|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 north of upper Eagle Creek. It is at an elevation of about 7,000 feet, 2,500 feet west-southwest of elevation 7415 near the southeast corner of section 15, T. 6 S., R. 17 E. of the Copper River Meridian. This is locality 50 of MacKevett (1976); the location is accurate to within a few hundred feet.|
Geologic descriptionThis occurrence consists of a series of stibnite-bearing quartz-calcite veins up to 25 centimeters thick that cut Triassic Nizina Limestone (MacKevett and Smith, 1972; MacKevett, 1976). Samples from this occurrence contain up to 1.2 parts per million (ppm) gold, 700 ppm arsenic, more than 10,000 ppm antimony, and 7,000 ppm tungsten (MacKevett and Smith, 1968, samples 62, 63, 65, and 66). The host rocks are Triassic limestone but other gold-bearing veins in the area (such as MC173) are Tertiary.
|Geologic map unit||(-142.333443556842, 61.3411768727396)|
|Mineral deposit model||Vein|
|Age of mineralization||Tertiary? The host rocks are Triassic but other gold-bearing veins in the area (such as MC173) are Tertiary.|
|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.
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|