Commodities
PrimarySilver, Lead
SecondaryGold, Copper
TertiaryManganese, Molybdenum, Zinc
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
WorkingsUnderground
Orebody formTABULAR
Ore controlFissures Striking Northeast, Intersections Of Favorable Beds With Fissures
Materials
Ore mineralsAnglesite, Argentite, Galena, Gold, Malachite, Smithsonite, Wad, Wulfenite
GangueCalcite, Quartz
Geology
Host rockLimestone,Dolomite · Maxfield Limestone;Fitchville Limestone
Associated rockDiorite · Alta Stock;Diorite Dikes
StructureUinta-Cottonwood Arch, Cordilleran Hinge Line, Sevier Overthrust Belt, Grizzly Thrust Fault, Northeast Striking Fissures
Tectonic settingCordilleran Hinge Line, Basin And Range-Colorado Plateau Transition Zone
AlterationBleaching, Calc-Silicates, Minor Silicification, Oxidation
Economic & production
Development statusPast Producer
First production1870
Last production1903
Discovery year1869
Identification
Deposit ID10014872
MRDS IDD011943
Alternate namesMichigan-Utah Mine, Oregon-Black Bess Mine, Black Bess Shaft, Oregon Mine
RegionNA
Data scoreB
Coordinates40.59938, -111.60689
References
JAMES, L.P., 1979, GEOLOGY, ORE DEPOSITS, AND HISTORY OF THE BIG COTTONWOOD MINING DISTRICT, SALT LAKE COUNTY, UTAH: U.G.M.S. BULL. NO. 114.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-534