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: Silver
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
Discovery Method: Geophysical Anomaly
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: Cut By Mafic Dike
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: 300 PPM, MO: 20 PPM, AG: 1 PPM-USGS OFR 897, TABLE 2, LOC. 10
Materials
Ore: Molybdenite
Gangue: Pyrite
Comments
Comment (Workings): NONE
Comment (Location): USGS MF-364, LOCATION 12 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Commodity): VALUES ARE LOW FROM BEDROCK SAMPLES, BUT HIGHER FOR STREAM SEDIMENT SAMPLES
Comment (Development): GEOCHEMICAL ANALYSIS OF STREAM SEDIMENT AND BEDROCK SAMPLES IN 1967, USGS OFR 897 P. 12-13
Comment (Deposit): OCCURRENCE IN STREAM SEDIMENTS. STREAM CUTS ACROSS HIGHLY PYRITIZED GRANITIC INTRUSIVE, WHICH CONTAINS SMALL, DISSEMINATED FLAKES OF MOLYBDENITE
Comment (Geology): ALTERED INTRUSIVE CUT BY MAFIC DIKE
Comment (Deposit): STREAM SEDIMENT SAMPLES HAVE HIGHER THAN NORMAL VALUES FOR CU, MO, AND AG. SMALL, DISSEMINATED FLAKES OF MOLYBDENITE AND CHALCOPYRITE FOUND IN EXPOSURES. ; INFO.SRC : 1 PUB LIT
Comment (Deposit): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
References
Reference (Deposit): USGS OFR 81-1343A, P. A7 (1981)
Reference (Deposit): USGS MF-364, LOCATION 12 (1972)
Reference (Other Database): BAG-MF-364-12
Reference (Deposit): USGS OFR 897, P. 12-13 (1967)
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