| Deposit ID | 60000949 |
|---|---|
| MRDS ID | M045489 |
| Record type | District |
| Current site name | Stillwater Complex |
| Point of reference | Centroid |
|---|---|
| Geographic coordinates: | -110.00079, 45.41662 (WGS84) |
| Location accuracy | 100(meters) |
| Relative position | MOST OF AREA IS UNSURVEYED. LOCATION GIVEN IS APPROXIMATE FOR CENTER OF COMPLEX., ACCURATE WITHIN COMPLEX |
Political divisions (FIPS codes)
Sweet Grass(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Picket Pin Mountain(quadrangle 1:24,000 scale)
Gardiner(quadrangle 1:100,000 scale)
Bozeman(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Stillwater(hydrologic unit)
Upper Yellowstone(hydrologic accounting unit)
Upper Yellowstone(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Custer Gallatin National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Montana | Sweet Grass |
| United States | Montana | Stillwater |
| Commodity | Importance |
|---|---|
| Nickel Critical | Primary |
| Platinum Critical | Primary |
| Copper | Primary |
| Chromium Critical | Primary |
| Palladium Critical | Primary |
| Iridium Critical | Tertiary |
| Aluminum Critical | Tertiary |
| Gold | Tertiary |
| Osmium | Tertiary |
| Cobalt Critical | Tertiary |
| Silver | Tertiary |
| Rhodium Critical | Tertiary |
| Model code | 4 |
|---|---|
| USGS model code | 2b |
| Deposit model name | Merensky Reef PGE |
| Model code | 1 |
| USGS model code | 1 |
| Deposit model name | Stillwater Ni-Cu |
| Model code | 2 |
| USGS model code | 2a |
| Deposit model name | Bushveld Cr |
| Centroid (1) | -110.00079, 45.41662 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | CUMULATE LAYERING, NUMEROUS FAULTS OFFSETTING MINERALIZED LAYERS |
| Type of structure | Regional |
| Structure description | 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) |
| Operation type | Underground |
|---|---|
| Development status | Producer |
| Significant | Yes |
| Discovery year | 1883 |
| District name | Stillwater |
|---|
| Type of mineral rights | Located Claim |
|---|---|
| Type of mineral rights | Patented |
| Ownership category | National Forest |
|---|---|
| Area name | Custer National Forest |
| Type | Operator |
|---|---|
| Owner | STILLWATER MINING CO. |
| Year | 1991 |
PAGE, N.J, AND NOKLEBERG, W.J., 1974, GEOLOGIC MAP OF THE STILLWATER COMPLEX, MONTANA: US.S GEOLOGICAL SURVEY MISCELLANEOUS GEOLOGIC INVESTIGATIONS MAP 1-797, SCALE 1:12,000.
CABRI, L.J., AND LAFLAMME, J.H.G., 1974, RHODIUM, PLATINUM, AND GOLD ALLOYS FROM THE STILLWATER COMPLEX, MONTANA: CANADIAN MINERALOGIST, V.12, P. 399-403.
CABRI, L.J., LAFLAMME, J.H.G., STEWART, J.M., AND CHEN, T.T., 1975, NEW DATA ON SOME ARSENIDES AND ANTIMONIDES: CANADIAN MINERALOGIST, V. 13, P. 321-335.
ENGINEERING AND MINING JOURNAL, 1975, JOHNS-MANSVILLE FINDS GOOD PLATINUM-PALLADIUM VALUES IN MONTANA'S STILLWATER: ENGINEERING AND MINING JOURNAL, V. 176, NO. 2, P. 36.
CZAMANSKE, G.K., AND ZIENTEK, M.L., EDS., 1985, THE STILLWATER COMPLEX, MONTANA: GEOLOGY AND GUIDE: MONTANA BUREAU OF MINES AND GEOLOGY SPECIAL PUBLICATION 92, 396 P.
ZIENTEK, 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 ABSAROKA-BEARTOOTH STUDY AREA, CUSTER AND GALLATIN NATIONAL FORESTS, MONTANA: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 93-207, P. F1-F83.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Updater | 05-JAN-11 | Causey, J. Douglas | U.S. Geological Survey | This record came from the old MRDS database without a reporter. I did some minor updates. |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.