Commodities
PrimaryGold, Silver, Lead, Zinc
SecondaryCopper
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formVEIN FILLING WITH SOME LOCALIZED THICKENING OF VEINS
Ore controlMovement Along Vein Structure Caused Fracturing Of Earliest Formed Minerals - Quartz, Pyrite, Arsenopyrite
Materials
Ore mineralsChalcopyrite, Galena, Gold, Sphalerite
GangueQuartz
Geology
Host rockVolcanic Rock (Aphanitic),Andesite
Associated rockDiorite,Andesite · Andesite;Cret-Tert
StructureBoulder Batholith, Lombard Overthrust Large North Trending Syncline, Small Scale Faulting, Altered Dikes On At Least 2 Levels Of Marietta, Also Quartz Diorites, Andesite
AlterationAlteration Of Andesite Around Mineralized Veins
Economic & production
Development statusPast Producer
First production1880
Discovery year1878
Identification
Deposit ID10071878
MRDS IDW015573
RegionNA
Data scoreB
Coordinates46.36462, -111.7067
References
SCHELL, E. M., 1963, ORE DEPOSITS OF THE NORTHERN PART OF THE PARK (INDIAN CREEK) DISTRICT, BROADWATER COUNTY, MONTANA: MONT. BUREAU OF MINES AND GEOL. BULL. 35, P. 1-38KLEPPER, M. R. RUPPEL, E. T., FREEMAN, V. L., WEEKS, R. A., 1971, GEOLOGY AND MINERAL DEPOSITS, EAST FLANK OF THE ELKHORN MOUNTAINS, BROADWATER DOUNTY, MONTANA: US GEOL SURVEY PROF. PAPER 665, P. 41REED, G. C., 1951, MINES AND MINERAL DEPOSITS (EXCEPT FUELS) BROADWATER COUNTY, MONT: US BUR MINES INF. CIRC. 7592, P. 48, 49SCHELL, E. M., 1963, NORTHERN PART PARK (INDIAN CREEK) DISTRICT PRODUCTION IS FOR ENTIRE PARK (INDIAN CREEK) DISTRICT THE MARIETTA MINE IS PROBABLY RESPONSIBLE FOR MOST OF THIS PRODUCTION