The Unnamed (near VABM Way) is a iron 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 (near VABM Way) MRDS details
Site Name
Primary: Unnamed (near VABM Way)
Commodity
Primary: Iron
Primary: Copper
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: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Massive sulfide, Cyprus
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Role: Host
Age Type: Host Rock
Age Young: Triassic
Age Old: Permian
Analytical Data
Not available
Materials
Ore: Azurite
Ore: Bornite
Ore: Chalcopyrite
Ore: Magnetite
Ore: Malachite
Ore: Pyrite
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Some of the sulfide minerals probably are syngenetic with their Upper Paleozoic Triassic mafic host rocks. The bornite may represent subsequent supergene enrichment.
Comment (Reference): Primary Reference = Clark and Cobb, 1972
Comment (Workings): Workings / Exploration = Surface workings and exploration only.
Comment (Geology): Geologic Description = This occurrence is hosted in Middle Triassic to Upper Pennsylvanian metasedimentary rocks, cut by numerous diabasic and gabbroic dikes and sills (Wilson and others, 1998). The deposit consists of copper sulfides disseminated in the mafic units, and of magnetite along fault zones separating limestone and argillite. The sulfide minerals are bornite, chalcopyrite, and pyrite. Malachite and azurite occur in cross-cutting carbonate veins. Some of the sulfide minerals probably are syngenetic with emplacement of their Upper Paleozoic or Triassic mafic hostrocks. The bornite may represent subsequent supergene enrichment.
Comment (Deposit): Model Name = Cyprus massive sulfide (Cox and Singer, 1986; model 24a)
Comment (Geology): Age = Host rock is Triassic - Permian.
References
Reference (Deposit): Moffit, F.H., 1914, Preliminary report on the Broad Pass region: U.S. Geological Survey Bulletin 592-H, p. 301-305.
Reference (Deposit): Clark, A.L., and Cobb, E.H., 1972, Metallic mineral resources map of the Healy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-394, 1 sheet, scale 1:250,000.
Reference (Deposit): Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.
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): Kaufman, M.A., 1964, Geology and mineral deposits of the Denali-Maclaren River area, Alaska: Alaska Division of Mines and Minerals, Geologic Report 4, 15 p., 1 sheet, scale 1:105,000.
Reference (Deposit): Moffit, F.H., 1915, Broad Pass region, Alaska: U.S. Geological Survey Bulletin 608, 80 p.
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