Commodities
PrimarySilver, Lead
SecondaryManganese, Copper, Gold
TertiaryZinc, Molybdenum
Commodity typeM
Deposit
Deposit sizeM
WorkingsUnderground
Orebody formTABULAR
Ore controlNortheast Striking Fissures, Intersections Between Fissures And Favorable Beds, Proximity To Dikes
Materials
Ore mineralsArgentite, Chalcopyrite, Galena, Gold, Malachite, Smithsonite, Sphalerite, Wad
GangueCalcite, Quartz
Geology
Host rockLimestone,Dolomite · Maxfield Limestone;Fitchville Formation
Associated rockDiorite · Alta Stock;Grizzly Dike-Alaskite
StructureSevier Overthrust Belt, Cordilleran Hinge Line, Uinta-Cottonwood Arch, Grizzly Overthrust Zone, Northeast Striking Fissures
Tectonic settingCordilleran Hinge Line, Basin And Range-Colorado Plateau Transition Zone
AlterationBleaching, Minor Silicification, Calc-Silicates, Oxidation
Economic & production
Development statusPast Producer
First production1870
Last production1928
Discovery year1869
Identification
Deposit ID10101913
MRDS IDD011945
Alternate namesTopeka Tunnel, City Rocks Tunnel, Black Bess Mine, Solitude Tunnel, Utah Mines Coalition, Lavina, Darlington, Regulator, Continental-Alta., Grizzly Tunnel, Cleave Tunnel, Butte Mine
RegionNA
Data scoreB
Coordinates40.59577, -111.61772
References
CALKINS, F.C., AND BUTLER, B.S., 1943, GEOLOGY AND ORE DEPOSITS OF THE COTTONWOOD-AMERICAN FORK AREA, UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 201.BUTLER, B.S., LOUGHLIN, G.F., HEIKES, V.C., AND OTHERS, 1920, THE ORE DEPOSITS OF UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 111.BAKER, A.A., CALKINS, F.C., CRITTENDEN, M.D., JR., AND BROMFIELD, C.S., 1966, GEOLOGIC MAP OF THE BRIGHTON QUADRANGLE, UTAH: U.S. GEOLOGICAL SURVEY GEOL. QUAD. MAP GQ-534JAMES, L.P., 1979, GEOLOGY, ORE DEPOSITS, AND HISTORY OF THE BIG COTTONWOOD MINING DISTRICT, SALT LAKE COUNTY, UTAH: U.G.M.S. BULL. NO. 114CALKINS AND BUTLER, 1943