Anomalous behaviour of uranium isotopes in backwater sediments of Zuari river
Abstract
The surface leaching of the labile component of uranium has been carried out in estuarine sediments of Zuari River in Goa, India The measurements of alpha activities of sup(238) U, sup(235) U and sup(234) U in the leachates indicated a remarkable anomaly between the activities of sup(238) U and sup(234) U The activity ratios of sup(234) U and sup(238) U in these leachates have been found to be in the range of 1.10 to 1.14 However, the activity ratios of sup(235) U and sup(238) U have been found to be 0.045 which is close to that in natural uranium It has also been observed that the anomaly between sup(238) U and sup(234) U exists only on the surface organic layers of the backwater sediments of the Zuari River
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