Unnamed (on lower Sheep Creek) (ARDF #MC103) Mo

Unnamed (on lower Sheep Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities	Mo
Ore minerals	molybdenite

Geographic location

Quadrangle map, 1:250,000-scale	MC
Quadrangle map, 1:63,360-scale	C-2
Latitude	61.7026
Longitude	-141.6507
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	This occurrence is on the east side of lower Sheep Creek, a south tributary to the White River. The occurrence is at an elevation of about 4,000 feet in the SW1/4 of section 8, T. 2 S., R. 21 E. of the Copper River Meridian. This is locality 150 of MacKevett (1976); the location is accurate to within 1,000 feet.

Geologic setting

Geologic description This occurrence consists of altered zones in Cretaceous granodiorite (MacKevett, 1976, 1978). A sample of the altered rock contained 50 parts per million molybdenum.
Geologic map unit	(-141.652797076842, 61.7022301842296)
Mineral deposit model	Porphyry Mo, low F? (Cox and Singer, 1986; model 21b)
Mineral deposit model number	21b?
Age of mineralization	Cretaceous 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. MacKevett, E.M., Jr., 1978, Geologic map of the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-1032, 1 sheet, scale l:250,000.
Reporters	Travis L. Hudson (Applied Geology, Inc.)
Last report date	1/12/2003