| Deposit ID | 10014166 |
|---|---|
| MRDS ID | D010822 |
| Record type | Site |
| Current site name | Gold Bar Placer |
| Geographic coordinates: | -108.06287, 37.31195 (WGS84) |
|---|---|
| Elevation | 2573 |
| Relative position | 10.15 MILES N 77 W FROM DURANGO |
Political divisions (FIPS codes)
La Plata(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Hesperus(quadrangle 1:24,000 scale)
Cortez(quadrangle 1:100,000 scale)
Cortez(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Middle San Juan(hydrologic unit)
Upper San Juan(hydrologic accounting unit)
San Juan(hydrologic subregion)
Upper Colorado(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Colorado | La Plata |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| New Mexico | 036N;035N | 011W;011W | 28,32,33;03,04,09,10 | Colorado |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Unconsolidated Deposit > Sand and Gravel | ||||
| Rock unit name | Glacial Outwash | ||||
| Rock description | Glacial Outwash | ||||
| |||||
| (1) | -108.06287, 37.31195 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | San Juan Uplift, Four Corners Platform |
| Type of structure | Local |
| Structure description | La Plata Dome |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | California (La Plata) District |
|---|
| Ownership category | Private |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010822 |
ECKEL, E.B., AND OTHERS, 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 76.
PARKER, B.H., JR., 1974, GOLD PLACERS OF COLORADO: COLORADO SCHOOL OF MINES QUART., V. 69, NO. 4, P. 194-197.
CROSS, WHITMAN, AND OTHERS, 1899, DESCRIPTION OF THE LA PLATA QUADRANGLE: USGS FOLIO 60.
| Subject category | Comment text |
|---|---|
| Deposit | PLACER AU DERIVED FROM ERODED PORTIONS OF EXPOSED VEINS IN HEADWATERS OF RIVER AND ITS TRIBUTARIES. PLACERS IN AREA GENERALLY WERE OF LOW GRADE BECAUSE (1) MUCH PRIMARY AU IS TELLURIDE, RELATIVELY LIGHT, EASILY BROKEN DOWN INTO FINE PARTICLES, (2) CHEMICAL WEATHERING PRODUCES "MUSTARD" AU THAT CAN BE CARRIED GREATER DISTANCES, (3) ERRATIC CONCENTRATIONS IN SMALL POCKETS IN WIDE VALLEYS SCOURED BY GLACIATION. THIS PLACER DIFFERS FROM OTHERS IN DISTRICT IN THAT IT OCCURS IN GLACIAL OUTWASH GRAVELS IN PROMINENT BENCHES OR TERRACES ALONG LA PLATA RIVER AND PARROTT CREEK IN WIDER PORTIONS OF RIVER VALLEY BELOW MAYDAY AND EXTENDING TO HESPERUS. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-AUG-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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