dip 21-32 Nw.
Tectonic:	Back-Arc Thrust Belt
Alteration processes:	Hydrothermal: Sericite, Kaolinite, Monite, Dickite, Alunite, Natroalunite. A Zone Of Phyllic Alteraion, 50 M Wide Around Feeder Zone, Contains Ore Grade Mineralization. Carbonate Dissolution Zones; Two Generations Of Silicification (Jasperoid); Propylitic Basalts.

References

MRDS	W700409
DEP	10084981
Reference	{Deposit:: OSTERBERG, M. W. AND GUILBERT, J.M., 1991, GEOLOGY, WALL-ROCK ALTERATION, AND NEW EXPLORATI TECHNIQUES AT THE CHIMNEY CREEK SEDIMENT-HOSTED GOLD DEPOSITS, HUMBOLDT COUNTY, NV. GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN, GSA SYMPOSIUM PROCEEDINGS, RENO, NV. P. 805-819.}{Deposit:: THE MINERAL INDUSTRY 1990; NBMG SPEC. PUB. MI-1990.}{Deposit:: STAFF, 1988, DIRECTORY OF NEVADA MINE OPERATIONS ACTIVE DURING CALENDAR YEAR 1987: NEVADA DIV. OF MINE INSPECTION, 84P.}{Deposit:: NEVADA MINING ASSOCIATION BULLETIN. OCT-NOV 1985.}{Deposit:: THE MINING RECORD, NOV 13, 1985, P. 3.}{Deposit:: RENO GAZETTE JOURNAL, NOV. 11, 1985.}{Deposit:: THE NORTHERN MINER, NOV. 11, 1985.}{Deposit:: MINE SEARCH ANNUAL, 1984-1985, BOULDER, CO: METALS ECONOMICS GROUP, V 7, P. 93-94.}{Deposit:: GEOLOGICAL SOCIETY OF NEVADA, 1987, PRECIOUS METALS SYMPOSIUM. LECTURES. ABSTRACTS.}{Deposit:: OSTERBERG, MARK, 1988, GEOLOGY OF THE CHIMNEY CREEK SEDIMENT-HOSTED GOLD DEPOSIT, OSGOOD MOUNTAINS, NEVADA (ABSTRACT): GEOLOGICAL SOCIETY OF NEVADA, V. 1, NO. 2, P. 4-6.}{Deposit:: ORAL COMMUNICATION FROM JIM DELONG, 16 JUL. 1986. GEOLOGIST FORMERLY WITH GOLD FIELDS.}{Reserve-Resource:: ITEM 1AND 2: NBMG. SPEC. PUB. MI-1990. ITEM 3: NEVADA MINING ASSOCIATION BULL. OCT-NOV 1985. ITEM 4: BONHAM, 1988. ITEM 5: OSTERBERG, 1988, P. 4.}
Reporter	Moyer, Lorre A. (Marcus, S.M.), Li, Zhiping (Peters, S.), Mosier, Dan, Paidakovich, Matthew E.