The East Fork Chulitna 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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East Fork Chulitna River MRDS details
Site Name
Primary: East Fork Chulitna River
Commodity
Primary: Gold
Secondary: Tin
Location
State: Alaska
District: Valdez Creek
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: Placer Au-PGE
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Ore: Cassiterite
Comments
Comment (Reference): Primary Reference = (Balen, 1990 OFR 34-90)
Comment (Geology): Age = Quaternary.
Comment (Deposit): Model Name = Placer Au (Cox and Singer, 1986; model 39a)
Comment (Geology): Geologic Description = Placer samples taken from the East Fork Chulitna River, contain 6.7 ppm gold and 260 ppm tin (Balen, 1990: OFR 34-90). Tin granites are reported on the western side of the Chulitna Valley (for example, HE056), and similar granites are also mapped in the East Fork Chulitna drainage area (Wilson and others, 1998). These granites may be the source of both the tin (cassiterite?) and the placer gold.
Comment (Workings): Workings / Exploration = Surface only.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Wilson, F.H., Dover, J.H., Bradley, D.C., Weber, F.R., Bundtzen, T.K., and Haeussler, P.J., 1998, Geologic map of central (interior) Alaska: U.S. Geological Survey Open-File Report 98-133, 17 p., 2 sheetsm, scale 1:500,000.
Reference (Deposit): Kurtak, J.M., Southworth, D.D., Balen, M.D., and Clautice, K.H., 1992, Mineral investigations in the Valdez Creek mining district, south-central Alaska: U.S. Bureau of Mines Open-File Report 1-92, 659 p., 2 plates, scale 1:250,000.
Reference (Deposit): Balen, M.D., 1990, Geochemical sampling results from the Bureau of Mines Investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Open-File Report 34-90, 218 p., 2 plates, scale 1:250,000.
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