The Styx River is a zinc, lead, molybdenum, and silver 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
Elevation:
Commodity: Zinc, Lead, Molybdenum, Silver
Lat, Long: 61.53917, -153.15778
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Styx River MRDS details
Site Name
Primary: Styx River
Commodity
Primary: Zinc
Primary: Lead
Primary: Molybdenum
Primary: Silver
Location
State: Alaska
District: McGrath
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: Porphyry Cu-Mo
Model Name: Polymetallic veins
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Quartz-sericite-pyrite replacement and veining.
Rocks
Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Galena
Ore: Pyrite
Ore: Sphalerite
Gangue: Quartz
Gangue: Sericite
Comments
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Late Cretaceous or Tertiary Mineralized granitic rocks in this area are commonly Late Cretaceous or Early Tertiary parts of the Alaska-Aleutian Range batholith (Reed and Elliott, 1970; Reed and Lanphere, 1973).
Comment (Deposit): Model Number = 22c?, 21a?
Comment (Reference): Primary Reference = Reed and Elliott, 1970
Comment (Geology): Geologic Description = Reed and Elliott (1970) reported that iron-stained and altered intrusive rocks are present along about 200 feet of this creek. The altered rocks consist dominantly of quartz and sericite with minor potassium feldspar and altered biotite. These rocks generally contain less than one percent sulfide minerals, including pyrite, sphalerite, and galena, that are disseminated and in quartz veins as much as 2 inches wide. Sphalerite and galena also occur as thin veinlets and disseminations in felsite. Shear zones in the altered intrusions are also mineralized with sulfides. Besides zinc and lead values, rock samples contain as much as 15 ppm silver and 300 ppm molybdenum. The altered intrusive rocks are probably Late Cretaceous or Tertiary parts of the Alaska-Aleutian Range batholith (Reed and Lanphere, 1973).
Comment (Workings): Workings / Exploration = Reconnaissance surface observation and sampling has been completed in this area (Reed and Elliott, 1970).
Comment (Deposit): Model Name = Polymetallic veins? or porphyry Cu-Mo? (Cox and Singer, 1986, model 22c and 21a)
References
Reference (Deposit): Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska; Supplement to Open-File Report 76-485; Part A, Summaries to January 1, 1981: U.S. Geological Survey Open-File Report 81-1343-A, 25 p.
Reference (Deposit): Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range: U.S. Geological Survey Open-File Report 70-217, 145 p., 1 sheet, scale 1:250,000. (Also published as U.S. Geological Survey Open-File Report 413).
Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-485, 101 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Lime Hills quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-412, 1 sheet, scale 1:250,000.
Reference (Deposit): Reed, B. L., and Lanphere, M. A., 1973, Alaska-Aleutian Range batholith-- Geochronology, chemistry, and relation to circum-Pacific plutonism: Geological Society of America Bulletin, v. 84, no. 8, p. 2583-2610.
Reference (Deposit): Gamble, B.M., Bailey, E. A., and Reed, B. L., 1989, Gold occurrences near Snowcap Mountain, Lime Hills B-2 quadrangle, Alaska: U.S. Geological Survey Open-File Report 89-0646, 8 p.
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