|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||Occurrence is situated on a broad east-west ridge at an elevation of 1,700 feet (518 m) in Section 6, T. 18 S., R. 30 E., of the Kateel River Meridian. The location is based on descriptions from Clautice and others (1993).|
Geologic descriptionMiller and others (1980) reported anomalous thorium and uranium values from the Sischu Volcanics. Clautice and others (1993) report large sanadine crystals in felsic altered volcanic units in this area. The age of the mineral occurrence is inferred to be Early Tertiary, based on isotopic ages of Sischu Volcanics (Moll and others, 1981). Four grab samples collected by Miller and others (1980) contained from 28.0 to 70.3 ppm uranium and from 108 to 127 ppm thorium.
|Geologic map unit||(-153.074364845864, 63.9564369365564)|
|Mineral deposit model||Volcanogenic uranium (Cox and Singer, 1986; model 25f).|
|Mineral deposit model number||25f|
|Age of mineralization||Early Tertiary based isotopic ages from Sischu Volcanics (Moll and others, 1981).|
|Workings or exploration||Four grab samples collected by Miller and others (1980) contained from 28.0 to 70.3 ppm uranium and from 108 to 127 ppm thorium.|
|Indication of production||None|
Additional commentsSee MD001 and MD002.
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|