| Deposit ID | 10013979 |
|---|---|
| MRDS ID | D010559 |
| Record type | Site |
| Current site name | A. L. Stein Ranch Uranium Prospect |
| Alternate or previous names | Stein Ranch Uranium Prospect |
| Geographic coordinates: | -105.23392, 40.57276 (WGS84) |
|---|---|
| Elevation | 1929 |
| Relative position | 7.8 MILES S85W FROM FORT COLLINS |
Political divisions (FIPS codes)
Larimer(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Horsetooth Reservoir(quadrangle 1:24,000 scale)
Fort Collins(quadrangle 1:100,000 scale)
Greeley(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Big Thompson(hydrologic unit)
South Platte(hydrologic accounting unit)
South Platte(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Arapaho and Roosevelt National Forests(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | Larimer |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 007N | 070W | 15 | NW OF SW | Colorado |
| Commodity | Importance |
|---|---|
| Uranium | Primary |
| Materials | Type of material |
|---|---|
| Torbernite | Ore |
| Result | BACKGROUND RADIATION 0.015 MR/HR, RANGE 0.3 TO 1.0 MR/HR |
|---|
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||
| Rock unit name | Pegmatite;Boulder Creek Grandiorite | ||||
| Rock description | Pegmatite;Boulder Creek Grandiorite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist |
| Rock unit name | Quartzofeldspathic Schist And Gneiss;Pegmatite |
| Rock description | Quartzofeldspathic Schist And Gneiss;Pegmatite |
| (1) | -105.23392, 40.57276 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Front Range Uplift, Cheyenne Basin |
| Type of structure | Local |
| Structure description | Big Thompson Anticline, Nw-Trending Faults |
| General form | IRREGULAR |
|---|
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Horsetooth Mountain Area |
|---|
| Ownership category | Private |
|---|
| Type | Operator |
|---|---|
| Owner | A. L. Stein, R. C. Mc Call, Frank J. Yausse |
| Home office | Fort Collins, Co. |
| First year | 1956 |
| Type of workings | Surface |
|---|---|
| Overall depth | 2.44M |
| Overall length | 60.96M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010559 |
NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENC ES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 208.
COLTON, R.B., 1978, GEOLOGIC MAP OF THE BOULDER-FORT COLLINS-GREELE Y AREA, COLORADO: USGS MAP I-855-G.
MALAN, R.C., AND CAMPBELL, G., 1956, AEC PRELIM. RECON. REPT. DAO-P -3-1852.
| Subject category | Comment text |
|---|---|
| Deposit | OXIDIZED URANIUM OCCURS AS FRACTURE AND GRAIN COATINGS IN SMALL I RREGULAR ZONES IN RELATIVELY UNALTERED PEGMATITE CUTTING BIOTITE SCHIS T AND GRANODIORITE. VERTICAL JOINTS TRENDING N52 TO 80E DELIMIT MINERA LIZED ZONE BUT ARE NOT CONTINUOUS. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1983 | Schwochow, Stephen D. | Colorado Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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