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Windy Creek

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Cu; Pb; Zn
Ore minerals pyrite

Geographic location

Quadrangle map, 1:250,000-scale MK
Quadrangle map, 1:63,360-scale A-4
Latitude 58.2399
Longitude -155.3196
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at the head of Windy Creek on the western flank of the Buttress Range. It is at an elevation of about 1,750 feet in the NW1/4 sec. 27, T. 22 S., R. 37 W., of the Seward Meridian. The location is accurate within one-quarter mile.

Geologic setting

Geologic description

Church, Riehle, and Goldfarb (1993) collected rocks here that contain 150 parts per million (ppm) or more copper, 200 ppm or more lead, and 1,500 ppm or more zinc. The samples were collected in talus below a large breccia body exposed in a cliff wall. The breccia body contains clasts of Upper Jurassic Naknek (?) Formation sedimentary rock in a matrix of pyrite. They estimated that the breccia crops out over an area at 33 by 100 feet. in size.
Geologic map unit (-155.321659432961, 58.2391995625643)
Mineral deposit model Polymetallic vein (Cox and Singer, 1986; model 22c).
Mineral deposit model number 22c
Age of mineralization Late Jurassic (?) or younger; the breccia body contains clasts that are probably from the Naknek Formation.

Production and reserves

Workings or exploration Apparently only geochemical sampling by government geologists (Church, Riehle, and Goldfarb, 1993).
Indication of production None

Additional comments

This occurrence is in Katmai National Monument.

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