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

Unnamed W Prospect

Occurrence in Jefferson county in Colorado, United States with commodity Tungsten
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10094625
MRDS ID D010147
Record type Site
Current site name Unnamed W Prospect

Geographic coordinates

Geographic coordinates: -105.28725, 39.77916 (WGS84)
Elevation 2103
Relative position 3.5 MILES N 67 W FROM GOLDEN

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ralston Buttes(quadrangle 1:24,000 scale)

Denver West(quadrangle 1:100,000 scale)

Denver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Clear(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Colorado Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 003S 071W 24 SE OF NW Colorado

Comments on the location information

  • AT JUNCTION OF CRAWFORD GULCH AND TUCKER GULCH ACROSS CREEK FROM ASCENSION MINE ; INFO FROM LAND.ST :(1975)

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Granitic Pegmatite
    Rock description Granitic Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Idaho Springs Formation---Hornblende Gneiss Unit
    Rock description Idaho Springs Formation---Hornblende Gneiss Unit

Nearby scientific data

(1) -105.28725, 39.77916
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range Uplift, Denver Basin
Type of structure Local
Structure description Hurricane Hill Fault System

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Ralston Buttes District

Land status

Ownership category Private

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit DEPOSIT CONSISTS OF SMALL IRREGULAR FRACTURE FILLINGS AND DISSEMINATED GRAINS IN HURRICANE HILL FAULT SYSTEM ON OR NEAR CONTACT BETWEEN HORNBLENDE GNEISS AND LAYERED CALC-SILICATE GNEISS. TWETO (1960) DESCRIBES AFFINITY OF W FOR CA-RICH ROCKS IN THIS AREA. SHERIDAN AND OTHERS PRESUME ORIGIN TO BE RELATED TO LARAMIDE MOVEMENT ON HURRICANE HILL FAULT BUT IS NOT CONCLUSIVE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1983 Schwochow, Stephen D. 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.