Silver Horn

The Silver Horn is a molybdenum 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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Site Name

Primary: Silver Horn

Commodity

Primary: Molybdenum
Secondary: Zinc
Secondary: Mercury

Location

State: Alaska
District: Bristol Bay region

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

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Reference): Primary Reference = Eakin, 1968

Comment (Workings): Workings / Exploration = Some surface prospecting and a reconnaissance geochemical survey has been completed in this area (Eakin, 1968).

Comment (Exploration): Status = Inactive

Comment (Geology): Geologic Description = Cobb (1972 [MF 375]) identified this as a molybdenum occurrence reported in a written communication from W. H. Waskey in 1935 (probably to J. B. Mertie Jr.). The general area is one where a Cretaceous or Tertiary granitic pluton (Mertie, 1938) sharply intrudes what are probably Middle Jurassic to Lower Cretaceous clastic sedimentary rocks and interbedded volcanic rocks like those in the eastern part of the Hagemeister Island quadrangle (KJvs unit of Hoare and Coonrad, 1978). According to Mertie's (1938) geologic map of this area, most of this unnamed drainage is within the granitic pluton. Eakin (1968) collected stream sediment samples around Silver Horn. The only slightly anomalous molybdenum value (5 ppm) in all of Eakin's samples is from south of Silver Horn; weakly anomalous zinc and several anomalous mercury values were also obtained by Eakin (1968) in his samples south of Silver Horn. Eakin (1968) cautioned that the analytical technique used for his mercury determinations had potential pitfalls. However, field tests showed the expected anomalous mercury results in areas of known mineralization (Red Top mine, DI002) and follow-up geochemical studies (Eakin, 1969) roughly duplicated earlier anomalous mercury results in the southern Lake Aleknagik area.

Comment (Geology): Age = Cretaceous or Tertiary ; mineralization in this area may be related to the Cretaceous or Tertiary granitic pluton that sharply crosscuts clastic sedimentary rocks.

References

Reference (Deposit): Eakins, G.R., 1969, Supplement to Geochemical Report No. 17, a geochemical investigation of the Wood River-Tikchik Lakes area, southwestern Alaska: Alaska Division of Mines and Geology, 6 p.

Reference (Deposit): Mertie, J.B., Jr., 1938, The Nushagak district, Alaska: U.S. Geological Survey Bulletin 903, 96 p.

Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Dillingham quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-375, 1 sheet, scale 1:250,000.

Reference (Deposit): Hoare, J.M., and Coonrad, W.L., 1978, Geologic map of the Goodnews and Hagemeister Island quadrangles region, southwestern Alaska: U.S. Geological Survey Open-File Report 78-9-B, two sheets, scale 1:250,000.

Reference (Deposit): Eakins, G.R., 1968, A geochemical investigation of the Wood River-Tikchik area, southwestern Alaska: Alaska Division of Mines and Minerals, Geochemical Report 17, 31 p.

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