Upper Copper Lake Copper Occurrence

Occurrence in Alaska, United States with commodities Molybdenum, Copper

Geologic information

Identification information

Deposit ID 10002150
MRDS ID A013043
Record type Site
Current site name Upper Copper Lake Copper Occurrence

Geographic coordinates

Geographic coordinates: -154.10455, 59.58609 (WGS84)
Location accuracy 500(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-364 LOCATION 13 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Molybdenum Primary
Copper Tertiary

Comments on the commodity information

  • EXPOSURES CONTAIN SMALL DISSEMINATED FLAKES OF MOLYBDENITE. ONLY THE STREAM SEDIMENT SAMPLES CONTAIN ANOMALOUS MO AND CU; BEDROCK SAMPLES CONTAIN NORMAL AMOUNTS.

Materials information

Materials Type of material
Chalcopyrite Ore
Molybdenite Ore
Pyrite Gangue

Alteration

  • (Local) Pyritization

Analytical data

Result FROM STREAM SEDIMENT SAMPLES-CU: 200 PPM, MO: 20 PPM-USGS OFR 897, TABLE 2, LOC. 6 (1967)

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -154.10455, 59.58609

Geologic structures

Type of structure Local
Structure description Intrusive Cut By Dike And Shear Zone

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1967
Discoverer Bruce L. Reed

Mining district

District name Bristol Bay

Comments on the workings information

  • NO WORKINGS, OCCURRENCE ONLY

Comments on development

  • GEOCHEMICAL ANALYSIS OF STREAM SEDIMENT AND BEDROCK SAMPLES, USGS OFR 897, (1967), P. 12-13

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013043

Bibliographic references

  • Deposit

    USGS MF-364, LOCATION 12 (1972)

  • Deposit

    USGS OFR 81-1343A, P. A7 (1981)

  • Deposit

    USGS OFR 897, P. 12-13 (1967)

  • Other Database

    BAG-MF-364-13

General comments

Subject category Comment text
Deposit STREAM CUTS THROUGH A 400 FT EXPOSURE OF HIGHLY PYRITIZED AND ALTERED LIGHT GRAY INTRUSIVE, WHICH CONTAINS SMALL, DISSEMINATED FLAKES OF MOLYBDENITE. INTRUSIVE IS CUT BY A MAFIC DIKE AND A SHEAR ZONE.
Deposit ANOLMALOUS STREAM SEDIMENT SAMPLE VALUES FOR CU, MO. SMALL, DISSEMINATED FLAKES OF MOLYBDENITE IN EXPOSURES. ; INFO.SRC : 1 PUB LIT
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-FEB-87 Leonard, Kenneth R. (Huber, Donald F.) U.S. Geological Survey