|Quadrangle map, 1:250,000-scale||MC|
|Quadrangle map, 1:63,360-scale||B-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is on the ridge crest between Radovan Gulch and the headwater glacier feeding Dan Creek. It is at an elevation of about 7,800 feet, 5,500 feet south of elevation 7850 and 2,500 feet northeast of elevation 7902. The occurrence is about in the center of the west boundary of section 33, T. 5 S., R. 17 E. of the Copper River Meridian. This is locality 64 of MacKevett (1976); the location is accurate to within a few hundred feet.|
Geologic descriptionThis occurrence consists of a 10-foot wide altered fault zone that cuts Upper Triassic to Lower Jurassic(?) siliciclastic rocks of the McCarthy Formation (MacKevett, 1970 [B 1333]; MacKevett and Smith, 1972; MacKevett, 1976). A sample from the fault zone contained 1,000 parts per million (ppm) arsenic and 0.2 ppm gold (MacKevett and Smith, 1968). This is the same fault that localizes mineralization at the Radovan Low Contact prospect (MC160), 0.9 mile to the northeast.
|Geologic map unit||(-142.389152264453, 61.3914762619734)|
|Age of mineralization||Jurassic or younger based on the age of the host rock, the McCarthy Formation.|
|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., 1970, Geology of the McCarthy B-4 quadrangle: U.S. Geological Survey Bulletin 1333, 31 p.
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.
MacKevett, E.M., Jr., and Smith, J.G., 1968, Distribution of gold, copper, and some other metals in the McCarthy B-4 and B-5 quadrangles, Alaska: U.S. Geological Survey Circular 604, 25 p.
|Reporters||Travis L. Hudson (Applied Geology, Inc.)|
|Last report date||1/12/2003|