| Deposit ID | 10043140 |
|---|---|
| MRDS ID | M061649 |
| Record type | Site |
| Current site name | Eight Dollar Mountain |
| Alternate or previous names | Eight Dollar No. 1, Nickel-Chrome Group |
| Geographic coordinates: | -123.66366, 42.2376 (WGS84) |
|---|---|
| Elevation | 792 |
| Relative position | S.W. OF SELMA ON US 199 ABOUT 24 MILES FROM GRANTS PASS |
Political divisions (FIPS codes)
Josephine(county)
Oregon(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Cave Junction(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 | 38S | 08W | 08,09,10,15,16,17 | Oregon |
| Commodity | Importance |
|---|---|
| Chromium Critical | Primary |
| Nickel Critical | Tertiary |
| Cobalt Critical | Tertiary |
| Iron | Tertiary |
| Materials | Type of material |
|---|---|
| Chromite | Ore |
| Garnierite | Ore |
| Result | DISSEMINATED CHROMITE IN DUNITE: 22.81% CR2O3, 9.09% FE |
|---|---|
| Result | MASSIVE CHROMITE WITH SOME DUNITE -43.30% CR2O3, 10.60% FE NORTHERN LATERITE DEPOSIT HAS INDICATED AVERAGE GRADE OF 1.18 NI, 0.08 % CO, 24.6 % FE, AND 1.17 % CR. |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase | ||||||||
| Rock unit name | Rogue Formation | ||||||||
| Rock description | Rogue Formation | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite |
| Rock unit name | Josephine Peridotite |
| Rock description | Josephine Peridotite |
| (1) | -123.66366, 42.2376 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | High-Angle, West Dipping Fault, And High-Angle, Northeast Trending Fault |
| General form | SEAMS, BANDS, VEINLIKE |
|---|---|
| Thickness | 27.43M |
| Length | 457.2M |
| Width | 1188.72M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Medium |
| Significant | No |
| Discovery year | 1942 |
| Discoverer | Freeport Sulfur Company |
| District name | Illinois River |
|---|
| Ownership category | Federal |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M061649 |
RAMP, LEN, 1961, CHROMITE IN SOUTHWESTERN OREGON: OREGON DEPT. GEOLOGY AND MINERAL IND. BULL. 52, 169 P.
THAYER, T. P., 1974, UNPUBL. DATA
OREGON METAL MINES HANDBOOK, 1952 , ODGMI BULL. 14-C, V. 2 , SEC. 1 , P. 137 .
RAMP, LEN, 1978 , INVESTIGATIONS OF NICKEL IN OREGON: ODGMI MISC. PAPER NO. 20 , P. 29 - 31
5) RAMP, L. AND PETERSON, N.V., 1979, GEOLOGY AND MINERAL RESOURCES OF JOSEPHINE COUNTY, OREGON; ODGMI BULL. 100, P.37
1953 GEOLMAP CLIMAX MOLYBDENUM COMPANY
1957 DIREXPL NEW DELHI MINES, LTD.
1978 GEOLMAP ODGMI-LEN RAMP
| Subject category | Comment text |
|---|---|
| Deposit | RECORDS ( M013268 ) AND ( M013510 ) MERGED WITH THIS RECORD AND DELETED FROM OREGON FILE. |
| Deposit | APPEAR TO BE REMNANTS OF OLD LANDSLIDE OR SLUMP. ESTIMATED AVERAGE UNWEATHERED ROCK CONTENT IN SOIL OF NORTHERN AREA IS 35 % AND IN SOUTHERN AREA 45 % BY VOLUME. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-1981 | Bradley, Robin | U.S. Geological Survey | |
| Updater | 01-JUL-1987 | Walker, G. W. (Brooks, Howard C.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.