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El Pequito Mine

Past Producer in Coconino county in Arizona, United States with commodities Uranium, Copper
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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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10027314
MRDS ID M002830
Record type Site
Current site name El Pequito Mine

Geographic coordinates

Geographic coordinates: -111.63797, 36.86639 (WGS84)
Elevation 1055
Relative position 2 MILES WNW OF LEES FERRY

Site location context

Political divisions (FIPS codes)

Coconino(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Navajo Bridge(quadrangle 1:24,000 scale)

Glen Canyon Dam(quadrangle 1:100,000 scale)

Marble Canyon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Paria(hydrologic unit)

Upper Colorado-Dirty Devil(hydrologic accounting unit)

Upper Colorado-Dirty Devil(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Glen Canyon National Recreation Area(National Recreation Area)

National Recreation Area NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State County
United States Arizona Coconino

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 040N 007E 14 Arizona

Commodities

Commodity Importance
Uranium Primary
Copper Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Uraninite Ore

Alteration

  • (Local) A Bleached Zone Up To 3 Or 4 Feet Thick Occurs Beneath Host Rock

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Host Rock Is Referred To As The Shinarump Member
    Rock description Host Rock Is Referred To As The Shinarump Member
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -111.63797, 36.86639
ListMap

Economic information

Ore body information

  • General form MINERALIZED CHANNEL IS A SMALL SPOON-SHAPED OFFSHOOT FROM A MUCH DEEPER AND MORE PRONOUNCE CHANNEL

Controls for ore emplacement

  • Uranium And Copper Minerals Are Commonly Localized In The Lower Parts Of The Host Rock, Or On The Sides Of Channels

Comments on the geologic information

  • URANINITE WITH PYRITE AND CHALCOPYRITE OCCURS IN CALCITE VEINLETS AND OXIDIZED URANIUM AND COPPER MINERALS COAT PEBBLES AND SAND GRAINS AS WELL AS IMPREGNATING CARBONIZED WOOD.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Vermillion Cliffs District

Comments on the production information

  • SOME PRODUCTION REPORTED BUT RESOURCES LIMITED AND LOW GRADE.

Comments on the workings information

  • EXPLORATION WAS DONE BY OPENCUTS

Reference information

Bibliographic references

  • Deposit

    PHOENIX, DAVID A., 1963 , GEOLOGY OF THE LEES FERRY AREA, USGS BULL. 1137 , P. 58 - 60 .

  • Deposit

    PEIRCE, WESLEY H., 1970 , COAL, OIL, NATURAL GAS, HELIUM AND URANIUM IN ARIZONA: ABM BULL. 182 , P. 119 & 217 .

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1979 Bright, Daniel (Creasey, S.C.) U.S. Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative Arizona resources

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