Nevada · Lander County
Past Producer

Tomboy Mine

Lander County, Nevada, United States
GoldLeadCopperSilverIronZinc
⌖ Show on mapUSGS source ↗
Description

L. Sands, W. Gibson

Commodities
PrimaryGold
SecondaryLead, Copper, Silver
TertiaryIron, Zinc
Commodity typeM
Deposit
Deposit typeReplacement
Model59: Skarn Cu
Deposit sizeS
Ore controlReplacement Type Mineralization Of The Tomboy-Minnie Deposits Is Generally Confined To The 30 M Thick Calcareous Basal Conglomerate Of The Battle Formation.
Materials
Ore mineralsChalcopyrite, Galena
GangueApatite, Chlorite, Diopside, Epidote, Marcasite, Plagioclase, Pyrite, Pyrrhotite, Quartz, Sericite, Sphalerite, Sphene, Tremolite
Geology
Host rockConglomerate · Battle Formation
Associated rockShale,Siltstone,Sandstone · Harmony Formation;Copper Canyon Stock
StructureRoberts Mountains Thrust; Dewitt Thrust, N-S Striking, Steeply East Dipping Faults
AlterationPrograde Skarn, Retrograde Skarn. See Geology Comments.
Economic & production
Development statusPast Producer
Production years1925; 1927-28; 1935; 1937-38; 1948-49; 1978-82.
First production1925
Last production1982
Discovery year1900
Identification
Deposit ID10044058
MRDS IDM231379
Alternate namesTomboy-Minnie
RegionNA
Data scoreA
Coordinates40.52351, -117.12011
References
BLAKE, D. W. AND KRETSCHMER, E. L., 1980, GOLD DEPOSITS AT COPPER CANYON, LANDER COUNTY, NEVADA, ABSTRACT, AIME PRECIOUS METALS SYMPOSIUM, SPARKS, NEVADA.BLAKE, D. W., KRETSCHMER, E. L., AND THEODORE, T. G., 1978, GEOLOGY AND MINERALIZATION OF THE COPPER CANYON DEPOSITS, LANDER COUNTY, NEVADA, IN GUIDEBOOK TO MINERAL DEPOSITS OF THE CENTRAL GREAT BASIN, NBMG REPORT 32, P. 45-48.STEWART, J. H., MCKEE, E. H., AND STAGER, H. K., 1977, GEOLOGY AND MINERAL DEPOSITS OF LANDER COUNTY, NEVADA, NBMG BULL. 88.VANDERBURG, 1939, RECONNAISSANCE OF MINING DISTRICTS IN LANDER COUNTY, NEVADA, USBM INFORMATION CIRCULAR 7043.ROBERTS, R. J. AND ARNOLD, D. C., 1965, ORE DEPOSITS OF THE ANTLER PEAK QUADRANGLE, HUMBOLDT AND LANDER COUNTIES, NEVADA, USGS BULLETIN 459-B.JACKSON, D., 1982, HOW DUVAL TRANSFORMED ITS BATTLE MOUNTAIN PROPERTIES FROM COPPER TO GOLD, ENGINEERING AND MINING JOURNAL, V. 183, NO. 10, P. 95-99.THEODORE, T. G., HOWE, S. S., BLAKE, D. W., AND WOTRUBA, P. R., 1986, GEOCHEMICAL AND FLUID ZONATION IN THE SKARN ENVIRONMENT AT THE TOMBOY-MINNIE GOLD DEPOSITS, LANDER COUNTY, NEVADA, JOURNAL OF GEOCHEMICAL EXPLORATION, VOL. 25, P. 99-128.THEODORE, T. G., 1971, GEOLOGIC MAP OF THE COPPER CANYON AREA, BATTLE MOUNTAIN MINING DISTRICT, LANDER COUNTY, NEVADA, USGS OPEN FILE REPORT 71-282.THEODORE, T. G., HOWE, S. S., AND BLAKE, D. W., 1990, THE TOMBOY-MINNIE GOLD DEPOSITS AT COPPER CANYON, LANDER COUNTY, NEVADA, USGS BULL. 1857E, P. E43-E55.1925-1949 ANNUAL PRODUCTION: ROBERTS, R. J. AND ARNOLD, D. C., 1965, ORE DEPOSITS OF THE ANTLER PEAK QUADRANGLE, HUMBOLDT AND LANDER COUNTIES, NEVADA, USGS BULLETIN 459-B. 1978-1982 CUMULATIVE PRODUCTION: THEODORE, T. G., HOWE, S. S., BLAKE, D. W., AND WOTRUBA, P. R., 1986, GEOCHEMICAL AND FLUID ZONATION IN THE SKARN ENVIRONMENT AT THE TOMBOY-MINNIE GOLD DEPOSITS, LANDER COUNTY, NEVADA, JOURNAL OF GEOCHEMICAL EXPLORATION, VOL. 25, P. 99-128.