The Kijik Lake 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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Kijik Lake MRDS details
Site Name
Primary: Kijik Lake
Secondary: Thompson
Commodity
Primary: Copper
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: Porphyry Cu
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Biotite, chloritic, and strong silicic alteration of the dacite.
Rocks
Role: Host
Age Type: Host Rock
Age in Years: 62.700000+-
Dating Method: K-Ar
Age Young: Paleocene
Role: Host
Age Type: Host Rock
Age in Years: 59.450000+-3.250000
Dating Method: K-Ar
Age Young: Paleocene
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Pyrite
Comments
Comment (Geology): Age = Chron age is for Host Rock.
Comment (Exploration): Status = Inactive
Comment (Workings): Workings / Exploration = Analysis of rock sample yielded 5.8 ppm Ag, 180 ppm Cu, and 275 ppm Zn.
Comment (Geology): Age = Tertiary or younger; potassium-argon ages for the volcanic rocks range from 56.2 to 62.7 m.y. (Eakins and others, 1978).
Comment (Reserve-Resource): Reserves = No reserves
Comment (Production): Production Notes = No production
Comment (Reference): Primary Reference = Nelson and others, 1985
Comment (Deposit): Other Comments = Overall, anomaly is weak. This may also be locality 2 of Mackevett and Holloway (1977) which corresponds with the Thompson prospects, 2 and 3, of Cobb (1972). Site is in Lake Clark National Park and Preserve.
Comment (Deposit): Model Name = Porphyry Cu ? (Cox and Singer, 1986; model 17 ?)
Comment (Geology): Geologic Description = The anomaly occurs in a structural zone where biotitic, chloritic, and strong silicic alterated dacite porphyry and breccia have been mineralized by 1 percent to 3 percent pyrite and traces of chalcopyrite (?) (Nelson and others, 1983; unit Tv). Mineralization spreads out along a NW-SE fault; possible breccia pipe or intrusive plug localized by the NW-SE fault. Analysis of rock sample yielded 5.8 ppm Ag, 180 ppm Cu, and 275 ppm Zn. Potassium-argon ages for this unit (Tv) range from 56.2 to 62.7 m.y. indicating a Tertiary age for these rocks (Eakins and others, 1978).
References
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.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral map of the Lake Clark quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-378, 1 sheet, scale 1:250,000.
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): 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.
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