| Deposit ID | 10101866 |
|---|---|
| MRDS ID | D010763 |
| Record type | Site |
| Current site name | N.A. Cowdrey Mine |
| Alternate or previous names | Patented Claim: N.A. Cowdrey, Ms 6317 |
| Related records | 10239181 |
| Geographic coordinates: | -108.03732, 37.68307 (WGS84) |
|---|---|
| Elevation | 2701 |
| Relative position | 0.78 MILES S 34 W FROM RICO |
Political divisions (FIPS codes)
Dolores(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Rico(quadrangle 1:24,000 scale)
Dove Creek(quadrangle 1:100,000 scale)
Cortez(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Dolores(hydrologic unit)
Upper Colorado-Dolores(hydrologic accounting unit)
Upper Colorado-Dolores(hydrologic subregion)
Upper Colorado(hydrologic region)
Federal lands
San Juan National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | Dolores |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| New Mexico | 040N | 011W | 35 | S2 OF S2 | Colorado |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Primary |
| Zinc Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Pyrite | Ore |
| Sphalerite | Ore |
| Quartz | Gangue |
| Model code | 72 |
|---|---|
| USGS model code | 19a |
| Deposit model name | Polymetallic replacement |
| Mark3 model number | 47 |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Monzonite | ||||||
| |||||||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite |
| Rock unit name | Hornblende Latite Porphyry;Augite Monzonite |
| Rock description | Hornblende Latite Porphyry;Augite Monzonite |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale |
| Rock unit name | Hermosa Formation |
| Rock description | Hermosa Formation |
| (1) | -108.03732, 37.68307 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | San Juan Uplift, Paradox Basin |
| Type of structure | Local |
| Structure description | Rico Dome |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Pioneer (Rico) District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | San Juan N. F. |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010763 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0080330062 |
RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN. REPT., PT. 2, P.359.
MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723.
PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS MAP GQ-797.
CROSS, WHITMAN, 1905, DESCRIPTION OF THE RICO QUADRANGLE: USGS FOLIO 130.
BLM MINERAL SURVEY MS 6317
| Subject category | Comment text |
|---|---|
| Deposit | LOWER HERMOSA FM SANDSTONES AND SHALES STRIKE ABOUT N 60 W, 15 SW. TUNNEL FOLLOWS IRREGULAR LOW-GRADE ORE OF PYRITE, GALENA, AND SPHALERITE IN QUARTZ GANGUE. LODE OFTEN SPLITS INTO IRREGULAR DISCONTINUOUS STRINGERS. BLANKET (REPLACEMENT) ORE LIES NEAR BOTTOM OF 1.5-FT-THICK, CRUSHED, QUARTZ-VEINED, SHALE BED ON SANDSTONE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-SEP-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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