Mine detail: Mouat Ni-Cu South

Previously called 'South Mouat Area'

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Location

Lat / long: 45.37686, -109.89996

Resource(M)

Primary: Copper, Nickel
Secondary: Cobalt
Tertiary: PGE, Silver, Gold
Ore: Chalcopyrite, Pentlandite, Pyrrhotite
Gangue: Magnetite, Olivine, Plagioclase
Orebody form: LENTICULAR TO TABULAR CONCENTRATIONS OF SUFLIDE MINERALS
Discovery year: 1967

Production

Operation type: Unknown
Production size: None
Development status: Occurrence

Geology

Host rock:Stillwater Complex, Ultramafic Series, Peridotite Zone;Stillwater Complex, Basal Series;Stillwater Complex;
Host type:Peridotite
Structure:The Stillwater Complex Is Exposed Along The Northern Margin Of The Beartooth Uplift, One Of Several Laramide Basement-Cored Ranges That Make Up The Rocky Mountain Foreland Of South Central Montana (Foose And Others, 1961; Kulik And Schmidt, 1988), See Deposit Description
Tectonic:The Tectonic Setting At Time Of Emplacement Of The Stillwater Complex Is Unknown. The Complex Was Emplaced Shortly After A Major, Regional Subduction-Related Magmatic Event Which Culminated In Emplacement Of The 2.73-2.79 Ga Granitoid Suite In The Batholith Exposed In The Beartooth Uplift (Wooden And Others, 1991). However, There Is No Evidence That The Magmatism That Formed The Stillwater Complex Is Related To Convergent Margin Tectonics And Magmatism
Alteration processes:None Related To The Ore-Forming Process

References

MRDSMP00270
DEP10048658
Reference{Deposit:: ATTANASI, E.D., AND BAWIEC, W.J., 1987, A RESOURCE ASSESSMENT OF COPPER AND NICKEL SULFIDES WITHIN THE MOUNTAIN VIEW AREA, STILLWATER COMPLEX, MONTANA: U.S. GEOLOGICAL SURVEY BULLETIN 1674B, 29 P.}{Deposit:: PAGE, N.J, 1979, STILLWATR COMPLEX, MONTANA - STRUCTURE, MINERALOGY, AND PETROLOGY OF THE BASAL ZONE WITH EMPHASIS ON THE OCCURRENCE OF SULFIDES: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1938, 69 P.}{Deposit:: PAGE, N.J, ZIENTEK, M.L., LIPIN, B.R., MANN, E.L. (BOB), SCHMIDT, E.A., TURNER, A.R., CZAMANSKE, G.K., AND RAEDEKE, L.D., 1985B, EXPLORATION AND MINING HISTORY OF THE STILLWATER COMPLEX AND ADJACENT ROCKS, IN CZAMANSKE, G.K., AND ZIENTEK, M.L., EDS., THE STILLWATER COMPLEX, MONTANA: GEOLOGY AND GUIDE: MONTANA BUREAU OF MINES AND GEOLOGY SPECIAL PUBLICATIONS 92, P. 77-92.}{Deposit:: PAGE, N.J, ZIENTEK, M.L., LIPIN, B.R., RAEDEKE, L.D., WOODEN, J.L., TURNER, A.R., LOFERSKI, P.J., FOOSE, M.P., MORING, B.C., AND RYAN, M.P., 1985A, GEOLOGY OF THE STILLWATER COMPLEX EXPOSED IN THE MOUNTAIN VIEW AREA AND ON THE WEST SIDE OF THE STILLWATER CANYON, IN CZAMANSKE, G.K., AND ZIENTEK, M.L., EDS., THE STILLWATER COMPLEX, MONTANA: GEOLOGY AND GUIDE: MONTANA BUREAU OF MINES AND GEOLOGY SPECIAL PUBLICATION 92, P. 147-209.}{Deposit:: PAGE, N.J, AND NOKLEBERG, W.J., 1974, GEOLOGIC MAP OF THE STILLWATER COMPLEX, MONTANA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS GEOLOGIC INVESTIGATIONS SERIES MAP I-797, 5 SHEETS, SCALE 1:12,000.}{Deposit:: PREMO, W.R., HELZ, R.T., ZIENTEK, M.L., AND LANGSTON, R.B., 1990, U-PB AND SM-ND AGES FOR THE STILLWATER COMPLEX AND ITS ASSOCIATED SILLS AND DIKES, BEARTOOTH MOUNTAINS, MONTANA: IDENTIFICATION OF A PARENT MAGMA?: GEOLOGY, V. 18, P. 1065-1068.}{Deposit:: WOODEN, J.L., CZAMANSKE, G.K., AND ZIENTEK, M.L., 1991, A LEAD ISOTOPIC STUDY OF THE STILLWATER COMPLEX, MONTANA: CONSTRAINTS ON CRUSTAL CONTAMINATION AND SOURCE REGIONS: CONTRIBUTIONS TO MINERALOGY AND PETROLOGY, V. 107, P. 80-93.}{Deposit:: ZIENTEK, M.L., AND RIPLEY, E.M., 1990, SULFUR ISOTOPIC STUDIES OF THE STILLWATER COMPLEX AND ASSOCIATED ROCKS, MONTANA: ECONOMIC GEOLOGY, V. 85, P. 376-391.}{Deposit:: ZIENTEK, M.L., BAWIEC, W.J., PAGE, N.J, AND COOPER, R.W., 1989, MAPS, SECTIONS, AND STRUCTURE-CONTOUR PERSPECTIVE DIAGRAMS SHOWING THE GEOLOGY AND GEOCHEMISTRY OF THE MOUAT NICKEL-COPPER PROSPECT, STILLWATER COMPLEX, STILLWATER COUNTY, MONTANA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-2038, 2 SHEETS, SCALE 1:24,000.}{Deposit:: ZINETEK, M.L., 1993, MINERAL RESOURCE APPRAISAL FOR LOCATABLE MINERALS: THE STILLWATER COMPLEX, IN HAMMARSTROM, J.M., ZIENTEK, M.L., AND ELLIOTT, J.E., EDS., MINERAL RESOURCE ASSESSMENT OF THE ABASROKA-BEARTOOTH STUDY AREA, CUSTER AND GALLATIN NATIONAL FORESTS, MONTANA: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 93-207, P. F1-F83.}{Deposit:: ZIENTEK, M.L., FOOSE, M.P., AND MEI, LEUNG, 1986, PALLADIUM, PLATINUM, AND RHODIUM CONTENTS OF ROCKS NEAR THE LOWER MARGIN OF THE STILLWATER COMPLEX, MONTANA: ECONOMIC GEOLOGY, V. 81, P. 1169-1178.}{Reserve-Resource:: SOUTH MOUAT AREA RESOURCE ESTIMATES ARE FROM ATTANASI AND BAWIEC (1987) AND WERE MADE ON TWO DOMAINS; THE FIRST FOUR ESTIMATES ABOVE FROM ONE DOMAIN AND THE LAST OUR FROM THE OTHER DOMAIN}
ReporterPeterson, Jocelyn A., Zientek, Michael L.