The Unnamed (south of lower 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 lower Windy Creek) MRDS details
Site Name
Primary: Unnamed (south of lower Windy Creek)
Commodity
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
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Propylitic alteration of greenstone.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Azurite
Ore: Bornite
Ore: Chalcocite
Ore: Chalcopyrite
Ore: Covellite
Ore: Copper
Gangue: Epidote
Gangue: Quartz
Gangue: Siderite
Comments
Comment (Reference): Primary Reference = Glavinovich, 1967
Comment (Workings): Workings / Exploration = Surface chip sampling only.
Comment (Geology): Geologic Description = The general area of this occurrence is underlain by the Middle or Upper Triassic Nikolai Greenstone, which consists of massive, subaerial and submarine basalt flows and minor interbedded volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, and radiolarian chert (Nokleberg and others, 1992). The occurrence is in greenstone and consists of a small, hydrothermally altered shear zone containing epidote, copper sulfide minerals, and possibly native copper and an iron carbonate mineral. Weathering locally produces malachite and azurite-coated float and encrustations.
Comment (Deposit): Model Name = Hydrothermally altered shear zone.
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Triassic or younger.
References
Reference (Deposit): Saunders, R.H., 1961, Susitna-MacClaren area: Alaska Division of Mines and Mineral Report for the year 1961, 40 p.
Reference (Deposit): Glavinovich, P.S., 1967, Trace element copper distribution and areal geology in a portion of the Clearwater Mountains, Alaska: University of Alaska Minerals Industry Research Laboratory, Report 10, 55 p.
Reference (Deposit): Nokleberg, W.J., and others, 1992, Circum-North Pacific terrane map, in Tracy, K.V., Anker, E. M., Ryan, C., Hoffman, V. , eds., International conference on Arctic margins, p. 44.
Reference (Deposit): Kaufman, M.A., 1964, Two new occurrences of ore minerals in the Denali area (Healy A-1 and Mt. Hayes B-6): Alaska Territorial Department of Mines Prospect Evaluation 67-4, 5 p.
Reference (Deposit): Smith, T.E., 1981, Geology of the Clearwater Mountains, south-central Alaska: Alaska Division of Geological &Geophysical Surveys Geologic Report 60, 72 p., 3 sheets, scale 1:63,360.
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