|Ore minerals||chalcopyrite; pyrite|
|Quadrangle map, 1:250,000-scale||MC|
|Quadrangle map, 1:63,360-scale||D-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is on the south side of a small, unnamed east tributary to Beaver Creek. It is at an elevation of about 3,700 feet about 2,000 feet west of the center of section 6, T. 2 N., and R. 24 E. of the Copper River Meridian. This is locality 188 of MacKevett (1976).|
Geologic descriptionThe deposit at this prospect consists of pyrite and minor chalcopyrite in veins and as disseminations in granodiorite and in adjacent hornfels roof pendants (Moffit and Knopf, 1910; MacKevett, 1976). The prospect is on the south side of a prominent shear zone that trends east-west along an unnamed tributary to Beaver Creek (Knaebel, 1970). Bedrock in the area is Jurassic or Cretaceous siliciclastic rocks intruded by Cretaceous granitic rocks (MacKevett, 1978).
|Geologic map unit||(-141.090021340207, 61.9821718228074)|
|Age of mineralization||Cretaceous? The mineralization appears to be related to the emplacement of Cretaceous granitic rocks.|
|Alteration of deposit||Oxidation. Rusty exposures mark the mineralization (Knaebel, 1970).|
|Workings or exploration||Probably some minor workings.|
|Indication of production||None|
Additional commentsThe locality is in the Wrangell-Saint Elias National Park and Preserve.
Knaebel, Jeff, 1970, Geochemical survey and geological reconnaissance of the White River area, south-central Alaska: Alaska Division of Mines and Geology Geochemical Report 21, 60 p., 4 sheets, scale 1:63,360.
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|