The Erickson is a copper 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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Erickson MRDS details
Site Name
Primary: Erickson
Secondary: Erickson and Madden
Commodity
Primary: Copper
Secondary: Silver
Location
State: Alaska
District: Nizina
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Basaltic Cu (BC name is Volcanic redbed Cu)
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Greenstone
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Triassic
Name: Greenstone
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic
Analytical Data
Not available
Materials
Ore: Tenorite
Ore: Malachite
Ore: Cuprite
Ore: Chalcocite
Ore: Copper
Comments
Comment (Workings): Workings / Exploration = Explored by about 100 m of underground workings in two tunnels and 3 levels. One sample assayed 70 ppm Ag, four samples ranged between 7 to 30 ppm Ag (MacKevett and Smith, 1968). Underground workings.
Comment (Production): Production Notes = Minor production in 1917.
Comment (Commodity): Ore Material = Copper (native)
Comment (Deposit): Model Name = Basaltic Cu
Comment (Geology): Geologic Description = Native Cu, tenorite, cuprite, and minor amounts of other Cu minerals in irregular masses, thin veins, and disseminated grains in upper parts of amygdaloidal lava flows and, to a lesser extent, as fillings in amygdules or associated with quartz-epidote veins in Triassic Nikolai Greenstone. Deposit may be restricted to one 6 to 8 ft lava bed containing numerous amygdules. Most of copper fine-grained; copper masses to 27 kg have been recorded.
Comment (Exploration): Status = Inactive
Comment (Reference): Primary Reference = Miller, 1946
Comment (Geology): Age = Cretaceous
References
Reference (Deposit): MacKevett, E.M., Jr., and Smith, J.G., 1968, Distribution of gold, copper, and some other metals in the McCarthy B-4 and B-5 quadrangles, Alaska: U.S. Geological Survey Circular 604, 25 p.
Reference (Deposit): Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.
Reference (Deposit): MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, scale 1:250,000.
Reference (Deposit): MacKevett, E.M., Jr., and Smith, J.G., 1972, Geologic map of the McCarthy B-4 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-943, scale 1:63,360.
Reference (Deposit): Miller, D.J., 1946, Copper deposits of the Nizina district, Alaska: U.S. Geological Survey Bulletin 947F, p. 93-120.
Reference (Deposit): MacKevett, E.M., Jr., 1970, Geology of the McCarthy B-4 quadrangle: U.S. Geological Survey Bulletin 1333, 31 p.
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