Main commodities | Ag; Au |
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Other commodities | Mo; Zn |
Ore minerals | sphalerite |
Quadrangle map, 1:250,000-scale | SI |
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Quadrangle map, 1:63,360-scale | B-6 |
Latitude | 57.4933 |
Longitude | -135.7159 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | This occurrence is northeast of Slocum Arm at an elevation of about 1,500 feet, about 1.4 miles north-northeast of the outlet of lake 1052. The occurrence is 0.3 mile northwest of the center of sec. 36, T. 50 S., R. 60 E. It is location P-94 of Bittenbender and others (1999) and MAS no. 0021140221 (U.S. Bureau of Land Management, 2002). The location is accurate. |
Geologic descriptionJohnson and Karl (1985) map the rocks in the area as Triassic(?) greenstone and Mesozoic or Paleozoic, siliceous metasedimentary and metavolcanic rocks. The rocks are intruded by a stock of Tertiary(?) granodiorite, and cut by high-angle faults that mainly strike northwest. Bittenbender and others (1999), citing Still and Weir (1981), describe this occurrence as a zone of orange-colored mineralized rock in a gulch along a fault contact between metamorphic rocks and greenstone. Samples of the mineralized material contained up to 12 parts per million (ppm) gold, 7 ppm silver, 3,400 ppm zinc, and 100 ppm molybdenum. The ore minerals are not specified. | |
Geologic map unit | (-135.717698405046, 57.4929454186885) |
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Alteration of deposit | Oxidation of mineralized rock. |
Workings or exploration | Only surface sampling. |
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Indication of production | None |
ReferencesBittenbender, 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]
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Reporters | H.C. Berg (U.S. Geological Survey) |
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Last report date | 10/16/2004 |