Zimovia Occurrence, Petersburg District, Wrangell-Petersburg Borough, Alaska, USA
An unknown number of lode claims were staked, apparently for unspecified radioactive minerals, in 1956 (U.S. Bureau of Mines, 1979).
Location: The approximate location of the Zimovia occurrence, known in 1981 (Elliott and Koch, 1981, p. 7, loc. 8) only from a U.S. Bureau of Mines claims map (U.S. Bureau of Mines, 1979), is at sealevel on the north shore of upper Bradfield Canal, in Section 25. It is about 2 miles due east of the mouth of Harding River. The location is probably accurate to within about a quarter of a mile.
Geology: The country rocks in the general area of this unverified mineral occurrence are migmatite, orthogneiss, and subordinate paragneiss of Mesozoic or Paleozoic age (Koch, 1996, 1997). No other geological information about this occurrence was publicly available in 1997 (Koch, 1997).
Commodities (Major) - Radioactive(?) minerals
Development Status: None
ReferencesElliott, R.L., and Koch, R.D., 1981, Mines, prospects, and selected metalliferous mineral occurrences in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-728-B, 23 p., 1 sheet, scales 1:250,000 and 1:63,360. Koch, R.D., 1996 [In press), Reconnaissance geologic map of the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report, 1 sheet, scale 1:250,000. Koch, R.D., 1997 [in press], Metalliferous mineral resource potential in the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report, 1 sheet, scale 1:250,000. U.S. Bureau of Mines, 1979, Claim map 118: Mines and prospects of the Bradfield Canal quadrangle, Alaska: U.S. Bureau of Mines Open-File Report 20-73, 1 sheet, scale 1:250,000.
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