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Twin Ledge Prospect

Producer in Yavapai county in Arizona, United States with commodities Molybdenum, Copper, Silver, Gold
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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. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10027568
MRDS ID M003374
Record type Site
Current site name Twin Ledge Prospect
Related records 10137618

Geographic coordinates

Geographic coordinates: -112.46296, 34.34338 (WGS84)
Elevation 1554
Relative position 9.5 MILES S OF GROOM CREEK.

Site location context

Political divisions (FIPS codes)

Yavapai(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Battleship Butte(quadrangle 1:24,000 scale)

Bradshaw Mountains(quadrangle 1:100,000 scale)

Prescott(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Hassayampa(hydrologic unit)

Lower Gila-Agua Fria(hydrologic accounting unit)

Lower Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Prescott National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Arizona Yavapai

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 012N 002W 33 NW Arizona

Commodities

Commodity Importance
Molybdenum Primary
Copper Primary
Silver Secondary
Gold Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Molybdenite Ore
Quartz Gangue
Pyrite Unknown

Alteration

  • (Local) Minor

Analytical data

Result TWO CHANNEL SAMPLES: 0.28 - 0.18 % MOS2 , 0.25 - 0.20 % CU, 0.9 - 0.9 OZ. AG/TON, 0.020 , 0.20 OZ. AU/TON.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Crooks Canyon Granodiorite;
    Rock description Crooks Canyon Granodiorite;
    Stratigraphic age (youngest) Proterozoic
    Chronological age 1760
    Dating method U-Pb (zircon)
    Type of media Zircon
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Proterozoic
    Chronological age 1760
    Dating method U-Pb (zircon)
    Type of media Zircon

Nearby scientific data

(1) -112.46296, 34.34338
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Granodiorite And Gabbro-Diorite Rather Massive
Type of structure Local
Structure description Veins Trend N-S To Nne

Ore body information

  • Length 304.8M
    Width 0.61M
    Depth to top 9.14M

Controls for ore emplacement

  • Faulting, Shearing

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Turkey Creek District

Land status

Ownership category National Forest

Reference information

Bibliographic references

  • Deposit

    KIRKEMO, H., 1965, INVESTIGATIONS OF MOLYBDENUM IN THE CONTERMINOUS UNITED STATES, 1942 - 60: U.S.G.S. BULLETIN 1182 - E, P. 32.

  • Deposit

    R.U. KING, 1974, UNPUB. DATA.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit DEPOSIT IS QUARTZ VEIN WHICH CUTS PROTEROZOIC GRANODIORITE-DIORITE.
Deposit THIS RECORD CONTAINS DATA FROM DUPLICATE RECORD D000351 OF R.U. KING WHICH HAS BEEN DELETED FROM MAIN MRDS. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1979 Johnson, Kris H. (Creasey, S.C.) U.S. Geological Survey
Updater 01-FEB-1982 Dewitt, Ed H. Arizona Bureau of Geology and Mineral Technology

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.