| Location: | Lake County, Minnesota, United States, North America |
| Lat / long: | 47.82167, -91.67378 |
| dep_id: | 10048466 |
| mrds_id: | MP00053 |
| Commodity type: | metallic |
| Major mineral: | Copper, Nickel |
| Minor mineral: | Palladium, Platinum, Gold, Silver, Cobalt |
| Operation type: | Unknown |
| Production size: | No production occurred |
| Development status: | Prospect |
| ore: | Bornite, Chalcocite, Chalcopyrite, Covellite, Cubanite, Digenite, Galena, Millerite, Niccolite, Pentlandite, Pyrrhotite, Sperrylite, Sphalerite |
| gangue: | Biotite, Chlorite, Iddingsite, Ilmenite, Magnetite, Sericite, Serpentine, Stilpnomelane |
| orebody_fm: | DISSEMINATED, DISCONTINUOUS VEINLETS |
| model: | 9: Duluth Cu-Ni-PGE |
| alteration: | Serpentine/Mica Assemblage, Later Argillic Alteration, Localized Hematitic Alteration, Greenschist Facies Assemblage |
| conc_proc: | Magmatic Segregation |
| ore_ctrl: | Sulfide Distribution Controlled By Texture (Pegmatitic Zones) And Structure (Amount Of Fine-Grained Fractures). Overall Distribution Controlled By A Northwest-Trending Fracture Zone. Faults And Folds Were Responsible For Localizing Sulfide Mineralization As Well As For Providing Conduits For Later Syn- To Post-Magmatic Hydrothermal Fluids. |
| Reporter: | Peterson, Jocelyn A., Woodruff, L.G. |
| hrock_unit: | South Kawishiwi Intrusion |
| hrock_type: | Troctolite |
| arock_unit: | Giants Range Batholith |
| arock_type: | Granite |
| disc_yr: | 1967 |
| discr: | Hanna Mining Co. |
| References: |
- Analytical Data:: KUHNS AND OTHERS, 1990; MORTON AND HAUCK, 1989; HAUCK AND BARNES, 1989
- Deposit:: KUHNS, M.J.P., HAUCK, S.A., AND BARNES, R.J., 1990, ORIGIN AND OCCURRENCE OF PLATINUM GROUP ELEMENTS, GOLD AND SILVER IN THE SOUTH FILSON CREEK COPPER-NICKEL MINERAL DEPOSIT, LAKE COUNTY, MINNESOTA: NATURAL RESOURCES RESEARCH INSTITUTE TECHNICAL REPORT NRRI/GMIN-TR-89-15, 60 P.
- Deposit:: MORTON, PENELOPE, AND HAUCK, S.A., 1989, PRECIOUS METALS IN THE COPPER-NICKEL DEPOSITS OF THE DULUTH COMPLEX, IN MOREY, G.B., ED., WORKSHOP ON THE APPLICABILITY OF GOLD AND PLATINUM-GROUP-ELEMENT MODELS IN MINNESOTA: MINNESOTA GEOLOGICAL SURVEY INFORMATION CIRCULAR 30, P. 47-48.
- Deposit:: HAUCK, S.A., AND BARNES, R.J., 1989, PRECIOUS METALS (PT-PD-AU-AG) IN THREE COPPER-NICKEL DEPOSITS IN THE DULUTH COMPLEX: NATURAL RESOURCES RESEARCH INSTITUTE, CENTER FOR APPLIED RESEARCH AND TECHNOLOGY DEVELOPMENT, TECHNICAL SUMMARY REPORT NRRI/GMIN-TSR-89-1, 19 P.
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