| Deposit ID | 10042343 |
|---|---|
| MRDS ID | M060096 |
| Record type | Site |
| Current site name | Nye Basin Big Seven |
| Related records | 10124571 |
| Geographic coordinates: | -109.81996, 45.3727 (WGS84) |
|---|---|
| Elevation | 2438 |
| Relative position | ABOUT 1.75 MI NORTHWEST OF CHROME LAKE |
Political divisions (FIPS codes)
Stillwater(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mount Wood(quadrangle 1:24,000 scale)
Red Lodge(quadrangle 1:100,000 scale)
Billings(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 | Stillwater |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 005S | 015E | 25,26 | Montana |
| Materials | Type of material |
|---|---|
| Chromite | Ore |
| Olivine | Gangue |
| Serpentine | Gangue |
| Result | AVERAGE CR2O3=26.0% |
|---|
| Model code | 2 |
|---|---|
| USGS model code | 2a |
| Deposit model name | Bushveld Cr |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Ultramafic Intrusive Rock > Peridotite | ||||
| |||||
| (1) | -109.81996, 45.3727 |
|---|
| 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) |
| Type of structure | Local |
| Structure description | Local Faults With Minor Offset |
| General form | MASSIVE BAND AND DISSEMINATED |
|---|---|
| Thickness | 19.2M |
| Length | 152.4M |
| Depth to top | 0M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | In Stillwater Complex |
|---|
| Ownership category | National Forest |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M060096 |
WIMMLER, N.L., 1948, INVESTIGATION OF CHROMITE DEPOSITS OF THE STILLWATER COMPLEX, STILLWATER AND SWEETGRASS COUNTIES, MONT.: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 4368, P. 26-29.
PEOPLES, J.W., AND HOWLAND, A.L., 1941, CHROMITE DEPOSITS OF THE EASTERN PART OF THE STILLWATER COMPLEX, STILLWATER COUNTY, MONTANA: U.S. GEOLOGICAL SURVEY BULLETIN 922-N, P. 411-413.
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.
SHAFER, P.A., 1937, CHROMITE DEPOSITS OF MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY MEMOIR 18, P. 18-19.
| Subject category | Comment text |
|---|---|
| Deposit | THICKNESS IS FOR BOTH MASSIVE AND DISSEMINATED ORE. TWO MASSIVE BANDS ARE PRESENT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JAN-1973 | Dohrenwend, John C. | U.S. Geological Survey | |
| Updater | 01-AUG-1991 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.