| Deposit ID | 10014033 |
|---|---|
| MRDS ID | D010647 |
| Record type | Site |
| Current site name | Dexter Tunnel |
| Alternate or previous names | Claim: Dexter, Ms 77 |
| Geographic coordinates: | -106.59699, 37.42585 (WGS84) |
|---|---|
| Elevation | 3538 |
| Relative position | 0.35 MILES S 37 W FROM SUMMITVILLE |
Political divisions (FIPS codes)
Rio Grande(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Summitville(quadrangle 1:24,000 scale)
Antonito(quadrangle 1:100,000 scale)
Durango(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Alamosa-Trinchera(hydrologic unit)
Rio Grande Headwaters(hydrologic accounting unit)
Rio Grande Headwaters(hydrologic subregion)
Rio Grande(hydrologic region)
Federal lands
Rio Grande National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | Rio Grande |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| New Mexico | 037N | 004E | 30 | SE OF NW | Colorado |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Primary |
| Copper | Secondary |
| Model code | 85 |
|---|---|
| USGS model code | 22c |
| Deposit model name | Polymetallic veins |
| Mark3 model number | 46 |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite | ||||
| Rock unit name | Quartz Latite Of South Mountain;Summitville Andesite | ||||
| Rock description | Quartz Latite Of South Mountain;Summitville Andesite | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite |
| Rock unit name | Quartz Latite Of South Mountain;Summitville Andesite |
| Rock description | Quartz Latite Of South Mountain;Summitville Andesite |
| (1) | -106.59699, 37.42585 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | San Juan Volcanic Field |
| Type of structure | Local |
| Structure description | Platoro Caldera, Summitville Caldera, Summitville Fault, South Mountain Dome |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1873 |
| Discoverer | Josiah Mann, Arthur Burton, John A. Mcdonald |
| District name | Summit (Summitville) District |
|---|
| Ownership category | Private |
|---|
| Type of workings | Surface/Underground |
|---|---|
| Length | 402.34M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010647 |
PATTON, H.B., 1917, GEOLOGY AND ORE DEPOSITS OF THE PLATORO-SUMMITVILLE MINING DISTRICT, COLORADO: CGS BULL. 13.
LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.
BLM MINERAL SURVEY MS 77
| Subject category | Comment text |
|---|---|
| Deposit | MINE DEVELOPED ON DEXTER (ODIN) VEIN, ONLY SIGNIFICANT VEIN IS DISTRICT TRENDING EAST-WEST. AT SURFACE, BODIES OF VUGGY QUARTZ ROCK IN QUARTZ-ALUNITE ZONE APPEAR TO BE DISCONTINUOUS, BUT TREND IS WELL DEFINEDIN DEXTER AND FRENCH LEVELS. OTHER VEIN ZONE OF COMPACT QUARTZ AND VUGGY QUARTZ ROCK PROJECTS SOUTH FROM DEXTER VEIN AND IS CALLED QUEEN OR HIGHLAND MARY VEIN. NW PROJECTIONS FROM DEXTER VEIN REFERRED TO AS PITTSBURGH AND QUEEN VEINS. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-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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