The Unnamed is a tungsten 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 MRDS details
Site Name
Primary: Unnamed
Commodity
Primary: Tungsten
Location
State: Alaska
District: Circle
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: W skarn
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Wolframite
Comments
Comment (Reference): Primary Reference = Johnson, 1910 in Brooks, 1910.
Comment (Workings): Workings / Exploration = A prospect hole was dug around 1908 in a placer deposit that uncovered the wolframite vein, but was caved in by 1909 (Johnson, 1910).
Comment (Geology): Geologic Description = This occurrence is an unconfirmed report of a wolframite-bearing vein in a prospect hole sunk when the high bench gravels were being prospected for gold. Wolframite has been found in placers below the mouth of Discovery Gulch (Johnson, 1910, p. 248). This wolframite-bearing vein is within the Lower Schist bedrock unit described by Wiltse and others (1995) as a medium to dark gray and medium greenish-gray, fine- to medium-grained, commonly slightly calcareous quartz-muscovite schist, with lesser amounts of quartzose porphyroblastic albite-chlorite schist and chlorite schist.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Menzie, W.D., Foster, H.L., Tripp, R.B., and Yeend, W.E., 1983, Mineral resource assessment of the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-170-B, 61 p., 1 sheet, 1:250,000.
Reference (Deposit): Brooks, A.H., 1910, Mineral resources of Alaska, report on progress of investigations in 1909: U.S. Geological Survey Bulletin 442, 426 p.
Reference (Deposit): Johnson, B.L., 1910, Occurrence of wolframite and cassiterite in the gold placers of Deadwood Creek, Birch Creek district: U.S. Geological Survey Bulletin 442, p. 246-250.
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