The Alaska Chief is a lead 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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Alaska Chief MRDS details
Site Name
Primary: Alaska Chief
Commodity
Primary: Lead
Location
State: Alaska
District: Port Clarence
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
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Oxdized; iron oxides/hydroxides present.
Rocks
Name: Mafic Intrusive Rock
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Ordovician
Name: Mafic Intrusive Rock
Role: Associated
Age Type: Host Rock
Age Young: Late Ordovician
Name: Mafic Intrusive Rock
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Galena
Comments
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Assumed to be related to the development of tin systems in the Lost River area and therefore Late Cretaceous, the age of the tin-mineralizing granites there (Hudson and Arth, 1983).
Comment (Workings): Workings / Exploration = A 35-foot shaft and two exploratory adits were completed early in the century (Knopf, 1908, p. 58-59). One 143-foot long adit intersected 7 feet of low grade galena mineralization 50 feet below the bottom of the shaft. The second adit was 600 feet long and appears to have been driven along a fault zone in limestone without success.
Comment (Reference): Primary Reference = Knopf, 1908 (USGS B 358)
Comment (Deposit): Model Name = Sulfide vein or replacement in limestone. Model not clear; possibly a polymetallic replacement (Cox and Singer, 1986, model 19a)
Comment (Geology): Geologic Description = Gossan with galena remnants in Ordovician limestone; unoxidized character and controls on mineralization are not known.
References
Reference (Deposit): Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Teller quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-587, 130 p.
Reference (Deposit): Hudson, T.L., and Arth, J. G., 1983, Tin-granites of Seward Peninsula, Alaska: Geological Society of America Bulletin, v. 94, p. 768-790.
Reference (Deposit): Cobb, E.H., and Sainsbury, C.L., 1972, Metallic mineral resource map of the Teller quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-426, 1 sheet, scale 1:250,000.
Reference (Deposit): Knopf, Adolph, 1908, Geology of the Seward Peninsula tin deposits, Alaska: U.S. Geological Survey Bulletin 358, 71 p.
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