The influence of the lithology and depth on water recharge of wells in two Moroccan Atlantic coastal regions by using solid state nuclear track detectors and radon as a natural tracer |
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Authors: | M A Misdaq S Berrazzouk F Benkirane A Elhebil |
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Institution: | (1) Faculty of Sciences Semlalia, University Cadi Ayyad Nuclear Physics and Techniques Laboratory, BP. 2390, Marrakech, Morocco;(2) Hidraulic Region of Tensift, Marrakech, Morocco |
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Abstract: | Uranium and thorium contents as well as radon and thoron -activity concentrations were evaluated inside different underground water samples by using a method based on calculating the CR-39 and LR-115 type II solid state nuclear track detectors (SSNTDs) detection efficiencies for the emitted -particles and measuring the resulting track density rates. The validity of the SSNTD technique utilized was checked by analysing uranium nitrate standard solutions. A relationship between water radon concentration and recharge of wells dug in two Moroccan Atlantic coastal regions, for a given lithology, was found. The influence of the lithology and depth on radon concentration and salinity of well waters studied was investigated. |
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