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Oakley Peak

Prospect, Inactive

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Commodities and mineralogy

Main commodities Ag; Cu; Zn
Ore minerals pyrite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale MK
Quadrangle map, 1:63,360-scale D-3
Latitude 58.9474
Longitude -154.9994
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is near the summit of Oakley Peak, south of Kulik Lake, in sec. 20, T. 14 S., R. 34 W., of the Seward Meridian. The location is accurate.

Geologic setting

Geologic description

This deposit consists of pyrite-bearing quartz veins that cut Lower Jurassic, Talkeetna Formation that consists mainly of volcanic and volcaniclastic rocks (Riehle and others, 1993). The country rocks are propylitically altered. Several small prospect pits probably date from about 1966 (also see Kulik Kopper MK007). Church, Riehle, and Goldfarb (1993) report values in rocks of up to 1,000 ppm copper, 340 ppm zinc, and 2 ppm silver.
Geologic map unit (-155.001491673073, 58.9467050391834)
Mineral deposit model Polymetallic vein (Cox and Singer, 1986; model 22c).
Mineral deposit model number 22c
Age of mineralization Early Jurassic or younger; the pyrite-bearing quartz veins cut the Early Jurassic Talkeetna Formation.
Alteration of deposit Country rock is propylitically altered.

Production and reserves

Workings or exploration Several small prospect pits probably date from about 1966 (also see Kulik Kopper MK007).
Indication of production None
Production notes None.

References

References

Church, S.E., Riehle, J.R., and Goldfarb, R.J., 1993, Interpretation of exploration geochemical data for the Mount Katmai quadrangle, and adjacent parts of the Afognak and Naknek quadrangles, Alaska: U.S. Geological Survey Bulletin 2020, 67 p., 3 plates, scale 1:250,000.
Church, S.E., Riehle, J.R, Magoon, L.B., and Campbell, D.L., 1992, Mineral and energy resource assessment maps of the Mount Katmai, Naknek, and western Afognak quadrangles, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF 2021-F, 22 p., 2 sheets, scale 1:250,000.
Reporters F.H. Wilson, S.E. Church, and D.P. Bickerstaff (U.S. Geological Survey)
Last report date 8/31/2005