|Quadrangle map, 1:250,000-scale||SB|
|Quadrangle map, 1:63,360-scale||D-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This site is on the west coast of Coal Cape, about 1.2 miles south of the top of Red Bluff Mountain. It is referred to as SBRGX-48 in Wilson and others (1988, locality 22). The location is accurate to within 1,200 feet.|
Geologic descriptionAt this occurrence the rocks consist primarily of sandstone and shale of the Paleocene to Eocene Tolstoi Formation. The site is near the contact with the Eocene to Oligocene Meshik Formation (Wilson and others, 1995). The sedimentary rocks are cut by andesite or basalt dikes that tend to be pyritized and iron-stained. The sandstone locally contains disseminated pyrite and rare aggregates of pyrite. Some small, barren, calcite veins occur in fracture zones. Samples collected by the U.S. Geological Survey were reported to contain anomalous amounts of lead, zinc, antimony, and arsenic (Wilson and others, 1988).
|Geologic map unit||(-159.053996308261, 55.9162102301822)|
|Age of mineralization||Tertiary.|
|Alteration of deposit||Pyritization and iron-staining.|
|Workings or exploration||Rock samples 84AGe21-26, collected by the U.S. Geological Survey in the mid-1980s, were reported to contain anomalous amounts of lead, zinc, antimony, and arsenic (Wilson and others, 1988).|
|Indication of production||None|
Additional commentsThis site is located on land interim-conveyed to, or patented by, the Bristol Bay Native 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.
|Last report date||11/9/2000|