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  3. Alaska Resource Data File (ARDF)

VABM Orphan

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Pb; Th; U
Other commodities Cu; Zn

Geographic location

Quadrangle map, 1:250,000-scale CO
Quadrangle map, 1:63,360-scale C-1
Latitude 67.61
Longitude -141.22
Nearby scientific data Find additional scientific data near this location
Location and accuracy Location plotted is between locality 4b of Barker (1981, p.25) and locality 2 of Barker and Clautice (1978, p. 14); north side of Rapid River in headwaters area and 3 mi (4.8 km) northwest of VABM Orphan; located to within 1 mi (1.6 km).

Geologic setting

Geologic description

Soil anomalies up to 52 ppm U, 36 ppm Th, 2400 ppm Pb, 1360 ppm Zn and 120 ppm Cu, and a radiometric anomaly of 400 cps, occur in a 2400 foot x 600 foot area of tundra (Barker, 1981, p. 97-98). Nearby float is tourmaline- and muscovite-bearing aplite of the Old Crow Batholith.
Geologic map unit (-141.22271221259, 67.609754231651)
Mineral deposit model Lode; felsic-plutonic related U-Th +Pb, Zn, Cu.

Production and reserves

Indication of production None

References

MRDS Number A106086

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