摘要: Recently, several workers, reported radioactive disequilibrium in nature between U234 and its parent U238. This anomaly may be used as a geochemical tool the study of behavior U rocks, soils, natural waters. Samples unraninite Mississippian limestone which was expected to equilibrium with U238 were analyzed. Preliminary values for oceans are given. Several samples from Eniwetok Lake Bonneville
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