| Deposit ID | 10014183 |
|---|---|
| MRDS ID | D010846 |
| Record type | Site |
| Current site name | Peerless Mine |
| Alternate or previous names | Patented Claim: Peerless, Ms 9812 |
| Related records | 10191106 |
| Geographic coordinates: | -108.10398, 37.43445 (WGS84) |
|---|---|
| Elevation | 3231 |
| Relative position | 16.3 MILES N 50 W FROM DURANGO |
Political divisions (FIPS codes)
Montezuma(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
La Plata(quadrangle 1:24,000 scale)
Cortez(quadrangle 1:100,000 scale)
Cortez(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Mancos(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)
| Country | State | County |
|---|---|---|
| United States | Colorado | Montezuma |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| New Mexico | 037N | 011W | 30 | SE | Colorado |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Materials | Type of material |
|---|---|
| Chlorite | Gangue |
| Model code | 72 |
|---|---|
| USGS model code | 19a |
| Deposit model name | Polymetallic replacement |
| Mark3 model number | 47 |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||||
| Rock unit name | Porphyritic Rocks--Diorite-Monzonite Porphyry | ||||||
| Rock description | Porphyritic Rocks--Diorite-Monzonite Porphyry | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Rock unit name | Dolores Formation;Entrada Sandstone |
| Rock description | Dolores Formation;Entrada Sandstone |
| (1) | -108.10398, 37.43445 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | San Juan Uplift, Four Corners Platform |
| Type of structure | Local |
| Structure description | La Plata Dome |
| General form | LENTICULAR |
|---|---|
| Thickness | 1.52M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1890 |
| Discoverer | George A. Jackson(?) |
| District name | California (La Plata) District |
|---|
| Ownership category | National Forest |
|---|---|
| Area name | San Juan N. F. |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010846 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0080830090 |
ECKEL, E.B., AND OTHERS, 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 68-69, 159-160.
BLM MINERAL SURVEY MS 9812
| Subject category | Comment text |
|---|---|
| Deposit | ALTHOUGH DEPOSIT NOT DIRECTLY OBSERVED, IT IS THOUGHT TO BE REPLACEMENT OF A DISCONTINUOUS LIMESTONE LENS NEAR INTERSECTION WITH NORTH-SOUTH- TO NW-SE-TRENDING 20-FT DIORITE-MONZONITE PORPHYRY DIKE. BEDS STRIKE NE, DIP 21 NW. DEPOSIT IS UNIQUE IN DISTRICT IN THAT ORE OCCURS IN LIMESTONE AT CONTACT BETWEEN DOLORES FM AND ENTRADA SANDSTONE. |
| 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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