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  3. Alaska Resource Data File (ARDF)

Unnamed (Copper Creek)

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Cu
Ore minerals malachite
Gangue minerals dolomite

Geographic location

Quadrangle map, 1:250,000-scale BN
Quadrangle map, 1:63,360-scale A-1
Latitude 65.18
Longitude -162.2
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is approximately located, possibly within two miles. According to the original description (Sainsbury, 1975, p. 92-93), malachite in dolomite occurs in the headwaters of Copper Creek. Copper Creek is an east-flowing drainage with headwaters on the ridge east of Camp Haven (Death Valley). The location used here differs from that of Gamble (1988; locality 39).

Geologic setting

Geologic description

Sainsbury (1975, p. 92-93) very briefly describes this occurrence as schistose limestone, almost completely converted to dolomite, that carries visible malachite. The geologic map of the area (Till and others, 1986) shows Paleozoic marble on both sides of upper Copper Creek.
Geologic map unit (-162.20262581486, 65.1793029438282)
Mineral deposit model Malachite in marble
Age of mineralization Not known
Alteration of deposit Dolomitization.

Production and reserves

Workings or exploration There are no known workings or exploration activities in this area.
Indication of production None

References

MRDS Number 10307288

References

Gamble, B.M., 1988, Non-placer mineral occurrences in the Solomon, Bendeleben, and southern part of the Kotzebue quadrangles, western Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1838-B, 13 p., 1 sheet, scale 1:250,000.
Sainsbury, C.L., 1975, Geology, ore deposits, and mineral potential of the Seward Peninsula, Alaska: U.S. Bureau of Mines Open-File Report 73-75, 108 p., 3 sheets, scale 1:250,000.
Till, A.B., Dumoulin, J.A., Gamble, B. ., Kaufman, D.S., and Carroll, P.I., 1986, Preliminary geologic map and fossil data, Soloman, Bendeleben, and southern Kotzebue quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 86-276, 10 p., 3 plates, scale 1:250,000.
Reporters Travis L. Hudson (Applied Geology)
Last report date 3/15/1999