Unnamed (east of Mount Sulzer) (ARDF #MC108) Ag, Au, Cu

Unnamed (east of Mount Sulzer)

Occurrence, Inactive

Commodities and mineralogy

Main commodities	Ag; Au; Cu
Ore minerals	chalcopyrite; gold

Geographic location

Quadrangle map, 1:250,000-scale	MC
Quadrangle map, 1:63,360-scale	C-2
Latitude	61.6207
Longitude	-141.542
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	This occurrence is on the north valley wall at the west head of Giffin Glacier, about 2.2 miles east of Mount Sulzer. The site is at an elevation of about 7,400 feet, 1,500 feet east of the center of section 11, T. 3 S., R. 21 E. of the Copper River Meridian. This is locality 111A of MacKevett (1976); the location is accurate to within about 1,000 feet.

Geologic setting

Geologic description This occurrence consists of copper-bearing veinlets and disseminations in volcaniclastic rocks of the upper Paleozoic Station Creek Formation (MacKevett, 1976). A sample of the mineralized rock contained 15 parts per million (ppm) silver, 0.9 ppm gold, and 10,000 ppm copper.
Geologic map unit	(-141.544076881896, 61.6203310296578)
Mineral deposit model	Kuroko massive sulfide? (Cox and Singer, 1986; model 28a)
Mineral deposit model number	28a?
Age of mineralization	Late Paleozoic or younger based on the age of the host rocks.

Production and reserves

Workings or exploration	Only limited surface sampling.
Indication of production	None
Additional comments The locality is in the Wrangell-Saint Elias National Park and Preserve.

References

References MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, 2 sheets, scale 1:250,000.
Reporters	Travis L. Hudson (Applied Geology, Inc.)
Last report date	1/12/2003