Unnamed (southeast of Zane Pass) (ARDF #SH012) Au, Cu

Unnamed (southeast of Zane Pass)

Occurrence, Inactive

Commodities and mineralogy

Main commodities	Au; Cu
Ore minerals	chalcopyrite; gold; pyrite

Geographic location

Quadrangle map, 1:250,000-scale	SH
Quadrangle map, 1:63,360-scale	B-1
Latitude	66.443
Longitude	-156.388
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	This occurrence is at an elevation of 1,600 feet in the Zane Hills about 4 miles southeast of Zane Pass. The map site is in the S1/2 section 7, T. 12 N., R. 12 E., of the Kateel River Meridian. Cobb (1972, MF-448), locations 5-7 and Miller and Ferrians (1968), figure 3.

Geologic setting

Geologic description This occurrence consists of pyrite- and chalcopyrite-bearing quartz veins as much as 3 feet thick (Miller and Ferrians, 1968). The veins cut Jurassic-Cretaceous meta-andesite north of the contact with the Cretaceous Zane Hills pluton. Grab samples contained 0.5% Cu and 0.6 ppm Au.
Geologic map unit	(-156.390671092043, 66.4424365642317)
Mineral deposit model	Polymetallic veins (Cox and Singer, 1986; model 22c).
Mineral deposit model number	22c
Age of mineralization	Jurassic-Cretaceous or younger.

Production and reserves

Indication of production	None

References

MRDS Number	A015597
References Cobb, E.H., 1972, Metallic mineral resources map of the Shungnak quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-448, 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. Miller, T.P., and Ferrians, O.J., Jr., 1968, Suggested areas for prospecting in the central Koyukuk River region, Alaska: U.S. Geological Survey Circular 570, 12 p.
Reporters	Anita Williams (Anchorage, AK)
Last report date	12/16/1999