The Dead Creek (prospect) is a zinc 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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Dead Creek (prospect) MRDS details
Site Name
Primary: Dead Creek (prospect)
Commodity
Primary: Zinc
Primary: Copper
Secondary: Silver
Location
State: Alaska
District: Copper River
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
Model Name: Polymetallic veins
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Oxidation of iron and copper minerals.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Sphalerite
Ore: Malachite
Ore: Chalcopyrite
Ore: Azurite
Gangue: Quartz
Comments
Comment (Deposit): Model Name = Possibly polymetallic veins (Cox and Singer, 1986; model 22c)
Comment (Deposit): Other Comments = Site examined as part of a U.S. Bureau of Mines and U.S.G.S. mineral resource evaluation of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 1984).
Comment (Exploration): Status = Inactive
Comment (Workings): Workings / Exploration = Jansons and others (1984) report a 60-foot-long adit and one open pit. A chip sample contained: 91 ppm Cu, 0.8 ppm Ag, 140 ppm Zn; one grab sample contained: 8.9% Cu, 2.7 oz Ag/ton, and 0.31% Zn.
Comment (Reference): Primary Reference = Jansons and others, 1984
Comment (Geology): Geologic Description = The Dead Creek prospect is in Upper Cretaceous Valdez Group metasedimentary rocks (Nelson and others, 1985). The deposit consists of a 60-foot-wide shear zone containing a 10-foot-wide gossan that carries sulfide-bearing quartz veinlets (Jansons and others, 1984). Ore minerals include azurite, chalcopyrite, malachite, and sphalerite. Jansons and others (1984) report a 60-foot-long adit and one open pit. A chip sample contained: 91 ppm Cu, 0.8 ppm Ag, 140 ppm Zn; one grab sample contained: 8.9% Cu, 2.7 oz Ag/ton, and 0.31% Zn.
References
Reference (Deposit): Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, scale 1:250,000.
Reference (Deposit): Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, Southcentral Alaska: U.S. Bureau of Mines Open-File Report 5-84, 218 p., 2 sheets, scale 1:250,000.
Reference (Deposit): Nelson, S.W., Dumoulin, J. A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, 16 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Nelson, S.W., Miller, M.L., Barnes, D.F., Dumoulin, J.A., Goldfarb, R.J., Koski, R.A., Mull, C.G., Pickthorn, W.J., Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral resource potential of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1645-A, 24 p., 1 plate, scale 1:250,000.
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