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White Mountain Creek

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Ag; Cu; Pb
Other commodities Zn
Ore minerals chalcopyrite; galena
Gangue minerals magnetite

Geographic location

Quadrangle map, 1:250,000-scale CO
Quadrangle map, 1:63,360-scale B-1
Latitude 67.48
Longitude -141.16
Nearby scientific data Find additional scientific data near this location
Location and accuracy Located on spur ridge about 2 mi 3.2 km) west-southwest of VABM Cone, at locality 2 of Barker (1981, p. 25); located to within 3000 ft (915 m).

Geologic setting

Geologic description

Mineralized (disseminated chalcopyrite and galena) float in phyllites occurs in an east-northeast trending belt 50-150 ft (15-46 m) wide by 1200 ft (366 m) long. Bedrock in the area is black phyllite and interbedded green and maroon argillite of Paleozoic? age locally intruded by porphyritic rhyolite sills and dikes, and mafic dikes (Barker, 1981, p. 64-68).
Geologic map unit (-141.162704167237, 67.4797531379869)
Mineral deposit model Lode, vein?
Alteration of deposit Silicification and propylitization of a shear zone in phyllites

Production and reserves

Workings or exploration Rock samples contain up to 47 ppm Ag, 3.3% Cu, 6600 ppm Pb and 1300 ppm Zn. Soil samples contain up to 480 ppm Cu, 1.8 ppm Ag, 530 ppm Pb and 159 ppm Zn (Barker, 1981, p. 70-74).
Indication of production None

Additional comments

See MAS/MILS Sequence number 0020330007 (USBM, 1995).

References

MRDS Number A106087

References

Barker, J.C., 1981, Mineral investigations in the Porcupine River drainage, Alaska: U.S. Bureau of Mines Open-File Report 27-81, 189 p., 2 sheets.
Barker, J.C., and Clautice, K.H., 1978, Mineral reconnaissance of the Porcupine River region--A summary report: U.S. Bureau of Mines Open-File Report 87-78, 20 p.
Reporters J.M. Schmidt
Last report date 10/15/1992