1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

unnamed prospect

Past Producer in Costilla county in Colorado, United States with commodities Gold, Copper, Silver, Zinc
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Alteration
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Economic information about the deposit and operations
  12. Mining district
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10311028
Record type Site
Current site name unnamed prospect

Geographic coordinates

Geographic coordinates: -105.32639, 37.23225 (WGS84)
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Costilla(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Taylor Ranch(quadrangle 1:24,000 scale)

Alamosa(quadrangle 1:100,000 scale)

Trinidad(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)

Geographic areas

Country State County
United States Colorado Costilla

Comments on the location information

  • Small adit and mine dump is located south of the large San Luis Mine and south of Rito Seco, a perennial stream. Lower western foothills of the Sangre de Cristo Mountains.

Commodities

Commodity Importance
Gold Primary
Copper Primary
Silver Secondary
Zinc Critical Tertiary

Comments on the commodity information

  • One sample from the small mine dump yielded 4.2 percent copper, 460 ppb gold, 74 ppm silver, and 170 ppm zinc (Kirkham and others, 2003).

Alteration

  • (Local) silicification

Mineral occurrence model information

Model code 281
USGS model code 37b
Deposit model name Gold on flat faults
Model code 82
USGS model code 22
Deposit model name Epithermal veins

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Gneiss > Felsic Gneiss > Granitic Gneiss
    Rock unit name leucocratic gneiss
    Stratigraphic age (youngest) Paleoproterozoic

Nearby scientific data

(1) -105.32639, 37.23225
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description low-angle fault

Comments on the geologic information

  • The Sangre de Cristo fault is located about a mile to the west of this prospect.

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Significant No

Mining district

District name El Plomo district

Comments on the production information

  • Small adit. Production details not known.

Comments on the reserve resource information

  • One sample (Kirkham and others, 2003) yielded 4.2 percent copper, 460 ppb gold, 74 ppm silver, and 170 ppm zinc.

Reference information

Bibliographic references

  • Deposit

    Benson, R.G., 1997, Detachment fault-related mineralization in a rift setting at the San Luis gold deposit and Sangre de Cristo Mountains, Alamosa, Costilla, and Saguache Counties, Colorado: Golden, Colorado School of Mines, Ph.D. dissertation, 226 p.

  • Geology

    Benson, R.G., 1997, Detachment fault-related mineralization in a rift setting at the San Luis gold deposit and Sangre de Cristo Mountains, Alamosa, Costilla, and Saguache Counties, Colorado: Golden, Colorado School of Mines, Ph.D. dissertation, 226 p.

  • Deposit

    Kirkham, R.M., Shaver, K.C., Lindsay, N.R., and Wallace, A.R., 2003, Geologic map of the Taylor Ranch quadrangle, Costilla County, Colorado: Colorado Geological Survey Open-File Report 03-15, scale 1:24,000, 30 p..

  • Geology

    Kirkham, R.M., Shaver, K.C., Lindsay, N.R., and Wallace, A.R., 2003, Geologic map of the Taylor Ranch quadrangle, Costilla County, Colorado: Colorado Geological Survey Open-File Report 03-15, scale 1:24,000, 30 p.

Reporter information

Type Date Name Affiliation Comment
Reporter 10-MAY-05 Keller, John W. Colorado Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative Colorado resources

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