| Deposit ID | 10043135 |
|---|---|
| MRDS ID | M061643 |
| Record type | Site |
| Current site name | Black Bear No. 1 & 2 |
| Alternate or previous names | Black Bear Chrome |
| Related records | 10274333 |
| Geographic coordinates: | -123.81144, 42.01676 (WGS84) |
|---|---|
| Elevation | 823 |
| Relative position | 10 MILES SE CHETCO PEAK |
Political divisions (FIPS codes)
Josephine(county)
Oregon(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Buckskin 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 | 041S | 009W | 07 | SW4 OF NE4 OF SE4 OF NW4 | Oregon |
| Commodity | Importance |
|---|---|
| Chromium Critical | Primary |
| Rhodium Critical | Secondary |
| Platinum Critical | Tertiary |
| Palladium Critical | Tertiary |
| Iridium Critical | Tertiary |
| Ruthenium Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chromite | Ore |
| Olivine | Gangue |
| Result | 1 PGE ANALYSIS: PT=<10 PPB |
|---|---|
| Result | PD=<4 PPB |
| Result | IR=20 PPB |
| Result | RU=200 PPB |
| Result | RH=16 PPB. |
| Model code | 15 |
|---|---|
| USGS model code | 8a |
| Deposit model name | Podiform chromite (minor) |
| Mark3 model number | none |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite |
| Rock unit name | Josephine Ophiolite;Josephine Ophiolite |
| Rock description | Josephine Ophiolite;Josephine Ophiolite |
| (1) | -123.81144, 42.01676 |
|---|
| General form | DISSEMINATED |
|---|---|
| Strike | NORTH |
| Dip | 50W |
| Width | 0.1M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Waldo Area |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | Siskiyou National Forest |
| Type | Owner |
|---|---|
| Owner | Myrtle Creek Mining Co. |
| First year | 1961 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M061643 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0410330549 |
RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 52, P. 157.
PAGE, N.J, JOHNSON, M.G., HAFFTY, JOSEPH, AND RAMP, LEN, 1975, OCCURRENCE OF PLATINUM GROUP METALS IN ULTRAMAFIC ROCKS OF THE MEDFORD-COOS BAY 2 DEGREE QUADRANGLES, SOUTHWESTERN OREGON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-694, SCALE 1:250,000.
RAMP, LEN, AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES BULLETIN 100, TABLE 1.
CARLSON, C.A., AND OTHERS, 1985, ANALYSES FOR PLATINUM GROUP ELEMENTS IN SAMPLES FROM PODIFORM CHROMITE DEPOSITS, CALIFORNIA AND OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-442, 14 P.
| Subject category | Comment text |
|---|---|
| Deposit | SEVERAL BANDS OF DISSEMINATED CHROMITE LESS THAN 4 IN. WIDE. ODGMI'S MILOC FILE INDICATES PRESENCE OF MASSIVE ORE AS WELL. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-1976 | Johnson, Maureen G. | U.S. Geological Survey | |
| Updater | 01-FEB-1981 | Ferns, Mark L. (Brooks, Howard C.) | Oregon Department of Geology and Mineral Industries | |
| Updater | 01-MAY-1989 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.