Unnamed Occurrences (ARDF - KC175), Kwain Bay, Annette Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
Location: This site represents three occurrences west and northwest of innermost Kwain Bay. The occurrences are at elevations of 100-300 feet and are distributed along a 0.2-mile-long, northwest-trending, line extending from 0.1 mile west of the marshy flat at the head of the bay. The occurrences are in section 22, T. 78 S., R. 93 E., of the Copper River Meridian. The map site is at the approximate midpoint of this line of occurrences. The site corresponds to loc. 36 in Karl (1992). The location is accurate within 0.1 mile.
Geology: The country rocks at this site are recrystallized, locally semischistose, rhyolite, that is conformably overlain by massive dolomitic limestone (Berg, 1972 [I 684]). These Upper Triassic strata were regionally metamorphosed to greenschist grade in Late Cretaceous time. The occurrences, found by private exploration in the 1970s, reportedly consist of sulfide minerals at or near the rhyolite-carbonate contact. One soil(?) sample near this contact reportedly contained detectable gold (Karl, 1992, loc. 36a-c).
Workings: The occurrences were found by private exploration in the 1970s. One soil(?) sample near this contact reportedly contained detectable gold (Karl, 1992, loc. 36a-c).
Commodities (Major) - Ag, Au, Pb, Zn
Development Status: None
No entries listed.
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Berg, H.C., 1972, Geologic map of Annette Island, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-684, 8 p., 1 sheet, scale 1:63,360. Karl, S.M., 1992, Map and table of mineral deposits on Annette Island, Alaska: U.S. Geological Survey Open-File Report 92-690, 57 p., 1 map, scale 1:63,360.
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Locality Updated: Lysebo, Farris, Hedrum, Larvik, Vestfold, NorwayFrom Knut Edvard Larsen, 7th Dec 2013 14:41:25