| Deposit ID | 10101907 |
|---|---|
| MRDS ID | D011619 |
| Record type | Site |
| Current site name | Pearl and Ruby Groups |
| Alternate or previous names | Patented Claims: Pearl, MS 12860, Ruby, MS 12860 |
| Geographic coordinates: | -107.53814, 37.965 (WGS84) |
|---|---|
| Elevation | 3978 |
| Relative position | 12.8 MILES S 70 W FROM LAKE CITY |
Political divisions (FIPS codes)
Hinsdale(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Handies Peak(quadrangle 1:24,000 scale)
Silverton(quadrangle 1:100,000 scale)
Durango(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 | Hinsdale |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| New Mexico | 043N | 006W | 21 | SW | Colorado |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Secondary |
| Zinc Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Galena | Ore |
| Sphalerite | Ore |
| Quartz | Gangue |
| Result | VEIN ASSAYED 7 TO 9 OZ/TON AG, 35% PB, 20% ZN |
|---|
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite | ||||||
| |||||||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite |
| Rock unit name | Biotite-Quartz Latite Of Burns Member Of Silverton Volcanics;Eureka Member Of Sapinero Mesa Tuff |
| Rock description | Biotite-Quartz Latite Of Burns Member Of Silverton Volcanics;Eureka Member Of Sapinero Mesa Tuff |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite |
| Rock unit name | Tuffaceous Sandstone Of Henson Member Of Silverton Volcanics |
| Rock description | Tuffaceous Sandstone Of Henson Member Of Silverton Volcanics |
| (1) | -107.53814, 37.965 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | San Juan Volcanic Field, San Juan Depression |
| Type of structure | Local |
| Structure description | San Juan-Uncompahgre Calderas, Lake City Caldera, Eureka Graben |
| Thickness | 1.22M |
|---|
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Galena (Henson Creek) District |
|---|
| Ownership category | Private |
|---|
| Type | Operator |
|---|---|
| Owner | Horseshoe Consolidated Gold Mining And Milling Co. |
| Home office | Pueblo, Co. |
| First year | 1925 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D011619 |
LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO USGS MAP I-962.
CROSS, WHITMAN, AND OTHERS, 1905, DESCRIPTION OF THE SILVERTON QUADRANGLE; USGS FOLIO 120, 34 P.
BROWN, W.H., 1926, THE MINERAL ZONES OF THE WHITE CROSS DISTRICT AND NEIGHBORING DEPOSITS IN HINSDALE COUNTY, COLORADO: MINES MAG., V. 15, NO. 11, P. 5-15.
COLORADO DIV. MINES INF. REPTS.
BLM MINERAL SURVEY MS 12860
| Subject category | Comment text |
|---|---|
| Deposit | MINE DEVELOPED ON FAULT TOWARD NW SIDE OF EUREKA GRABEN AND TRENDS GENERALLY N 80 E, DISPLACING (DOWNDROPPING) BURNS MBR QUARTZ LATITE AND UNDERLYING HENSON MBR SANDSTONE ON NW AGAINST EUREKA MBR RHYOLITE ON SE. NO DETAILED DESCRIPTION OF VEIN IS AVAILABLE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-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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