The Unnamed (near Mount Seltat) is a silver, zinc, lead, copper, and 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
Elevation:
Commodity: Silver, Zinc, Lead, Copper, Tungsten
Lat, Long: 59.6, -136.33000
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Unnamed (near Mount Seltat) MRDS details
Site Name
Primary: Unnamed (near Mount Seltat)
Commodity
Primary: Silver
Primary: Zinc
Primary: Lead
Primary: Copper
Primary: Tungsten
Secondary: Gold
Location
State: Alaska
District: Juneau (Skagway subdistrict)
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: Skarn Cu
Model Name: Skarn Zn-Pb
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Skarn.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Sphalerite
Ore: Pyrrhotite
Ore: Magnetite
Ore: Galena
Ore: Chalcopyrite
Comments
Comment (Geology): Age = Probably Cretaceous or Tertiary based on the age of intrusive rocks mapped to the east by Gilbert and others (1990).
Comment (Deposit): Model Name = Very little information. Probably a skarn (Cox and Singer, 1986; model 18b or 18c).
Comment (Geology): Geologic Description = Ore minerals are found in talus piles along the north and south sides of a rugged ridge that extends to the east from Mount Seltat. The mineralized talus is probably derived from brown-black manganese-stained bands that crop out between elevations of 4,000 feet and 6,000 feet on the ridge. Gilbert and others (1991) and Still and others (1991) report that float and rubblecrop samples of skarn or massive sulfides contained up to 0.137 ppm gold, 173.1 ppm silver, 4.13% zinc, 8,400 ppm copper, 2.6% lead, and 1,285 ppm tungsten. Cretaceous to Tertiary intrusive rocks mapped to the east by Gilbert and others (1990) suggest a similar age for this mineralization and alteration.
Comment (Reference): Primary Reference = Still and others, 1991
Comment (Exploration): Status = Probably inactive
References
Reference (Deposit): Gilbert, W.G., Clough, A.H., Burns, L.E., Kline, J.T., Redman, E.C., and Fogels, E.J., 1990, Reconnaissance geology and geochemistry of the northeast Skagway quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 90-5, 2 sheets, scale 1:125,000.
Reference (Deposit): Still, J.C., Hoekzema, R.B., Bundtzen, T.K., Gilbert, W.G., Wier, K.R., Burns, L.E., and Fechner, S.A., 1991, Economic geology of Haines-Klukwan-Porcupine area, southeastern Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 91-4, 156 p., 5 sheets, scale 1:63,360.
Reference (Deposit): Still, J.C., 1991, Bureau of Mines mineral investigations in the Juneau mining district, Alaska, 1984 - 1988, v. 2, Detailed mine, prospect, and mineral occurrence descriptions, section A, Haines-Klukwan-Porcupine subarea: U.S. Bureau of Mines of Mines Special Publication, 214 p.
Reference (Deposit): Gilbert, W.G., Still, J.C., Burns, L.E., Wier, K.R., and Redman, E.C., 1991, Geochemistry of Haines-Klukwan-Porcupine area, southeastern Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 91-5, 1 sheet, scale 1:63,360, 75 p.
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