Unnamed Prospects

Occurrence in San Juan county in Colorado, United States with commodities Copper, Lead, Silver
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10094665
MRDS ID D010890
Record type Site
Current site name Unnamed Prospects

Geographic coordinates

Geographic coordinates: -107.71064, 37.71529 (WGS84)
Elevation 3444
Relative position 6.8 MILES S 21 W FROM SILVERTON

Site location context

Political divisions (FIPS codes)

San Juan(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Snowdon Peak(quadrangle 1:24,000 scale)

Silverton(quadrangle 1:100,000 scale)

Durango(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Animas(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)

Geographic areas

Country State County
United States Colorado San Juan

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 040N 008W 23 SE Colorado

Comments on the location information

  • (LAND STATUS AND ADMINISTRATIVE AREA LOCATIONS CALCULATED USING GIS OVERLAY ANALYSIS FOR SAN JUAN N. F.). NEAR HEAD OF UNNAMED TRIBUTARY OF LIME CREEK 1.25 MILES SOUTH OF U.S. ROUTE 550 1.7 MILES SW OF MOLAS PASS, AND 1.3 MILES NW OF SNOWDON PEAK (UNSURVEYED SECTION). ; INFO FROM LAND.ST :1977

Commodities

Commodity Importance
Copper Primary
Lead Primary
Silver Primary

Materials information

Materials Type of material
Barite Gangue
Calcite Gangue
Dolomite Gangue
Limonite Gangue
Malachite Gangue
Quartz Gangue

Alteration

  • (Local) Fe Oxides, Cu Carbonates

Analytical data

Result DUMP SAMPLE OF FE-STAINED LIMESTONE WITH CU CARBONATES FROM NE ADIT CONTAINED 2.45% CU, 1.10% PB, 0.3 OZ/TON AG. CHIP SAMPLES OF FE-STAINED QUARTZITE FROM CENTER ADIT CONTAINED 0.2 TO 0.3 OZ/TON AG. CHIP SAMPLE OF LIMESTONE WITH CU CARBONATES FROM SW PROSPECT PIT CONTAINED 0.06% CU AND 0.05% PB. VEINLETS ALSO SHOW UP TO 10.3% BARITE.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Ouray Limestone;Leadville Limestone
    Rock description Ouray Limestone;Leadville Limestone
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) -107.71064, 37.71529

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Uplift
Type of structure Local
Structure description Needle Mtns Uplift, Unnamed Fault

Controls for ore emplacement

  • Ne-Trending Fault Displacing Metamorphics Against Limestones

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Snowdon Peak Area

Land status

Ownership category National Forest
Area name San Juan N. F.

Comments on the workings information

  • ONE SURFACE PROSPECT PIT; TWO TUNNELS OF UNKNOWN EXTENT DRIVEN GENERALLY SE.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ON NW SIDE OF UPLIFT, WNW-TRENDING QUARTZITES AND SLATES OF PRECAMBRIAN UNCOMPAHGRE FM LIE IN FAULT CONTACT WITH DEVONIAN AND MISSISSIPPIAN LIMESTONES AND WITH PENNSYLVANIAN CLASTICS. PRINCIPAL FAULT TRENDS GENERALLY NE, DOWNDROPPED ON NW. BARITE AND CALCITE GANGUE AND METALS OCCUR IN VEINLETS IN OPEN SPACES WITHIN FAULT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1983 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.