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Unnamed (on tributary to Hunt Creek)

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Pb; Zn
Ore minerals galena; pyrite; sphalerite
Gangue minerals calcite; quartz

Geographic location

Quadrangle map, 1:250,000-scale SE
Quadrangle map, 1:63,360-scale A-2
Latitude 66.17
Longitude -159.74
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 850 feet on an unnamed, north-flowing tributary to Hunt Creek. This site is in section 21, T. 9 N., R. 5 W., of the Kateel River Meridian. Cobb (1972, MF-406), unnumbered location; Grybeck (1977), location 10; and Barker (1985), fig. 7, location K.

Geologic setting

Geologic description

This occurrence consists of quartz-calcite veins in Cretaceous pink syenite that contain galena, sphalerite, and pyrite. A composite grab sample of sulfide-bearing rock contained up to 2% Pb and 1% Zn. A stream-sediment sample collected one mile downstream from the occurrence was anomalous in silver, copper, lead and zinc. The extent of the mineralized area could not be determined because of poor exposures (Elliott and Miller, 1969). Barker (1985) collected two stream-sediment samples from drainages north and west of the occurrence. Both samples contained 115 ppm Pb. He also noted quartz stockworks in granitic and volcanic rocks in the vicinity.
Geologic map unit (-159.742707798798, 66.1693699324636)
Mineral deposit model Polymetallic veins (Cox and Singer, 1986; model 22c)
Mineral deposit model number 22c
Age of mineralization Cretaceous or younger.

Production and reserves

Workings or exploration Occurrence sampled by U.S. Geological Survey (Elliott and Miller, 1969).
Indication of production None

References

MRDS Number A015697

References

Barker, J.C., 1985, Sampling and analytical results of a mineral reconnaissance in the Selawik Hills area, northwestern Alaska: U.S. Bureau of Mines Open-File Report 43-85, 67 p.
Cobb, E.H., 1972, Metallic mineral resources map of the Selawik quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-406, 1 sheet, scale 1:250,000.
Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in five quadrangles in west central Alaska (Hughes, Kotzebue, Melozitna, Selawik, Shungnak): U.S. Geological Survey Open-File Report 75-627, 58 p.
Eakins, G.R., Jones, B.K. and Forbes, R.B., 1977, Investigation of Alaska's uranium potential: Alaska Division of Geological and Geophysical Surveys Open-File Report 109, 213 p., 10 sheets, scale 1:40,000.
Elliott, R.L. and Miller, T.P., 1969, Results of stream-sediment sampling in western Candle and southern Selawik quadrangles, Alaska: U.S. Geological Survey Open-File Report 353.
Grybeck, Donald, 1977, Map showing known mineral deposits of the Brooks Range, Alaska: U.S. Geological Survey Open-File Report 77-166-C, 45 p., 1 sheet, scale 1:1,000,000.
Reporters Anita Williams (Anchorage, AK)
Last report date 12/2/1999