Unnamed (at head of Gold Run Creek) (ARDF #SO150) Cu

Unnamed (at head of Gold Run Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities	Cu
Ore minerals	malachite; pyrite
Gangue minerals	quartz

Geographic location

Quadrangle map, 1:250,000-scale	SO
Quadrangle map, 1:63,360-scale	D-5
Latitude	64.874
Longitude	-164.045
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	This occurrence is located on the ridge crest at the head of Gold Run Creek, an east tributary to Big Four Creek, at an elevation of about 1,325 feet. This is locality 93 of Gamble (1988).

Geologic setting

Geologic description Silicified marble with malachite and pyrite contains 2,000 ppm Cu and 200 ppm As (Gamble, 1988). Bedrock in this area is mostly part of a pelitic schist assemblage of possible Cambrian or Precambrian age (Till and others, 1986).
Geologic map unit	(-164.047617335668, 64.8732640696287)
Mineral deposit model	Malachite and pyrite in silicified marble.

Production and reserves

Workings or exploration	Exploration activities are not reported for this occurrence.
Indication of production	None

References

MRDS Number	10308299
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. 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	8/19/1999