Uranium isotope anomaly in minerals |
| |
| Authors: | I O Essien |
| |
| Institution: | (1) Department of Chemistry and Biochemistry, University of Cross River State, Uyo, Akwa Ibom State, (Nigeria) |
| |
| Abstract: | A series of leaching experiments with HF, HCl, HNO3 were carried out on samples of uranium minerals (uraninite and carnotite samples). Anomalously high234U/238U ratios were observed in some uranium fractions. The observed234U/238U activity ratios varied between the values of 1.019±0.155 and 6.210±0.504 (Ci/Ci), while the bulk carnotite sample had an activity ratio of 1.010±0.005 (Ci/Ci). These results are interpreted as due to alpha-recoil effect and changes in oxidation state of uranium. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
