The Upper Tuluksak 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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Upper Tuluksak River MRDS details
Site Name
Primary: Upper Tuluksak River
Commodity
Primary: Gold
Secondary: Platinum
Location
State: Alaska
District: Aniak
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Placer Au-PGE
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Alluvium
Role: Host
Age Type: Host Rock
Age Young: Holocene
Analytical Data
Not available
Materials
Ore: Gold
Comments
Comment (Workings): Workings / Exploration = Dredge tailings are present along at least 2.2 miles of the Tuluksak River in the Russian Mission quadrangle. The tailings are shown on the U.S. Geological Survey topographic map (1954 edition) of the area. Mining may have continued further upstream, inasmuch as the deposit is essentially continuous with the placer deposit on California Creek (RM034). Mining took place during the periods 1909-1940, 1946-1964, and in the 1980's.
Comment (Geology): Geologic Description = Placer gold dredging has taken place over at least 2.2 miles of upper Tuluksak River in the Russian Mission quadrangle. This placer deposit and dredge operation continued downstream into the Bethel quadrangle (BH014) for another 3 miles. The dredged area is as much as 1,500 feet wide. Mining on this river started as early as 1909 and continued, with a hiatus for WWII, until 1964 and later (Hoare and Cobb, 1977). Some platinum was produced along with the gold, and Joesting (1942) reported that asbestos and graphite were dredged from bedrock. A significant part of the bedrock in the drainage is hornfels in Jurassic volcanic rocks surrounding a mid-Cretaceous granitic pluton (Box and others, 1993).
Comment (Deposit): Model Name = Placer Au-PGE (Cox and Singer, 1986; model 39a)
Comment (Reference): Primary Reference = Hoare and Cobb, 1977
Comment (Geology): Age = Quaternary.
References
Reference (Deposit): Hoare, J M., and Cobb, E.H., 1972, Metallic mineral resources map of the Russian Mission quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-444, 1 sheet, scale 1:250,000.
Reference (Deposit): Box, S.E, Moll-Stalcup, E.J., Frost, T.P., and Murphy, J.M., 1993, Preliminary geologic map of the Bethel and southern Russian Mission quadrangles, southwestern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2226-A, 20 p., scale 1:250,000.
Reference (Deposit): Hoare, J M., and Cobb, E.H., 1972, Metallic mineral resources map of the Russian Mission quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-444, scale 1:250,000.
Reference (Deposit): Hoare, J.M., and Cobb, E.H., 1977, Mineral occurrences (other than mineral fuels and construction materials) in the Bethel, Goodnews, and Russian Mission quadrangles, Alaska: U.S. Geological Survey Open-File Report 77-156, 98 p.
Reference (Deposit): Maddren, A.G., 1915, Gold placers of the lower Kuskokwim with a note on copper in the Russian Mountains: U.S. Geological Survey Bulletin 622-H, p. 292-360.
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