The Unnamed (west of Tsusena Creek) is a silver, tin, and 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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Unnamed (west of Tsusena Creek) MRDS details
Site Name
Primary: Unnamed (west of Tsusena Creek)
Commodity
Primary: Silver
Primary: Tin
Primary: Copper
Secondary: Zinc
Secondary: Lead
Secondary: Tungsten
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: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Sn veins
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Cassiterite
Ore: Wolframite
Ore: Sphalerite
Ore: Galena
Ore: Chalcopyrite
Gangue: Quartz
Comments
Comment (Exploration): Status = Probably inactive
Comment (Geology): Age = Early Tertiary.
Comment (Reference): Primary Reference = Balen and others, 1991
Comment (Workings): Workings / Exploration = The deposit was explored in 1980-81 by detailed geological mapping and geophysical exploration, but the claims later were allowed to lapse (Balen, 1991).
Comment (Deposit): Model Name = Sn veins (Cox and Singer, 1986; 15b)
Comment (Geology): Geologic Description = The country rocks in the area of this prospect are Upper Triassic calcareous shale, argillite, and siltstone cut by numerous dikes, sills, and plugs of altered diabase and gabbro. These rocks are overlain by Oligocene to Paleocene volcanic flows, and pyroclastic rocks, and intruded by diverse, Tertiary(?) hypabyssal plutons (Wilson and others, 1998). The deposit consists of tin- and silver-bearing quartz veins and a mineralized shear-zone. The ore minerals are cassiterite, chalcopyrite, galena, sphalerite, and wolframite. Samples of the deposit contained as much as 26.5 ounces of silver per ton, 0.55% tin, 1.2% lead, 5.4% zinc, and 0.66% copper (Balen, 1991).
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): Balen, M.D., and others, 1991, Executive summary of the Bureau of Mines investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Special Publication, 43 p.
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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