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Publication Extents

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Uraniferous coal and carbonaceous shale in northeast Parana, Brazil
Donald D. Haynes, Charles T. Pierson
1957, Trace Elements Memorandum 1097
Uraniferous coal has been found in northeast Parana, Brazil, in the Rio Bonito formation of Pennsylvanian age. In the majority of coal samples taken the uranium oxide content ranges from 0.005 to 0.030 percent, but selected screened samples have contained as much as 0.445 percent uranium oxide. The sampled thickness...
Pegmatite geology of the Shelby district, North Carolina
Wallace R. Griffitts
1957, Open-File Report 58-40
The Shelby district is divided into a northwestern and a southeastern province. The rocks in the southeastern province include various units in the Battleground schist formation and the Yorkville granodiorite. Those in the northwestern province include the Carolina gneiss, with its Shelby gneiss member, and the Toluca quartz monzonite. The...