Mitchell and Mcpherson Prospect

Occurrence in Alaska, United States with commodities Gold, Lead

Geologic information

Identification information

Deposit ID 10001329
MRDS ID A012069
Record type Site
Current site name Mitchell and Mcpherson Prospect
Related records 10161115

Geographic coordinates

Geographic coordinates: -134.7287, 58.54781 (WGS84)
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • BEST LOCATION: USGS BULL 502, PLATE 2, LOC. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Gold Primary
Lead Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore

Analytical data

Result GRADES OVER 6 FT SAMPLE WIDTH RANGED 8-17 PPM
Result UPPER TUNNEL GRADES 1-4 PPM AU
Result USGS OFR 85-717, P. 143

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) -134.7287, 58.54781

Ore body information

  • Strike N 45 E
    Dip 90

Comments on the geologic information

  • COUNTRY ROCK IS BELT OF DIORITE GNEISS IN A SCHIST TERRANE

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1904

Mining district

District name Juneau/Eagle River

Land status

Ownership category National Forest

Comments on the workings information

  • EXPLORED BY 2 TUNNELS AND OPEN CUTS; 3 UNPATENTED LODE CLAIMS

Comments on development

  • ACTIVE 1904-1914

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012069

Bibliographic references

  • Deposit

    USGS BULL 502, P. 53

  • Deposit

    USGS BULL 1246, P. 159

  • Deposit

    USGS OFR 84-572, P. 167, NO. 61

  • Deposit

    USGS OFR 85-717, P. 143

  • Other Database

    BAG-OFR-85-717-130

General comments

Subject category Comment text
Deposit MINERALIZED SHEAR ZONE IN DIORITE GNEISS; BRECCIA ZONE 6 FT THICK TRENDS ACROSS FOLIATION IN GNEISS AND CARRYS QUARTZ WITH RARE PYRITE AND GALENA; AURIFEROUS
Deposit SEE ALSO: ST. LOUIS ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1985 Leonard, Kenneth R. (Elliott, R. L.) U.S. Geological Survey
Editor 14-APR-1994 Mosier, Dan U.S. Geological Survey