The Unnamed (south of Windy Creek) is a 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 (south of Windy Creek) MRDS details
Site Name
Primary: Unnamed (south of Windy Creek)
Commodity
Primary: Copper
Secondary: Silver
Location
State: Alaska
District: Bonnifield
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
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Weathering of skarn to produce secondary iron and copper minerals.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Malachite
Gangue: Wollastonite
Gangue: Diopside
Gangue: Calcite
Comments
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Probably Late Cretaceous or younger.
Comment (Reference): Primary Reference = Hickman and Craddock, 1976
Comment (Workings): Workings / Exploration = Surface sampling only. Samples contain 1,900 ppm copper and 0.6 ppm silver (Hickman and Craddock, 1976).
Comment (Deposit): Model Name = Cu skarn (Cox and Singer, 1986; model 18b)
Comment (Geology): Geologic Description = The country rocks in the area of this occurrence are Devonian to Ordovician interbedded argillite and limestone, intruded by small plugs of Upper Cretaceous to Lower Tertiary quartz diorite. The occurrence consists of chalcopyrite-bearing skarn zones adjacent to the stocks. Weathering zones has produced limonite gossan and malachite. Samples contain 1,900 ppm copper and 0.6 ppm silver (Hickman and Craddock, 1976).
References
Reference (Deposit): Hickman, R.G., and Craddock, Campbell, 1976, Mineral occurrences near Cantwell, southcentral Alaska: Alaska Division of Geological & Geophysical Surveys Special Report 13, 7 p.
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