Comparison of the isotopic abundance of U235 and U238 and the radium activity ratios in Colorado Plateau uranium ores

The isotopic abundances of uranium and the radium activity ratios of 11 samples of uranium ore from mines on the Colorado Plateau have been measured. No significant variation in the isotopic abundance of the uranium was noted; within the experimental error, the average U238/U235 ratio is 137.7. Ther...

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Main Authors: Senftle, F. E.; Stieff, L. R. (Lorin Rollins), 1920-; Cuttitta, Frank, 1912-1974; Kuroda, P. K. (Paul K.), 1917-, Geological Survey (U.S.)
Format: Text
Language: English
eng
Published: 1956
Subjects:
Online Access: http://hdl.handle.net/11166/83666
http://archives.mountainscholar.org/cdm/ref/collection/p17393coll30/id/3350