The Ikalooksik River 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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Ikalooksik River MRDS details
Site Name
Primary: Ikalooksik River
Commodity
Primary: Copper
Location
State: Alaska
District: Bering Sea
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
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Comment (Workings): Workings / Exploration = Of the 21 stream sediment samples along this drainage, 18 have 100 to 150 ppm copper, all have 300 to 1,000 ppm vanadium, all have 30 to 100 ppm Ni, and 20 contain 1,500 to 5,000 ppm Mn (Patton and Csejtey, 1972). Nineteen of these samples have chromium values between 100 and 300 ppm.
Comment (Exploration): Status = Inactive
Comment (Deposit): Model Name = Disseminated sufide minerals in gabbro.
Comment (Reference): Primary Reference = Patton and Csejtey, 1972
Comment (Geology): Age = Original, disseminated sulfide minerals in gabbro would be Triassic to Permian in age based on the results of two K/Ar age determinations on associated intrusive rocks (221 +/- 7 and 244 +/- 7 Ma; Patton and Csejtey, 1980).
Comment (Geology): Geologic Description = Stream sediments collected along the main drainage of the Ikalooksik River, over a distance of 8 miles, have low but anomalous levels of copper, vanadium, nickel, and manganese. Of the 21 stream sediment samples along this drainage, 18 have 100 to 150 ppm copper, all have 300 to 1,000 ppm vanadium, all have 30 to 100 ppm Ni, and 20 contain 1,500 to 5,000 ppm Mn (Patton and Csejtey, 1972). Nineteen of these samples have chromium values between 100 and 300 ppm. These widespread slightly elevated metal values probably reflect a general characteristic of the bedrock in the drainage area. ??The bedrock in this drainage is a Triassic to Permian age assemblage characterized by gabbro and diabase intrusions (Patton and Csejtey, 1980). Gabbro samples from this assemblage along the Okok River (see SL012) contain disseminated chalcopyrite and up to 700 ppm copper (Patton and Csejtey, 1971, p. C15). Samples of gabbro from along the Ikalooksik River are not available but the slightly elevated metal contents in stream sediments throughout this drainage probably reflect the presence of gabbro intrusions here.?
References
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Saint Lawrence quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-465, 1 sheet, scale 1:250,000.
Reference (Deposit): Cobb, E.H., 1980, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in fifteen quadrangles in southwestern and west-central Alaska: U.S. Geological Survey Open-File Report 80-909, 103 p.
Reference (Deposit): Patton, W.W., Jr., and Csejtey, Bela, Jr., 1980, Geologic map of St. Lawrence Island, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-1203, scale 1:250,000.
Reference (Deposit): Patton, W.W., Jr., and Csejtey, Bela, Jr., 1972, Analyses of stream sediment and rock samples from St. Lawrence Island, Alaska, 1966-1971: U.S. Geological Survey Open-File Report 72-293, 78 p.
Reference (Deposit): Patton, W.W., Jr., and Csejtey, Bela, Jr., 1971, Preliminary geologic investigations of western St. Lawrence Island, Alaska: U.S. Geological Survey Professional Paper 684-C, p. C1-C15.
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