|Quadrangle map, 1:250,000-scale||MD|
|Quadrangle map, 1:63,360-scale||D-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Occurence is located in Sischu Creek valley at an approximate elevation of 1,000 feet (304 m) in Section 35, T. 17 S., R. 29 E., of the Kateel River Meridian. Location is imprecise and only known to within a one mile (1.6 km) radius.|
Geologic descriptionQuartz-rhyolite porphyry was found to contain anomalous thorium and uranium. Ore minerals were not identified (Miller and others, 1980; Clautice and others, 1993). Mineralization is inferred to be Early Tertiary, based on isotopic ages from Sischu Volcanic Field (Moll and others, 1980). Miller and others (1980) report up to 16.5 ppm uranium, and 70.4 ppm thorium from grab samples.
|Geologic map unit||(-153.152369358002, 63.9794354548692)|
|Mineral deposit model||Volcanogenic uranium (Cox and Singer, 1986; model 25f).|
|Mineral deposit model number||25f|
|Age of mineralization||Inferred to be Early Tertiary, based on isotopic ages from Sischu Volcanic Field (Moll and others, 1980).|
|Workings or exploration||Miller and others (1980) report up to 16.5 ppm U, and 70.4 ppm Th from grab samples.|
|Indication of production||None|
Clautice, K.H., Bowman, N.D., Clough, J.G., Gilbert, W.G., Kline, J.T., Smith, T.E., and Blodgett, R.B., 1993, Land selection unit 8 (Kantishna River, Ruby, and Medfra quadrangles): References, lead isotope, geochemical and major oxide data: Alaska Division of Geological & Geophysical Surveys Public Data File 93-8, 46 p., 1 sheet, scale 1:250,000.
|Reporters||Bundtzen, T.K. (Pacific Rim Geological Consulting)|
|Last report date||6/7/1998|