The Upper Copper Lake Copper Occurrence is a molybdenum mine located in Alaska.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
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Upper Copper Lake Copper Occurrence MRDS details
Site Name
Primary: Upper Copper Lake Copper Occurrence
Commodity
Primary: Molybdenum
Tertiary: Copper
Location
State: Alaska
District: Bristol Bay
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1967
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: Intrusive Cut By Dike And Shear Zone
Alterations
Alteration Type: L
Alteration Text: Pyritization
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Analytical Data: FROM STREAM SEDIMENT SAMPLES-CU: 200 PPM, MO: 20 PPM-USGS OFR 897, TABLE 2, LOC. 6 (1967)
Materials
Ore: Chalcopyrite
Ore: Molybdenite
Gangue: Pyrite
Comments
Comment (Deposit): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Comment (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.
Comment (Workings): NO WORKINGS, OCCURRENCE ONLY
Comment (Deposit): ANOLMALOUS STREAM SEDIMENT SAMPLE VALUES FOR CU, MO. SMALL, DISSEMINATED FLAKES OF MOLYBDENITE IN EXPOSURES. ; INFO.SRC : 1 PUB LIT
Comment (Commodity): EXPOSURES CONTAIN SMALL DISSEMINATED FLAKES OF MOLYBDENITE. ONLY THE STREAM SEDIMENT SAMPLES CONTAIN ANOMALOUS MO AND CU; BEDROCK SAMPLES CONTAIN NORMAL AMOUNTS.
Comment (Location): 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).
Comment (Development): GEOCHEMICAL ANALYSIS OF STREAM SEDIMENT AND BEDROCK SAMPLES, USGS OFR 897, (1967), P. 12-13
References
Reference (Other Database): BAG-MF-364-13
Reference (Deposit): USGS OFR 897, P. 12-13 (1967)
Reference (Deposit): USGS OFR 81-1343A, P. A7 (1981)
Reference (Deposit): USGS MF-364, LOCATION 12 (1972)
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