| Deposit ID | 10109709 |
|---|---|
| MRDS ID | M061603 |
| Record type | Site |
| Current site name | Jim Bus |
| Alternate or previous names | Illinois Chrome Mine, Robbin |
| Related records | 10274429 |
| Geographic coordinates: | -123.77422, 42.34065 (WGS84) |
|---|---|
| Elevation | 293 |
Political divisions (FIPS codes)
Josephine(county)
Oregon(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Pearsoll Peak(quadrangle 1:24,000 scale)
Grants Pass(quadrangle 1:100,000 scale)
Medford(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Illinois(hydrologic unit)
Southern Oregon Coastal(hydrologic accounting unit)
Oregon-Washington Coastal(hydrologic subregion)
Pacific Northwest(hydrologic region)
Federal lands
Rogue River-Siskiyou National Forests(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Oregon | Josephine |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 037S | 009W | 21 | Oregon |
| Commodity | Importance |
|---|---|
| Chromium Critical | Primary |
| Materials | Type of material |
|---|---|
| Chromite | Ore |
| Talc | Gangue |
| Result | 48.87% CR2O3 |
|---|---|
| Result | 13% FE |
| Result | 42.69% CR2O3 |
| Result | 12.56% FE (HAD MORE TALC) |
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite |
| (1) | Granite and diorite |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Shear Zone - N75w, 77sw Dip |
| General form | LENS |
|---|
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Central Illinois River |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | Siskiyou National Forest |
| Year | 1943 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | ORE | ||||||||||||||
| Accuracy | Estimate | ||||||||||||||
| Description | Ap_Grade: ^47. % Cr2o3 | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M061603 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0410330290 |
RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPT. GEOLOGY AND MINERAL IND. BULL. 52, 169 P.
THAYER, T. P., 1974, UNPUBL. DATA
RAMP, L. AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON; ODGMI BULL. 100, 45P
| Subject category | Comment text |
|---|---|
| Deposit | RECORD NUMBER (M013638) HAS BEEN MERGED WITH THIS RECORD AND DELETED FROM THE OREGON FILE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JAN-1973 | Unknown | U.S. Geological Survey | |
| Updater | 01-MAR-1981 | Ferns, Mark L. (Brooks, Howard C.) | U.S. Geological Survey | |
| Updater | 01-AUG-1993 | Gray, Jerry J. | Oregon Department of Geology and Mineral Industries |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.