|Quadrangle map, 1:250,000-scale||SB|
|Quadrangle map, 1:63,360-scale||C-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This site is located on Kupreanof Peninsula approximately 2.55 miles east-southeast of Pad Island and 1.5 miles northeast of Island Bay. It is referred to as SBRGX-42 in Wilson and others (1988, locality 16). The location is accurate to within 2 miles.|
Geologic descriptionThis occurrence is in porphyritic dacite that is part of an undivided sequence of late Miocene volcanic rocks (Wilson and others, 1988, 1995). Potassium-argon dating of hornblende in the dacite gave an age of approximately 10 million years (Wilson and others, 1994). One sample collected by the U.S. Geological Survey was reported to contain anomalous values in silver (Wilson and others, 1988).
|Geologic map unit||(-159.622112685469, 55.7291914684828)|
|Workings or exploration||Rock sample 83ACe52 collected by the U.S. Geological Survey in the mid-1980s, was reported to be anomalous in silver (Wilson and others, 1988).|
|Indication of production||None|
Additional commentsThis site is in the Alaska Peninsula National Wildlife Refuge, near land selected by the Aleut corporation.
Angeloni, L.M., Wilson, F.H., and Sutley, S.J., 1985, Map and tables showing preliminary rock geochemical data, Port Moller, Stepovak Bay, and Simonof Island quadrangles, Alaska: U.S. Geological Survey Open-File Report 85-470, 179 p., 1 sheet, scale 1:250,000.
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., Shew, N., DuBois, G.D., and Bie, S.W., 1994, Sample locality map and analytical data for potassium-argon ages in the Port Moller, Stepovak Bay and Simeonof Island quadrangles, Alaska Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2155-E, 18 p., 1 map sheet, scale 1:250,000.
|Last report date||11/6/2000|