| Deposit ID | 10042339 |
|---|---|
| MRDS ID | M060091 |
| Record type | Site |
| Current site name | East Boulder River-Chrome Queen |
| Alternate or previous names | Chrome Queen, Forge Creek |
| Related records | 10221846 |
| Geographic coordinates: | -110.10358, 45.42742 (WGS84) |
|---|---|
| Elevation | 2780 |
| Location accuracy | 100(meters) |
| Relative position | 28 AIR MI SOUTHEAST OF LIVINGSTON. 1 MI WEST OF THE EAST BOULDER RIVER, Acc Generalized Location For Chromitite On Chrome Queen No. 9 Claim Near Usbm Trench |
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)
Upper Yellowstone(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 |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 005S | 013E | 03 | Montana |
| Materials | Type of material |
|---|---|
| Chromite | Ore |
| Olivine | Gangue |
| Result | AVERAGE: 22.6% CR2O3, RANGE: 1.65-34.61% |
|---|
| 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) | -110.10358, 45.42742 |
|---|
| 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 | Cross-Faulting Offsets Chromitite Layers |
| General form | LENSES |
|---|---|
| Thickness | 0.38M |
| Length | 304.8M |
| Depth to top | 0M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1940 |
| Discoverer | Montana Chrome Corp |
| District name | In Stillwater Complex |
|---|
| Ownership category | National Forest |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M060091 |
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. 39-40.
HOWLAND, A.L., 1955, CHROMITE DEPOSITS IN THE CENTRAL PART OF THE STILLWATER COMPLEX, SWEET GRASS COUNTY, MONTANA: U.S. GEOLOGICAL SURVEY BULLETIN 1015-D, P. 112-113.
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.
1955 GEOLMAP HOWLAND, BULL 1015-D, P. 112
TRENCHING AND ANALYSES BY THE USBM DURING WWII
| Subject category | Comment text |
|---|---|
| Deposit | G ZONE MASSIVE ORE MAX THICKNESS, DISSEMINATED ZONE UP TO 5 FT THICK WITH 10-20% CHROMITE. CHROMITE CROPS OUT WITHIN A 2.5 MI AREA |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JAN-73 | Dohrenwend, John C. | U.S. Geological Survey | |
| Updater | 01-FEB-80 | Doyle, Brien (Wells, John) | U.S. Geological Survey | |
| Updater | 01-AUG-91 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.