Snow Bird

The Snow Bird is a silver 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

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: Snow Bird

Commodity

Primary: Silver
Primary: Copper

Location

State: Alaska
District: Nizina

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: Basaltic Cu (BC name is Volcanic redbed Cu)

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Name: Greenstone
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic

Name: Greenstone
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Triassic

Analytical Data

Not available

Materials

Ore: Bornite
Ore: Chalcocite
Ore: Chalcopyrite
Gangue: Calcite
Gangue: Pyrite
Gangue: Quartz

Comments

Comment (Reference): Primary Reference = Moffit, 1918; MacKevett and Smith, 1968

Comment (Workings): Workings / Exploration = Explored by two short adits. Sample of bornite-rich pod assayed: 50 ppm Ag (MacKevett and Smith, 1968).

Comment (Deposit): Model Name = Basaltic Cu

Comment (Geology): Geologic Description = Quartz-calcite vein 0.5-1.5 m thick containing bornite, chalcocite, chalcopyrite and pyrite, in Triassic Nikolai Greenstone.

Comment (Exploration): Status = Inactive

References

Reference (Deposit): MacKevett, E.M., Jr., 1974, Geologic map of the McCarthy B-5 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-1146, scale 1:63,360.

Reference (Deposit): Miller, D.J., 1946, Copper deposits of the Nizina district, Alaska: U.S. Geological Survey Bulletin 947F, p. 93-120.

Reference (Deposit): Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.

Reference (Deposit): MacKevett, E.M., Jr., and Smith, J.G., 1968, Distribution of gold, copper, and some other metals in the McCarthy B-4 and B-5 quadrangles, Alaska: U.S. Geological Survey Circular 604, 25 p.

Reference (Deposit): MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, scale 1:250,000.

Reference (Deposit): Moffit, F.H., 1918, Mining in the lower Copper River basin, in U.S. Geological Survey Staff, Mineral resources of Alaska, report on progress of investigations in 1916: U.S. Geological Survey Bulletin 662, p. 155-182.

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