|Quadrangle map, 1:250,000-scale||MC|
|Quadrangle map, 1:63,360-scale||B-6|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is on a ridge on the east side of Fireweed Mountain. It is at an elevation of about 5,050 feet, 4,500 feet northwest of elevation 4945 and 2,600 feet south of the center of section 2, T. 5 S., R. 13 E. of the Copper River Meridian. This is locality 78 of MacKevett (1976); the location is accurate to within about 1,000 feet.|
Geologic descriptionThis occurrence consists of a 6-inch-wide altered quartz(?) vein that cuts Tertiary granodiorite (MacKevett, 1976, 1978). A sample of the vein contained 1.5 parts per million (ppm) silver and 2,000 ppm copper.
|Geologic map unit||(-143.02927333816, 61.4571586003854)|
|Mineral deposit model||Vein|
|Age of mineralization||Tertiary based on the age of the granodiorite host rock.|
|Alteration of deposit||Oxidation?|
|Workings or exploration||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|