The Silver King is a copper, silver, and gold 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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Silver King MRDS details
Site Name
Primary: Silver King
Commodity
Primary: Copper
Primary: Silver
Primary: Gold
Secondary: Bismuth
Secondary: Antimony
Secondary: Cobalt
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: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Simple Sb (veins, pods, etc)
Model Name: Skarn Cu
Model Name: Porphyry Cu-Au
Model Name: Polymetallic veins
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Skarn formation widespread; porphyry-type alteration is also reported.
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Chalcopyrite
Ore: Pyrite
Ore: Pyrrhotite
Ore: Stibnite
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Exploration): Status = Active
Comment (Reference): Primary Reference = Salisbury and Dietz, 1984
Comment (Deposit): Model Name = Polymetallic vein, Cu-Au porphyry, Cu skarn, and Simple Sb veins (Cox and Singer, 1986; models 22c, 20c, 18b, and 27d)
Comment (Deposit): Model Number = 22c, 20c, 18b, 27d
Comment (Geology): Age = Similar sulfide-bearing intrusive rocks and veins in the district have been dated as Late Cretaceous (Swainbank and others, 1977), but Au-Ag-stibnite and Ag-Pb-Zn veins could be younger (Early Tertiary).
Comment (Geology): Geologic Description = Thick Quaternary glacial deposits and Upper Tertiary sedimentary strata cover the bedrock in this area. The country rocks in the area of the Silver King prospect consist of Upper Jurassic to Upper Triassic(?) crystal tuff, argillite, chert, graywacke, and limestone that are intruded by Upper Cretaceous quartz diorite porphyry stocks and dikes (Wilson and others, 1998). Intrusion of the dikes and quartz-sulfide mineralization are localized along the nearby Chulitna fault. The Silver King deposit includes: tactite (skarn) replacement bodies; auriferous arsenopyrite-chalcopyrite quartz veins; stibnite-gold-silver veins; silver-lead-zinc veins; and as breccia pipes associated with porphyry stock and dikes. Sporadic mineralization is present over a 2,000 feet by 800 feet area. (Hawley and Clark, 1974).? Hawley and Clark (1974) reported the following sample analyses. A massive sulfide pod in skarn contained 8.3 ounces of gold per ton. An arsenopyrite-rich vein contained 50 ppm silver, 200 ppm gold, 700 ppm cobalt, 1,500 ppm copper, 200 ppm lead, 500 ppm antimony, 200 ppm zinc, more than 1,000 ppm bismuth and more than 10,000 ppm arsenic. A stibnite-rich vein contained 10 ppm silver, 23 ppm gold, 200 ppm copper, 300 ppm lead, 1,500 ppm zinc, 7,000 ppm arsenic and more than 10,000 ppm antimony. Salisbury and Dietz (1984) reported the following: arsenopyrite veins returned assay values of 0.85 ounces of silver per ton, 0.87 ounces of gold per ton and 0.44% cobalt; and stibnite-bearing veins contained 0.12 ounces of silver per ton and 0.29 ounces of gold per ton. The Silver King deposit is part of a northeast trending mineralized zone that includes the Liberty (HE028), Lucrata (HE029) and Eagle (HE030) prospects.
Comment (Workings): Workings / Exploration = Surface workings, mostly trenches and pits. Site-specific geophysical surveys noted in literature and probably drill testing, but specific data are not available.? Hawley and Clark (1974) reported the following sample analyses. A massive sulfide pod in skarn contained 8.3 ounces of gold per ton. An arsenopyrite-rich vein contained 50 ppm silver, 200 ppm gold, 700 ppm cobalt, 1,500 ppm copper, 200 ppm lead, 500 ppm antimony, 200 ppm zinc, more than 1,000 ppm bismuth and more than 10,000 ppm arsenic. A stibnite-rich vein contained 10 ppm silver, 23 ppm gold, 200 ppm copper, 300 ppm lead, 1,500 ppm zinc, 7,000 ppm arsenic and more than 10,000 ppm antimony. Salisbury and Dietz (1984) reported the following: arsenopyrite veins returned assay values of 0.85 ounces of silver per ton, 0.87 ounces of gold per ton and 0.44% cobalt; and stibnite-bearing veins contained 0.12 ounces of silver per ton and 0.29 ounces of gold per ton.
References
Reference (Deposit): Hawley, C.C., Clark, A.L., Herdrick, M.A., and Clark, S.H.B., 1969, Results of geological and geochemical investigations in an area northwest of the Chulitna River, central Alaska Range: U.S. Geological Survey Circular 617, 19 p.
Reference (Deposit): Bundtzen, T.K., 1983, Mineral resource modeling, Kantishna and Dunkle mine study areas: Alaska Division of Geological "&" Geophysical Surveys Report of Investigations 83-12, 51 p.
Reference (Deposit): Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-1062, 113 p.
Reference (Deposit): Swainbank, R.C., Smith, T.E., and Turner, D.L., 1977, Geology and K-Ar age of mineralized intrusive rocks from the Chulitna mining district, central Alaska, in Short notes on Alaskan geology-1977: Alaska Division of Geological and Geophysical Surveys, Geologic Report 55, p. 23-28.
Reference (Deposit): Hawley, C.C., and others, 1978, Mineral appraisal of lands adjacent to Mt. McKinley National Park, Alaska. Contract No. JO166107: U.S. Bureau of Mines Open-File Report 24-78, 274 p., 12 sheets.
Reference (Deposit): Hawley, C.C., and Clark, A.L., 1974, Geology and mineral deposits of the upper Chulitna district, Alaska: U.S. Geological Survey Professional Paper 758-B, p. 1-47, 2 sheets, scale 1:12,000 and 1:48,000.
Reference (Deposit): Hawley, C.C., and Clark, A.L., 1968, Occurence of gold and other metals in the upper Chulitna district, Alaska: U.S. Geological Survey Circular 564, 21 p.
Reference (Deposit): Capps, S.R., 1919, Mineral resources of the upper Chulitna region: U.S. Geological Survey Bulletin 692-D, p. 207-232.
Reference (Deposit): Ross, C.P., 1933, The Valdez Creek mining district, Alaska: U.S. Geological Survey Bulletin 849, p. 289-467.
Reference (Deposit): Salisbury and Dietz, Inc., 1984, 1983 mineral resource studies: Kantishna Hills and Dunkle Mine areas, Denali National Park and Preserve, Alaska: U.S. Bureau of Mines, Contract No. S0134031, 1080 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): Balen, M.D., 1990, Geochemical sampling results from the Bureau of Mines Investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Open-File Report 34-90, 218 p., 2 plates, scale 1:250,000.
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