The Unnamed (in headwaters of Etchepuk River) is a gold 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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Unnamed (in headwaters of Etchepuk River) MRDS details
Site Name
Primary: Unnamed (in headwaters of Etchepuk River)
Commodity
Primary: Gold
Location
State: Alaska
District: Council
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 intrusive rocks are described as altered but the nature of alteration is not defined.
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Comment (Reference): Primary Reference = Miller and Grybeck, 1973
Comment (Workings): Workings / Exploration = No workings or exploration acitivities are known but regional stream sediment geochemistry and airborne radiometric surveys may have been completed in the area.
Comment (Deposit): Model Name = Felsic intrusive rocks are altered and contain anomalous levels of gold.
Comment (Geology): Age = Mid-Cretaceous ; felsic intrusive rocks in the area may be similar in age to the Kachauik pluton which has K/Ar date of 86.1 +/- 3 Ma (Miller and others, 1972).
Comment (Geology): Geologic Description = An altered quartz latite porphyry dike contains anomalous amounts of Au, Bi, and As; a grab sample of the dike contained 2,000 ppm As, 15 ppm Bi, and 0.35 ppm Au (Miller and Grybeck, 1973). Country rocks of the intrusive are impure Ordovician chlorite marble (Till and others, 1986). The quartz latite prophyry is probably mid-Cretaceous in age, the age of the composite Kachauik pluton to the southeast (Miller and others, 1972; Till and others, 1986). A K/Ar age for the Kachauik pluton is 86.1 +/- 3 Ma (Miller and others, 1972).
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Miller, T.P., and Grybeck, D.J., 1973, Geochemical survey of the eastern Solomon and southeastern Bendeleben quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 553, 115 p.
Reference (Deposit): Gamble, B.M., 1988, Non-placer mineral occurrences in the Solomon, Bendeleben, and southern part of the Kotzebue quadrangles, western Alaska: U.S. Geological Survey Map MF-1838-B, 13 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Till, A.B., Dumoulin, J.A., Gamble, B. ., Kaufman, D.S., and Carroll, P.I., 1986, Preliminary geologic map and fossil data, Soloman, Bendeleben, and southern Kotzebue quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 86-276, 10 p., 3 plates, scale 1:250,000.
Reference (Deposit): Miller, T.P., Grybeck, D.J., Elliott, R.L., and Hudson, T.L., 1972, Preliminary geologic map of the eastern Solomon and southeastern Bendeleben quadrangles, eastern Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 72-256, 11 p.
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