Description
Thomas Shane & N.H. Chapin
Commodities
PrimaryCopper, Lead, Silver, Zinc
TertiaryGold, Manganese, Molybdenum
Commodity typeM
Deposit
Model60: Skarn Zn-Pb
Deposit sizeS
WorkingsUnderground
Orebody formCLUSTERS OF LENSING BODIES AND BUNCHES, IRREGULAR
Ore controlLarge Cluster Of Lensing And Irregular Replacement Bodies Along N-S Trending Fault Contact Of Pyrometamorphosed Limestone And Tri-Jur Volcanics
Materials
Ore mineralsBornite, Chalcopyrite, Galena, Molybdenite, Pyrite, Sphalerite
GangueDiopside, Garnet, Limonite, Quartz, Tremolite
Geology
Host rockQuartzite,Limestone · Naco Group;Epitaph Dolomite, Cherty Limestone Member;Scherrer Formation, Lower Quartzite Member
Associated rockRhyolite · Duquesne Volcanics
StructureMineral Deposits Of Washington-Duquesne Area Occupy A Limestone-Sediment Belt (2.5 Mi By 1.25 Mi) Surrounded By Igneous Rocks Which Also Form Detached Masses And Dikes Within Belt, Fault Contact Of Naco Limestone And Tri-Jur Volcanics; Upper Portion Of Shaft In Volcanic Rocks; Lower Portion In Coarsely-Crystalline Limestone That Has Been Contact Metamorphased To Marble
Tectonic settingN-S Trending Bonanza Fault Zone; Washington Camp Fault Block To W And Downthrown Duquesne Fault Block To E
AlterationOxidized To 100 Ft, Manganese Stained Gossan
Economic & production
Development statusPast Producer
First production1889
Last production1961
Discovery year1882
Identification
Deposit ID10037101
MRDS IDM030399
Alternate namesPart of Duquesne-Washington Camp Group, Nash Mine Group
RegionNA
Data scoreA
Coordinates31.3732, -110.68706
References
LEHMAN, 1978, PH D THESIS, UNIV OF AZKEITH, 1975 ABM BULL 191SCHRADER, 1915, USGS BULL 582ABGMT-USBM FILE DATAUSBM FILES, BONANZA MINEADMR FILE DATA, BONANZA MINE, NASH MINESABGMT CLIPPINGS FILE, BONANZA MINE, DUQUESNE MINING AND REDUCTION C O.ABGMT FILES, STANTON B. KEITHBLM DISTRICT MINING SHEET 727TENNEY, 1927-29, HISTORY OF MINING IN AZ, ABM, P. 293-300CIMRIKEITH, 1975; LEHMAN, 1978