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  3. Mineral Resource Data System (MRDS)

Upper Copper Lake Copper Occurrence

Occurrence in Alaska, United States with commodities Molybdenum, Copper
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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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

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)

Site location context

Political divisions (FIPS codes)

Lake and Peninsula(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Iliamna C-3(quadrangle 1:63,360 scale)

Iliamna NE(quadrangle 1:100,000 scale)

Iliamna C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lake Iliamna(hydrologic unit)

Kvichak-Port Heiden(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

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
ListMap

Economic information

Geologic structures

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

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

Bibliographic references

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

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.