Little Bay Copper-Silver-Gold-Nickel Prospect

Occurrence in Alaska, United States with commodities Gold, Silver, Copper, Nickel

Geologic information

Identification information

Deposit ID 10094079
MRDS ID A013255
Record type Site
Current site name Little Bay Copper-Silver-Gold-Nickel Prospect
Related records 10185631, 10136752

Geographic coordinates

Geographic coordinates: -136.29371, 57.78193 (WGS84)
Location accuracy 500(meters)
Relative position NEAR HEAD OF LITTLE BAY, 1.3 MI. SW OF MT. DOUGLAS.
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-467, LOC. 17 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
Silver Primary
Copper Primary
Nickel Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Pyrrhotite Ore
Quartz Gangue

Analytical data

Result ASSAYS OF SPECIMENS SHOW AU, AG, CU, AND TRACE OF NI IN ONE SPECIMEN.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -136.29371, 57.78193

Comments on the geologic information

  • GEOLOGIC MAPS USGS B 1058-E, PLATE 12 AND USGS MF-1476-B SHOW AREA UNDERLAIN BY TERT (?) OR CRET-JUR GABBRO.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1916

Mining district

District name Chichagof

Land status

Ownership category National Forest

Comments on the workings information

  • A FEW SHOTS INTO OUTCROP.

Comments on development

  • 4 CLAIMS LOCATED IN 1916. ONLY DEVELOPMENT WAS A FEW SHOTS INTO OUTCROP. NO PRODUCTION.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013255

Bibliographic references

  • Deposit

    USGS MF-467, LOC. 17 (1972)

  • Deposit

    USGS B 692, P. 123 (1919)

  • Deposit

    USGS OF 78-450, P. 73 (1978)

  • Deposit

    USGS B 1058-E, PLATE 12 (FOR REGIONAL GEOLOGY) (1959)

  • Other Database

    BAG-MF-467-17

General comments

Subject category Comment text
Deposit CHALCOPYRITE, PYRRHOTITE FOUND IN VERY FINE GRAINED QUARTZITIC ROCK. ASSAYS SHOW GOLD, SILVER, COPPER, AND TRACE OF NICKEL.
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-87 Leonard, Kenneth R. (Huber, Donald F.) U.S. Geological Survey