|Quadrangle map, 1:250,000-scale||PM|
|Quadrangle map, 1:63,360-scale||B-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This map site, which represents an area of four rock geochemical samples, is at an elevation of about 700 feet, on a broad ridge on western Popof Island approximately 1.25 miles northwest of the head of Red Cove. The site is at the approximate center of the area, in the SE1/4 of sec. 21, T. 56 S., R. 73 W., of the Seward Meridian. The site is referred referred to as PMRGX-7 in Wilson and others (1988, locality 56). The location is accurate to within 1,200 feet.|
Geologic descriptionFour rock samples of altered basalt collected in this area by the U.S. Geological Survey in the mid-1980s contained anomalous values of arsenic, antimony, copper, and lead (Wilson and others, 1988). The basalt is part of the late Eocene to early Oligocene Popof volcanic rocks (Wilson and others, 1995).
|Geologic map unit||(-160.462013973241, 55.3111769799684)|
|Age of mineralization||Eocene or younger.|
|Workings or exploration||Rock samples 85ACe225-227 and 85AWs299 collected by the U.S. Geological Survey in the mid-1980s were reported to be anomalous in antimony, arsenic, copper, and lead (Wilson and others, 1988).|
|Indication of production||None|
Additional commentsThis site is located on land patented by, or interim-conveyed to, the Aleut Corporation.
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.
|Last report date||1/23/2001|