The Unnamed (southwest head of Wood 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 (southwest head of Wood River) MRDS details
Site Name
Primary: Unnamed (southwest head of Wood River)
Commodity
Primary: Gold
Secondary: Copper
Location
State: Alaska
District: Bonnifield
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 hydrothermal alteration is not described.
Rocks
Role: Host
Age Type: Host Rock
Age Young: Triassic
Analytical Data
Not available
Materials
Ore: Malachite
Ore: Gold
Comments
Comment (Geology): Age = The gabbroic hostrocks are undated, but may be Triassic.
Comment (Geology): Age = Host rock is Triassic.
Comment (Geology): Geologic Description = The country rocks in the area of this occurrence are the Devonian Yanert Fork sequence, an intensely deformed, thick, marine sequence dominantly of metasedimentary and metavolcanic rocks. The bulk of sequence is dark-gray to black carbonaceous shale with interbedded lithic sandstone and siltstone (Wilson and others, 1998). The occurrence is in hydrothermally altered gabbroic sills and dikes that cut the metasedimentary rocks. Samples of the altered zones show elevated gold and copper values. One sample contained 0.5 ppm gold (Sherwood and others, 1976).
Comment (Reference): Primary Reference = Sherwood and others, 1976
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): Sherwood, K.W., Craddock, Campbell, and Smith, T.E., 1976, Mineral occurrences in the upper Wood River, Edgar Creek, and West Fork Glacier areas, central Alaska Range: Alaska Division of Geological "&" Geophysical Surveys Special Report 14, 13 p.
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