|Quadrangle map, 1:250,000-scale||MC|
|Quadrangle map, 1:63,360-scale||C-2|
|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 descriptionThis 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.|
|Workings or exploration||Only limited surface sampling.|
|Indication of production||None|
Additional commentsThe locality is in the Wrangell-Saint Elias National Park and Preserve.
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|