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Pawnee Buttes N.E. Deposit

Occurrence in Weld county in Colorado, United States with commodities Uranium, Vanadium
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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. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Reserves and resources
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10013015
MRDS ID D009073
Record type Site
Current site name Pawnee Buttes N.E. Deposit
Alternate or previous names Pawnee Deposit
Related records 10159198

Geographic coordinates

Geographic coordinates: -104.04027, 40.63277 (WGS84)
Elevation 1494
Relative position 3.75 MILES N 74 W FROM BUCKINGHAM

Site location context

Political divisions (FIPS codes)

Weld(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Keota(quadrangle 1:24,000 scale)

Eaton(quadrangle 1:100,000 scale)

Greeley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Pawnee(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Arapaho and Roosevelt National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Weld

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 008N 060W 25,26,27,28 Colorado

Comments on the location information

  • LATITUDE, LONGITUDE GIVEN ARE FOR CENTER, SECTION 25 ; INFO FROM LAND.ST :1976

Commodities

Commodity Importance
Uranium Primary
Vanadium Critical Secondary

Materials information

Materials Type of material
Pyrite Gangue

Alteration

  • (Local) Alteration Present But Not Detectable In Field By Usual Color Changes

Analytical data

Result AVERAGE 0.07% U308, 0.14% EU308: ORE ZONE OUT OF EQUILIBRIUM

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -104.04027, 40.63277
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Cheyenne Basin

Ore body information

  • General form ROLL FRONT
    Thickness 3.51M
    Width 30.48M

Controls for ore emplacement

  • Deposits Along Interface Between Altered/Unaltered Sand. Alteration In Cuttings Difficult To Detect By Usual Color Changes So Exploration Was Guided By Radiometric Log Interpretation. Uranium Concentrated In Areas Of Rapid Sand Thinning Or At Constriction In Thickest Portion Of Channel Sands. Usually Where Sands Are 25 To 125 Ft Thick

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1971
Discoverer Joint Venture Of Getty Oil Company, Phelps Dodge Corporation, Trend Exploration Limited, During Initial Wide-Spaced Drilling Program

Mining district

District name Grover/Keota Area

Land status

Ownership category Private

Reserves and resources

  • Type In-situ
    Estimate year 1978
    Total resources 48000mt ore
    Commodity Subtype Grade units Group Importance Year
    Uranium U3O8 0.05 wt-pct Uranium Major 1978

Comments on the reserve resource information

  • READE, 1978

Comments on the workings information

  • DRILLING TO DELINEATE ORE BODY

Comments on development

  • DISCOVERED DURING INITIAL, WIDE-SPACED DRILLING PROGRAM.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ORIENTATION SUGGESTS SOUTHWARD GROUNWATER MOVEMENT DURING URANIUM DEPOSITION. THE SOLUTION FRONT IS LINEAR AND ALIGNED IN AN EAST-WEST DIRECTION;

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1982 Collins, Donna B. 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.