| Deposit ID | 10014573 |
|---|---|
| MRDS ID | D011403 |
| Record type | Site |
| Current site name | Unnamed Thorium Prospects |
| Geographic coordinates: | -107.02284, 38.22556 (WGS84) |
|---|---|
| Elevation | 2890 |
| Relative position | 22.3 MILES S 14 W FROM GUNNISON |
Political divisions (FIPS codes)
Gunnison(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Rudolph Hill(quadrangle 1:24,000 scale)
Montrose(quadrangle 1:100,000 scale)
Montrose(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Gunnison(hydrologic unit)
Gunnison(hydrologic accounting unit)
Gunnison(hydrologic subregion)
Upper Colorado(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management CO)
Bureau of Land Management CO BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Colorado | Gunnison |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| New Mexico | 046N | 1.5W | 24 | SW OF SW NE | Colorado |
| Commodity | Importance |
|---|---|
| Thorium | Primary |
| Copper | Tertiary |
| Lead | Tertiary |
| Zinc Critical | Tertiary |
| REE Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Thorite | Ore |
| Barite | Gangue |
| Chalcopyrite | Gangue |
| Fluorite | Gangue |
| Galena | Gangue |
| Goethite | Gangue |
| Hematite | Gangue |
| Jasper | Gangue |
| Magnetite | Gangue |
| Pyrite | Gangue |
| Quartz | Gangue |
| Rutile | Gangue |
| Specularite | Gangue |
| Sphalerite | Gangue |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite | ||||
| Rock unit name | Powderhorn Granite;Thorium Vein | ||||
| Rock description | Powderhorn Granite;Thorium Vein | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite |
| (1) | -107.02284, 38.22556 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Gunnison Uplift, San Juan Volcanic Field |
| Type of structure | Local |
| Structure description | Iron Hill Alkalic Complex, Cimarron Fault, Powderhorn Stock |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | White Earth (Powderhorn) District |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D011403 |
OLSON, J.C., 1974, GEOLOGIC MAP OF THE RUDOLPH HILL QUADRANGLE, GUNNISON, HINSDALE, AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1177.
HEDLUND, D.C., AND OLSON, J.C., 1961, FOUR ENVIRONMENTS OF THORIUM-, NIOBIUM-, AND RARE-EARTH-BEARING MINERALS IN THE POWDERHORN DISTRICT OF SOUTHWESTERN COLORADO: USGS PROF. PAPER 424-B, P. B283-B286.
| Subject category | Comment text |
|---|---|
| Deposit | THORIUM VEINS IN THIS AREA ARE ONE OF FOUR ENVIRONMENTS OF TH OCCURRENCE KNOWN IN THE POWDERHORN-IRON HILL AREA AND ARE PROBABLY RELATED TO EMPLACEMENT OF LATE PRECAMBRIAN SYENITES NORTH AND WEST OF IRON HILL AND OF YOUNGER LATE PRECAMBRIAN OR CAMBRIAN CARBONATITES AT IRON HILL. PINK TO RED ORTHOCLASE IS COMMON AS LARGE LATHS OR AS CLUSTERS OF SUBHEDRAL TO ANHEDRAL GRAINS. ADJACENT TO MOST VEINS, WALL ROCKS ARE PARTLY REPLACED BY ORTHOCLASE (FENITELIKE REPLACEMENT). VERY FINE-GRAINED THORITE IS INTERGROWN WITH FE OXIDES. FOLIATION IN GRANITE TRENDS GENERALLY EAST-WEST, DIPPING 85 SOUTH. VEIN TRENDS N 58 E, 65 NW. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-1984 | Schwochow, Stephen D. | Colorado Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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