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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10014575
MRDS ID D011407
Record type Site
Current site name Unnamed Thorium Prospects

Geographic coordinates

Geographic coordinates: -107.09145, 38.24861 (WGS84)
Elevation 2765
Relative position 21.9 MILES S 24 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 002W 10 SW OF SW Colorado

Comments on the location information

  • ON TOP OF RIDGE NE OF SMITH GULCH 1.95 MILES SSE OF POWDERHORN AND 2.1 MILES WSW OF IRON HILL. ; 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

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Carbonatite, Intrusive
    Rock unit name Carbonatite;Fine-To Medium-Grained Granite
    Rock description Carbonatite;Fine-To Medium-Grained 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 > Mafic Intrusive Rock
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Metamorphic Rock > Amphibolite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock
    Rock unit name Dubois Greenstone--Felsite And Felsite Porphyry;Dubois Greenstone--Hornblende Schist And Amphibolite
    Rock description Dubois Greenstone--Felsite And Felsite Porphyry;Dubois Greenstone--Hornblende Schist And Amphibolite

Nearby scientific data

(1) -107.09145, 38.24861
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

  • East-West-Trending Carbonatite Cutting Across Metamorphic Foliation

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 WEST MARGIN OF COMPLEX, APOPHYSES OF FINE- TO MEDIUM-GRAINED GRANITE INTRUDE CONCORDANTLY INTO DUBOIS FELSITE MASS CONTAINING LENSES AND LAYERS OF SCHIST AND AMPHIBOLITE WHOSE FOLIATION TRENDS GENERALLY N 30 TO 40 E. CARBONATITE DIKE TRENDING N 88 E AND DIPPING 25 SE CUTS BOTH DUBOIS GREENSTONE UNITS AND LIES IN RADIAL ORIENTATION 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.