| Deposit ID | 10014086 |
|---|---|
| MRDS ID | D010710 |
| Record type | Site |
| Current site name | Mt. Eolus Mine |
| Geographic coordinates: | -107.61035, 37.61668 (WGS84) |
|---|---|
| Elevation | 3584 |
| Relative position | 13.4 MILES S 13 E FROM SILVERTON |
Political divisions (FIPS codes)
La Plata(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Columbine Pass(quadrangle 1:24,000 scale)
Silverton(quadrangle 1:100,000 scale)
Durango(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Animas(hydrologic unit)
Upper San Juan(hydrologic accounting unit)
San Juan(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)
Weminuche Wilderness(Wilderness)
Wilderness FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | La Plata |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| New Mexico | 039N | 007W | 26 | NW OF SW | Colorado |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Gold | Secondary |
| Copper | Secondary |
| Lead | Secondary |
| Zinc Critical | Secondary |
| Materials | Type of material |
|---|---|
| Sphalerite | Ore |
| Calcite | Gangue |
| Fluorite | Gangue |
| Quartz | Gangue |
| Rhodochrosite | Gangue |
| Result | STEVEN AND OTHERS' (1969) SAMPLE OF QUARTZ VEIN AT FACE OF UPPER DRIFT CONTAINED TRACE AU, 3.52 OZ/TON AG, TRACES OF CU, PB, AND ZN. SEMIQUANTITATIVE SPECTROGRAPHIC ANSLYSES OF TWO SAMPLES OF QUARTZ VEIN MATERIAL CONTAINED 50 AND 2000 PPM TI, 500 AND GT 5000 PPM MN, 7 AND 50 PPM AG, LT 200 PPM AS, 70 AND 1000 PPM BA, LT 10 PPM BI, LT 20 PPM CD, LT 5AND 5 PPM CR, LT 5 AND 300 PPM MO, 100 AND 300 PPM PB, LT 100 PPM SB, LT 10 PPM SN, LT 100 AND 500 PPM SR, 10 AND 50 PPM V, LT 50 PPM W, LT 200 PPM ZN |
|---|---|
| Result | CHEMICAL ANALYSES SHOWED LT 0.02 AND 0.08 PPM AU, 10 AND 430 PPM CU, 30 AND 190 PPM PB, 40 AND 200 PPM ZN. |
| Model code | 85 |
|---|---|
| USGS model code | 22c |
| Deposit model name | Polymetallic veins |
| Mark3 model number | 46 |
| Host or associated | Associated | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| Host or associated | Associated | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite | ||||||||||||
| |||||||||||||
| Host or associated | Associated | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite | ||||||||||||||||||||||||||||||||
| Rock unit name | Eolus Granite;Intrusive Bodies And Related Rocks (Younger And Older Bodies Of Chicago Basin Stock) | ||||||||||||||||||||||||||||||||
| Rock description | Eolus Granite;Intrusive Bodies And Related Rocks (Younger And Older Bodies Of Chicago Basin Stock) | ||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| Host or associated | Host | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| Host or associated | Host | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite | ||||||||||||||||||||||||||||||||
| Rock unit name | Eolus Granite | ||||||||||||||||||||||||||||||||
| Rock description | Eolus Granite | ||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| (1) | -107.61035, 37.61668 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | San Juan Uplift, San Juan Basin, San Juan Volcanic Field |
| Type of structure | Local |
| Structure description | Needle Mtns Uplift, Chicago Basin Stock, Eolus Batholith, Trimble Stock |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Needle Mountain (Tacoma, Florida, Vallecito) District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | San Juan N. F. |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010710 |
SCHMITT, L.J., AND RAYMOND, W.H., 1977, GEOLOGY AND MINERAL DEPOSITS OF THE NEEDLE MOUNTAINS DISTRICT, SOUTHWESTERN COLORADO: USGS BULL. 1434, 40 P.
STEVEN, T.A., AND OTHERS, 1969, MINERAL RESOURCES OF THE SAN JUAN PRIMITIVE AREA, COLORADO: USGS BULL. 1261-F, P. 30-32, 55-67, 94, 162-163.
CROSS, WHITMAN, AND OTHERS, 1905, DESCRIPTION OF THE NEEDLE MOUNTAINS QUADRANGLE, COLORADO: USGS FOLIO 131.
| Subject category | Comment text |
|---|---|
| Deposit | MINE DEVELOPED ON TWO VEINS TRENDING N 50 W AND N 65 E, 83 NW, BOTH IN THE EAST-WEST-TRENDING FRACTURES OF THE REGIONAL RECTANGULAR SYSTEM |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1983 | Schwochow, Stephen D. | Colorado Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.