Commodities
PrimaryTalc-Soapstone
Commodity typeN
Deposit
Deposit typeReplacement
Deposit sizeM
Orebody formPOD
Ore controlLithology Of Host Rock (Dolomitic Marble)
Geology
Host rockMarble · Pre Belt;Gneiss;Schist;Amphibolite
StructureMinor Faults Offset Talc Body, Possible Isoclinal Folding, Steeply Inclined Faults
Tectonic settingPrecambrian Basement
Economic & production
Development statusProducer
Identification
Deposit ID10070456
MRDS IDW013398
Alternate namesSierra Strip Mine
RegionNA
Data scoreB
Coordinates45.22518, -112.30337
References
OLSON, R. H., (IN PREP.) THE GEOLOGY OF MONTANA TALC DEPOSITS: TO BE PUBLISHED BY THE MBMG IN THE PROCEEDINGS VOLUME OF THE ELEVENTH FORUM ON THE GEOLOGY OF INDUSTRIAL MINERALSGARIHAN, J. M., 1973, GEOLOGY AND TALC DEPOSITS OF THE CENTRAL RUBY RANGE, MADISON COUNTY, MONTANA: UNPUB. PHD DISS. PENN. STATE UNIV.BERG, R.B., 1979, TALC AND CHLORITE DEPOSITS IN MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY MEMOIR 45, P.34.