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Uranium isotopes in groundwater from the “Jeffara coastal aquifer” (southeastern Tunisia) |
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| Authors: | Friha Hadj Ammar Najiba Chkir Kamel Zouari Zohra Azzouz-Berriche |
| Institution: | a Laboratory of Radio-Analysis and Environment, National School of Engineering of Sfax, Route de Soukra BP 1173, 3038 Sfax, Tunisia b Laboratory of Radio-Analysis and Environment, Faculty of Letters and Humanities, Geography Department, Route de ElMatar, BP 1168, 3029 Sfax, Tunisia c National Center of Nuclear Sciences and Technologies (CNSTN) - 2020 Sidi Thabet, Tunisia |
| Abstract: | The distributions of 238U and 234U in groundwater from the “Jeffara aquifer” were studied by using alpha spectrometric methods. The concentration ranges of 238U and 234U/238U activity ratios were 1.34 ± 0.17 to 3.43 ± 0.38 ppb, and 1.43 ± 0.23 to 1.82 ± 0.27 respectively. Variations in concentrations can be related not only to lithostratigraphic formations but also to different origins of groundwater. U content of Jeffara are found very similar to those of Continental Intercalaire aquifer in both El Hamma and Chenchou regions, indicating that the Continental Intercalaire is the dominant source of the groundwater. |
| Keywords: | Uranium Activity ratios Mixing process Jeffara aquifer |
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