The Kalvich Area is a fluorine-fluorite and lead 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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Kalvich Area MRDS details
Site Name
Primary: Kalvich Area
Commodity
Primary: Fluorine-Fluorite
Primary: Lead
Secondary: Molybdenum
Secondary: Tungsten
Secondary: Tin
Secondary: Zinc
Secondary: Copper
Location
State: Alaska
District: Noatak
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: Skarn Zn-Pb
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Fluorite
Ore: Galena
Ore: Malachite
Comments
Comment (Deposit): Model Name = Skarn
Comment (Workings): Workings / Exploration = A representative bedrock chip sample from a 100 ft. by 7 ft. (33 m x 2 m) area of highly foliated fine grained intrusive rock yielded 86 ppm Cu, 2000 ppm Pb, 94 ppm Zn, 53 ppm Mo, 14 ppm Ag, 34 ppm Sn, 1400 ppm F (Degenhart and others, 1978, p. 340-350).???
Comment (Deposit): Other Comments = This occurrence is one of several small skarn zones at granitic contacts through out the Ambler River quadrangle (Degenhart and others, 1978). Located in the Noatak National Preserve.
Comment (Geology): Geologic Description = Disseminated pyrite, galena, fluorite and malachite in Kalvich pluton along contact zone. Deposit is 1 mi (1.6 km) in strike length. Visual estimate of 1% galena and 1% fluorite in granitic rock along north margin of pluton. About 8 sq. mi. (13 sq km0 of the surrounding area is geochemically anomalous in Pb and Zn. n. The Kalvich pluton is in contact with black siltstone interbedded with marble and quartz-mica schist to the north and east and with gray to black marble of the Skajit limestone to the south and west. The northern margin of the pluton is a migmatitic contact zone containing moderately anomalous Pb, Zn, Mo, Sn and W (Degenhart and others, 1978, p. 340-350).
Comment (Reserve-Resource): Reserves = the possibility of even a small tonnage of economic grade material being discovered is remote.
Comment (Reference): Primary Reference = Degenhart and others, 1978
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Degenhart, C.E., Griffis, R.J., McQuat, J.F., and Bigelow, C.G., 1978, Mineral studies of the western Brooks Range performed under contract to the U.S. Bureau of Mines, Contract #JO155089: U.S. Bureau of Mines Open-File Report 103-78, 529 p., 11 sheets.
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