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PMRGX-19

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Ag; Cu
Ore minerals pyrite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale PM
Quadrangle map, 1:63,360-scale C-2
Latitude 55.699
Longitude -160.524
Nearby scientific data Find additional scientific data near this location
Location and accuracy The map site of this occurrence is at an elevation of about 750 feet, near the middle fork of the headwaters of Lawrence Creek. This site is referred to as PMRGX-19 in Wilson and others (1988, locality 68). The location is accurate to within 2,500 feet.

Geologic setting

Geologic description

This occurrence consists of numerous quartz-pyrite veins in coarse-grained granodiorite (Wilson and others, 1988). One sample collected by the U.S. Geological Survey in the mid-1980s was reported to be anomalous in copper and silver (Wilson and others, 1988).
Geologic map unit (-160.526024214736, 55.6981787681341)
Mineral deposit model Porphyry Cu (Cox and Singer, 1986; model 17)
Mineral deposit model number 17

Production and reserves

Workings or exploration Rock sample 86AWs358, collected by the U.S. Geological Survey in the mid-1980s was reported to be anomalous in copper and silver (Wilson and others, 1988).
Indication of production None

Additional comments

The site is located within the Alaska Peninsula Natural Wildlife Refuge.

References

MRDS Number 10308105

References

Wilson, F.H., Detterman, R.L., Miller, J. W., and Case, J.E., 1995, Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-2272, 1 sheet, scale 1:250,000.
Wilson, F.H., Harris, E.E., and Bailey, E.A., 1987, Preliminary analytical results and sample locality map for rock samples collected in 1985 and 1986, Port Moller and Stepovak Bay quadrangles, Alaska: U.S. Geological Survey Open-File Report 87-497, 44 p., 1 plate, scale 1:250,000.
Wilson, F.H., White, W.H., and DuBois, G.D., 1988, Brief descriptions of mines, prospects, and mineral occurrences in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 88-666, 128 p., 1 plate, scale 1:250,000.
Reporters S.H. Pilcher
Last report date 1/24/2001