| Deposit ID | 10014692 |
|---|---|
| MRDS ID | D011577 |
| Record type | Site |
| Current site name | Unnamed Mine |
| Geographic coordinates: | -107.50814, 38.11306 (WGS84) |
|---|---|
| Elevation | 3475 |
| Relative position | 12.0 MILES N 62 W FROM LAKE CITY |
Political divisions (FIPS codes)
Hinsdale(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Wetterhorn Peak(quadrangle 1:24,000 scale)
Montrose(quadrangle 1:100,000 scale)
Montrose(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
Grand Mesa, Uncompahgre and Gunnison National Forests(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
Uncompahgre Wilderness(Wilderness)
Wilderness FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | Hinsdale |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| New Mexico | 045N | 006W | 34 | N2 | Colorado |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Tertiary |
| Materials | Type of material |
|---|---|
| Limonite | Gangue |
| Result | SAMPLES FROM GOUGE ZONE, VEIN, AND DUMP CONTAINED TRACE GOLD AND 0.1 OZ/TON AG |
|---|
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Monzonite | ||||
| Rock unit name | Early Intermediate-Composition Lavas And Related Rocks--Intrusive Rocks (Monzonite And Monzonite Porphyry);Early Intermediate-Composition Lavas And Related Rocks--Intrusive Rocks (Andesite And Rhyodacite Porphyries);Early Intermediate-Composition Lavas And Related Rocks--Cone Breccias | ||||
| Rock description | Early Intermediate-Composition Lavas And Related Rocks--Intrusive Rocks (Monzonite And Monzonite Porphyry);Early Intermediate-Composition Lavas And Related Rocks--Intrusive Rocks (Andesite And Rhyodacite Porphyries);Early Intermediate-Composition Lavas A | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyodacite |
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Monzonite |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyodacite |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| (1) | -107.50814, 38.11306 |
|---|
| 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, Cimarron Volcano |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Cimarron District |
|---|
| Ownership category | National Forest |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D011577 |
LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.
STEVEN, T.A., AND OTHERS, 1977, MINERAL RESOURCES OF STUDY AREAS CONTIGUOUS TO THE UNCOMPAHGRE PRIMITIVE AREA, SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS BULL. 1391-E, P. 86, PLS. 1, 3.
| Subject category | Comment text |
|---|---|
| Deposit | DEPOSIT IS ASSOCIATED WITH CIMARRON VOLCANO, LYING NORTH OF AND PREDATING FORMATION OF SAN JUAN-UNCOMPAHGRE AND LAKE CITY CALDERAS. WIDESPREAD SEQUENCE OF INTERMEDIATE-COMPOSITION (ANDESITE, RHYODACITE) CONE BRECCIAS INTERBEDDED WITH PORPHYRITIC ANDESITE, RHYODACITE, AND QUARTZ LATITE FLOWS AND FLOW BRECCIAS IS CUT BY INTRUSIVE ROCKS OF CORE OF CIMARRON VOLCANO. MINE LIES NEAR PROMINENT EAST-WEST-TRENDING DIKE RADIATING FROM INTRUSIVE CENTER. |
| 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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