The Upper Tazimina 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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Upper Tazimina MRDS details
Site Name
Primary: Upper Tazimina
Commodity
Primary: Copper
Secondary: Lead
Secondary: Silver
Secondary: Zinc
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
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Skarn Cu
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Unknown
Rocks
Name: Andesite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Magnetite
Gangue: Epidote
Gangue: Quartz
Comments
Comment (Exploration): Status = Inactive
Comment (Deposit): Other Comments = Mineralization very sparse. Site is in Lake Clark National Park and Preserve.
Comment (Geology): Geologic Description = Occurrence is a very small area of strong epidote - quartz - magnetite - chalcopyrite veining within 0.9 m of the contact of Tertiary andesite porphyry breccia with fine-grained metasedimentary rocks. Resource Associates of Alaska (1976) report two rock samples taken near the metasediment-volcanic contact yielded values as high as 11.2 ppm Ag, 1,100 ppm Cu, 180 ppm Pb, and 680 ppm Zn. One nearby stream sediment sample showed slight anomaly (109 ppm Cu). However, these results could not be reproduced by Nelson and others (1985).
Comment (Workings): Workings / Exploration = Resource Associates of Alaska (1976) report two rock samples taken near the metasediment-volcanic contact yielded values as high as 11.2 ppm Ag, 1,100 ppm Cu, 180 ppm Pb, and 680 ppm Zn. One nearby stream sediment sample showed slight anomaly (109 ppm Cu). However, these results could not be reproduced by Nelson and others (1985).
Comment (Production): Production Notes = No production
Comment (Reference): Primary Reference = Nelson and others, 1985
Comment (Deposit): Model Name = Cu skarn (Cox and Singer, 1986; model 18b)
Comment (Reserve-Resource): Reserves = No reserves
Comment (Geology): Age = Tertiary or younger, based on geologic relationships.
References
Reference (Deposit): Resource Associates of Alaska, Inc., 1976, Geology and geochemistry of certain land within the Lake Clark National Park: Contract report for U.S. Bureau of Mines, 109 p.
Reference (Deposit): Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska - Supplement to Open-File Report 76-485: U.S. Geological Survey Open-File Report 81-1343-A, 25 p.
Reference (Deposit): Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska - Supplement to Open-File Report 76-485: U.S. Geological Survey Open-File Report 81-1343-B, 20 p.
Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.
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