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  3. Mineral Resource Data System (MRDS)

Unnamed Thorium Prospects

Occurrence in Gunnison county in Colorado, United States with commodities Thorium, REE, Niobium (Columbium), Copper, Zinc, Lead
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10087971
MRDS ID D011402
Record type Site
Current site name Unnamed Thorium Prospects

Geographic coordinates

Geographic coordinates: -107.02506, 38.23278 (WGS84)
Elevation 2999
Relative position 21.8 MILES S 14 W FROM GUNNISON

Site location context

Political divisions (FIPS codes)

Gunnison(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rudolph Hill(quadrangle 1:24,000 scale)

Montrose(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Gunnison(hydrologic unit)

Gunnison(hydrologic accounting unit)

Gunnison(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CO)

Bureau of Land Management CO BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Colorado Gunnison

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 046N 1.5W 24 N2 OF N2 Colorado

Comments on the location information

  • ACROSS RIDGE TOP EAST OF ROAD BEAVER CREEK 4.9 MILES SE OF POWDERHORN AND 2.1 MILES SE OF IRON HILL. ELEV AND LAT-LONG GIVEN ARE FOR PROSPECT 200 FT SOUTH OF NORTH QUARTER-CORNER SEC. 24. ; INFO FROM LAND.ST :1976

Commodities

Commodity Importance
Thorium Primary
REE Critical Secondary
Niobium (Columbium) Critical Tertiary
Copper Tertiary
Zinc Critical Tertiary
Lead Tertiary

Comments on the commodity information

  • BASE METALS LISTED ABOVE ARE GENERAL OCCURRENCES REPORTED FOR CARBONATITES IN AREA; ALL MAY NOT NECESSARILY OCCUR AT THIS SITE.

Materials information

Materials Type of material
Monazite Ore
Thorite Ore
Apatite Gangue
Barite Gangue
Bastnaesite Gangue
Biotite Gangue
Calcite Gangue
Chalcopyrite Gangue
Fluorite Gangue
Galena Gangue
Parisite Gangue
Phlogopite Gangue
Pyrite Gangue
Pyrochlore Gangue
Siderite Gangue
Sphalerite Gangue

Alteration

  • (Local) Fenitization In Granite

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Carbonatite, Intrusive
    Rock unit name Carbonatite;Powderhorn Granite
    Rock description Carbonatite;Powderhorn Granite
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -107.02506, 38.23278
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Gunnison Uplift, San Juan Volcanic Field
Type of structure Local
Structure description Iron Hill Alkalic Complex, Cimarron Fault, Powderhorn Stock

Controls for ore emplacement

  • Ne-Trending Carbonatites Concordant To Foliation In Granite

Comments on the geologic information

  • OTHER MINERALS LISTED ABOVE ARE GENERAL OCCURRENCES REPORTED FOR CARBONATITES IN AREA; ALL MAY NOT NECESSARILY OCCUR AT THIS SITE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name White Earth (Powderhorn) District

Land status

Ownership category BLM Administrative Area

Comments on the workings information

  • FOUR SURFACE PROSPECT PITS

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit CARBONATITE DIKES IN THIS AREA ARE ONE OF FOUR ENVIRONMENTS OF KNOWN TH OCCURRENCE IN THE POWDERHORN-IRON HILL AREA AND ARE RELATED TO EMPLACEMENT OF LATE PRECAMBRIAN OR CAMBRIAN CARBONATITE STOCK AT IRON HILL. MOST DIKES ARE DISTRIBUTED RADIALLY ABOUT STOCK ALTHOUGH SOME SHOW NW-SE TRENDS PARALLEL TO LONG DIMENSION OF ALKALIC COMPLEX. TRENDS ALSO SUGGEST CONTROL BY PREEXISTING FRACTURES IN COMPLEX. ALONG SE MARGIN OF COMPLEX, POWDERHORN GRANITE HAS BEEN FENITIZED AND CARBONATITE DIKE SWARM TRENDS GENERALLY N 45 TO 60 E, SUBPARALLEL TO FOLIATION IN GRANITE AND SUGGESTING PREEXISTING, POSSIBLY CONCENTRIC FRACTURE PATTERN WITH RESPECT TO STOCK.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1984 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.