Unnamed (near Styx River)

The Unnamed (near Styx River) is a lead, copper, gold, silver, and zinc 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

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Unnamed (near Styx River)

Commodity

Primary: Lead
Primary: Copper
Primary: Gold
Primary: Silver
Primary: Zinc

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 (North America)
Model Name: Polymetallic veins

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Quartz veining and possibly quartz-pyrite-sericite replacement.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Chalcopyrite
Ore: Galena
Ore: Pyrite
Ore: Pyrrhotite
Ore: Sphalerite
Gangue: Quartz
Gangue: Sericite

Comments

Comment (Workings): Workings / Exploration = Reconnaissance sampling has been completed in this area (Reed and Elliott, 1970).

Comment (Deposit): Model Name = Polymetallic veins and porphyry Cu? (Cox and Singer, 1986, model 22c and 17)

Comment (Deposit): Model Number = 22c, 17?

Comment (Geology): Geologic Description = Reed and Elliott (1970) reported that float of mineralized granitic rock contains disseminated pyrite and minor chalcopyrite and that float of altered felsic rock contains pyrrhotite, sphalerite, galena, and pyrite. The float also contains quartz veins. Samples of altered felsic rock contain as much as 150 ppm silver, 2 percent copper, greater than 2 percent lead and 1 percent zinc, and 0.4 ppm gold. Other float samples from the general area contain as much as 1,000 ppm silver and 0.5 ppm gold. The granitic rocks are Tertiary plutons of the Alaska-Aleutian Range batholith (Cobb and Reed, 1981).

Comment (Reference): Primary Reference = Reed and Elliott, 1970

Comment (Exploration): Status = Inactive

Comment (Geology): Age = Tertiary. Quartz veins and mineralization crosscut float boulders of Tertiary intrusive rocks.

References

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): 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): 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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