Stag Bay Iron-Copper Prospect

Occurrence in Alaska, United States with commodities Iron, Copper

Geologic information

Identification information

Deposit ID 10094077
MRDS ID A013243
Record type Site
Current site name Stag Bay Iron-Copper Prospect

Geographic coordinates

Geographic coordinates: -136.34927, 57.91249 (WGS84)
Elevation 518
Relative position 0.7 MI N OF MT. HILL
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-467, LOC. 7; USGS B 1058-E, PL. 12 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Iron Primary
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Magnetite Ore
Epidote Gangue
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -136.34927, 57.91249

Ore body information

  • Width 16.76M
    Length 45.72M

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Chichagof

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Surface
    Overall length 32M

Comments on the workings information

  • TWO TRENCHES ON STEEP SLOPE: LOWER TRENCH 70 FT. LONG EXPOSING 55 FT. OF ORE, UPPER TRENCH 150 FT. ABOVE, EXPOSING 35 FT. OF ORE.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013243

Bibliographic references

  • Deposit

    USGS MF-467, LOC. 7 (1972)

  • Deposit

    USGS B 963-A, P. 23-24 (1949)

  • Deposit

    USGS OF 78-450, P. 97 (1978)

  • Deposit

    USGS B 1058-E, PL. 12 (1959)

  • Other Database

    BAG-MF-467-7

General comments

Subject category Comment text
Deposit SHEARED AND ALTERED GABBRO OR DIORITE CONTAINS ESTIMATED 60% MAGNETITE, 20% EACH EPIDOTE AND QUARTZ, PYRITE, AND UP TO 2% CHALCOPYRITE. UP TO 55 FT. OF ORE EXPOSED BY 2 TRENCHES 150 FT. APART.
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1987 Leonard, Kenneth R. (Huber, Donald F.) U.S. Geological Survey