|Quadrangle map, 1:250,000-scale||SD|
|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 peak 5010, which is about 7.7 miles north-northeast of the east end of Glory Lake. It is about 0.3 mile north of the center of section 19, T. 51 S., R. 79 E.|
Geologic descriptionThis occurrence consists of biotite-quartz gneiss with disseminated pyrite and chalcopyrite (Clark and others, 1970 [OF 70-74]). The gneiss is part of the Coast Plutonic complex of Tertiary or Cretaceous age (Gehrels and Berg, 1992) . A sample contained 70 ppm copper.
|Geologic map unit||(-132.805202270199, 57.4363658893926)|
|Mineral deposit model||Disseminated pyrite and chalcopyrite in gneiss.|
|Age of mineralization||Sulfides disseminated in gneiss of probably Tertiary or Cretaceous (metamorphic) age; the age of the protolith is unknown.|
|Workings or exploration||Only sampling by government geologists.|
|Indication of production||None|
Clark, A.L., Brew, D.A., Grybeck, D.J., and Wehr, Raymond, 1970, Analyses of rock and stream-sediment samples from the Sumdum B-4 quadrangle, Alaska: U.S. Geological Survey Open-File Report 70-74, 104 p., 1 sheet, scale 1:63,360.
|Reporters||Donald Grybeck (U.S. Geological Survey)|
|Last report date||10/8/2004|