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Mitchell Prospect

Occurrence in Alaska, United States with commodities 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. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10002674
MRDS ID A015115
Record type Site
Current site name Mitchell Prospect
Related records 10136171

Geographic coordinates

Geographic coordinates: -143.02355, 64.09195 (WGS84)
Location accuracy 1000(meters)
Relative position 30 MILES WEST OF CHICKEN

Site location context

Political divisions (FIPS codes)

Southeast Fairbanks(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Eagle A-5(quadrangle 1:63,360 scale)

Eagle SW(quadrangle 1:100,000 scale)

Eagle(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Doyon, Limited(ANCSA Region)

ANCSA Region NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-393, LOC. 10. AT EL. 4,200 FT. ON THE END OF THE RIDGE ON THE WEST SIDE OF COPPER CREEK, A TRIBUTARY TO MOSQUITO FORK OF FORTYMILE RIVER. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991). ; INFO FROM LAND.ST :49?

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Secondary

Materials information

Materials Type of material
Gold Ore
Malachite Ore
Calcite Gangue
Magnetite Gangue

Analytical data

Result CU: 1.93-19.61%, AG: .60-79.98 OZ./TON, AU: TRACE-.04 OZ./TON. SEE REF. 2, P. 86.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Birch Creek Schist
    Rock description Birch Creek Schist

Nearby scientific data

(1) -143.02355, 64.09195
ListMap

Economic information

Ore body information

  • Strike N 75 E
    Dip 55 S
    Width 1.52M

Comments on the geologic information

  • BODY OF SCHIST AT LEAST 2400 FT. LONG IN DIRECTION PARALLEL TO VEIN TREND.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1911

Mining district

District name Fortymile

Comments on development

  • PROSPECTED IN 1961 BY BULLDOZER TRENCHES AND SURFACE PITS.

Reference information

Bibliographic references

  • Deposit

    USGS MF-393 (A-5), LOC. 10.

  • Deposit

    STATE OF ALASKA DIV. OF MINES AND MINERALS REPT. FOR THE YEAR 1962, P. 85-88.

  • Other Database

    BAG-MF-393-10

General comments

Subject category Comment text
Deposit QUARTZ-BORNITE-CHALCOPYRITE VEIN 5 FT. WIDE IN SCHIST ROOF PENDANT IN A LARGE GRANITIC BODY. EARTHY MATERIAL CONSISTING LARGELY OF MALACHITE EXPOSED IN TRENCHES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1987 Powers, M.T. (Huber, D.F.) 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 Alaska resources

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