Commodities
PrimarySilver, Lead
SecondaryCopper, Manganese
TertiaryMolybdenum, Gold, Zinc
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
WorkingsUnderground
Orebody formTABULAR
Ore controlFissures Striking Northeast, Intersection Of Favorable Beds With Fissures
Materials
Ore mineralsAnglesite, Gold, Malachite, Smithsonite, Wad, Wulfenite
GangueCalcite, Quartz
Geology
Host rockLimestone,Dolomite · Maxfield Limestone;Fitchville Formation
Associated rockDiorite · Alta Stock;Diorite And Granodiorite Dikes
StructureUinta-Cottonwood Arch, Cordilleran Hinge Line, Sevier Overthrust Belt, Grizzly Thrust Fault, Northeast Striking Fissure
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 production1880
Discovery year1869
Identification
Deposit ID10014873
MRDS IDD011944
Alternate namesButte Tunnel, Bute Tunnel, Michigan-Utah Mine
RegionNA
Data scoreB
Coordinates40.59966, -111.60884
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