|Quadrangle map, 1:250,000-scale||SI|
|Quadrangle map, 1:63,360-scale||D-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of about 600 feet in a rock pit along a logging road 0.8 mile west of East Point at the mouth of Tenakee Inlet. The occurrence is 0.2 mile south-southeast of the center of sec. 12, T. 47 S., R. 64 E. It is location P-23 of Bittenbender and others (1999) and MAS no. 0021140303 (U.S. Bureau of Land Management, 2002). The location is accurate within 0.2 mile.|
Geologic descriptionThe rocks in the vicinity of this occurrences are part of the Devonian and/or Silurian, Kennel Creek Limestone which consists of limestone, minor dolomite, limestone breccia, shale, siltstone, and conglomerate (Lathram and others, 1965). Bittenbender and others (1999) collected samples in a (borrow?) pit of mineralized marble and basalt with pyrite. One limestone boulder contained up to 50% sphalerite in clots; another sample of marble contained up to 20 percent sphalerite, 1 percent galena, and chalcopyrite. High grade samples contained up to 26 percent zinc, 1.74 percent lead, 460 parts per million (ppm) copper, and 52 ppm silver.
|Geologic map unit||(-134.97227758725, 57.8061614584537)|
|Mineral deposit model||Silver, copper, lead, and zinc minerals in marble.|
|Age of mineralization||Silurian or younger based on the age of the host rock.|
|Workings or exploration||Apparently only surface sampling by government agencies.|
|Indication of production||None|
Bittenbender, P., Still, J.C., Maas, K., and McDonald, M., Jr., 1999, Mineral resources of the Chichagof and Baranof Islands area, southeast Alaska: Bureau of Land Management, BLM-Alaska Technical Report 19, 222 p.
U.S. Bureau of Land Management, 2002, Alaska mineral locations database report (Sitka quadrangle), July 2, 2002, 205 p. [http://imcg.wr.usgs.gov/dem.html]
|Reporters||Donald Grybeck (U.S. Geological Survey)|
|Last report date||5/5/2005|