The Kangik 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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Kangik River MRDS details
Site Name
Primary: Kangik 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
Alteration Type: L
Alteration Text: The Cretaceous volcanic assemblage is thermally metamorphosed to hornblende hornfels and albite-epidote hornfels facies where it is in contact with granitic rocks but elsewhere it is commonly propylitically altered (Patton and Csejtey, 1980).
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Comment (Workings): Workings / Exploration = None
Comment (Reference): Primary Reference = Patton and Csejtey, 1971 (PP 684-C)
Comment (Geology): Geologic Description = A small amount of native copper was found in float of a mafic volcanic hornfels 4 1/2 miles northeast of Vngyat Point (Patton and Cjestey, 1971, p. C15).??The hornfels is apparently in the east contact zone of the Sevuokuk pluton. The Sevuokuk pluton is an elongate and composite intrusion that makes up the western coastal headlands of St. Lawrence Island (Patton and Csejtey, 1980). It includes biotite hornblende quartz monzonite and biotite quartz monzonite phases (Csejtey, Patton, and Miller, 1971). The copper-bearing hornfels occurrence is apparently in the contact zone of a biotite hornblende quartz monzonite phase where it intrudes a Cretaceous volcanic assemblage of diverse lithologies and compositions. One K/Ar age determination for the Sevuokuk pluton gave an age of 108 +/- 3.2 Ma (Patton and Csejtey, 1980).
Comment (Commodity): Ore Material = Native copper
Comment (Deposit): Model Name = Copper-bearing replacements in hornfels.
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Mid-Cretaceous, the age of the Sevuokuk pluton (108 +/- 3.2 Ma; Patton and Csejtey, 1980)
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): 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): Csejtey, Bela, Jr., Patton, W.W., Jr., and Miller, T.P., 1971, Cretaceous plutonic rocks of St. Lawrence Island, Alaska, a preliminary report: U.S. Geological Survey Professional Paper 750-D, p. D68-D76.
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.
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.
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