Commodities
PrimaryNickel, Copper
Commodity typeM
Deposit
Model9: Duluth Cu-Ni-PGE
Deposit sizeU
Ore controlFaults And Folds Were Responsible For Localizing Sulfide Mineralization As Well As For Providing Conduits For Later Syn- To Post-Magmatic Hydrothermal Fluids.
Materials
Ore mineralsPentlandite, Cubanite, Chalcopyrite, Pyrrhotite
Geology
Host rockTroctolite · South Kawishiwi Intrusion
StructureSeveral Ne-Trending Normal Faults Parallel The Midcontinent Rift System Near The Margin. These Faults Formed During The Opening Of The Rift And Controlled Emplacement Of The Troctolitic And Late Intrusions., At The Serpentine Deposit, Footwall Relationships Indicate That Movement Along The Grano Fault Was Initiated Prior To Emplacement Of The Partridge River Intrusion.
Economic & production
Development statusUnknown
Identification
Deposit ID10082823
MRDS IDW062176
RegionNA
Data scoreB
Coordinates47.67528, -91.87185
References
PAGE, N. J, 1986, DESCRIPTIVE MODEL OF DULUTH CU-NI-PGE, IN COX, D.P. AND SINGER, D.A., MINERAL DEPOSIT MODELS: U.S. GEOLOGICAL SURVEY BULLETIN 1693, P. 16.HAUCK, S.A., SEVERSON, M.J., ZANKO, L., BARNES, S-J., MORTON, P., ALMINAS, H., FOORD, E.E., AND DAHLBERG, E.H., IN PRESS [1996], AN OVERVIEW OF THE GEOLOGY AND OXIDE, SULFIDE AND PLATINUM-GROUP ELEMENT MINERALIZATION ALONG THE WESTERN AND NORTHERN CONTACTS OF THE DULUTH COMPLEX: GEOLOGICAL SOCIETY OF AMERICA SPECIAL PAPER.FOOSE, M.P., 1985, THE SETTING AND DISTRIBUTION OF COPPER-NICKEL SULFIDES IN THE SOUTH KAWISHIWI INTRUSION, DULUTH COMPLEX, MINNESTOA, IN KRAFT, KATHLEEN, ED., U.S. GEOLOGICAL SURVEY RESEARCH ON MINERAL RESOURCES--1985, PROGRAM AND ABSTRACTS: U.S. GEOLOGICAL SURVEY CIRCULAR 949, P. 12-13.SEVERSON, M.J., 1994, IGNEOUS STRATIGRAPHY OF THE SOUTH KAWISHIWI INTRUSION, DULUTH COMPLEX, NORTHEASTERN MINNESOTA: [MINNESOTA] NATURAL RESOURCES RESEARCH INSTITUTE, UNIVERSITY OF MINNESOTA, TECHNICAL REPORT, NRRI/TR-93/34, 210 P.HAUCK AND OTHERS, IN PRESS.