Commodities
PrimaryPGE, Nickel, 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 mineralsCubanite, Chalcopyrite, Bornite, Pentlandite, Pyrrhotite
Geology
Host rockTroctolite · Partridge River 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.
Economic & production
Development statusUnknown
Identification
Deposit ID10082825
MRDS IDW062179
RegionNA
Data scoreB
Coordinates47.58222, -92.03768
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.HAUCK AND OTHERS, IN PRESS.