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标题：Origin of the mineralization in the Plio-quaternary eastern coastal aquifer of cap Bon (Tunisia)
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作者：Mohamed Fethi Ben Hamouda ; Christian Leduc ; Jamila Tarhouni 等
期刊名称：Science et changements planétaires / Sécheresse
印刷版ISSN：1147-7806
电子版ISSN：1777-5922
出版年度：2009
卷号：20
期号：1
页码：78-86
DOI：10.1684/sec.2009.0161
出版社：John Libbey Eurotext
摘要：Figures See all figures Authors Mohamed Fethi Ben Hamouda , Christian Leduc , Jamila Tarhouni , Kamel Zouari Unité d’hydrologie et de géochimie isotopique CNSTN Pôle technologique de Sidi-Thabet 2020 Tunisie, Institut de recherche pour le développement UMR G-EAU MSE BP 64501 34394 Montpellier France, Institut national agronomique de Tunisie 43, avenue Charles-Nicolle 1082 Tunis Tunisie, Laboratoire de radioanalyse et d’environnement ENIS BP W 3038 Sfax Tunisie Key words: coastal aquifer, geochemistry, hydrodynamics, isotopes, Tunisia DOI : 10.1684/sec.2009.0161 Page(s) : 78-86 Published in: 2009 In the Plio-quaternary aquifer of the eastern coast of cap Bon (Tunisia), the groundwater quality is deteriorating. Different methods using geochemistry (ions Na ⁺, Cl ⁻, Ca ²⁺, Mg ²⁺, Br ⁻) and isotopes ( ¹⁸O, ²H) are compared with the hydrodynamic information to identify the main processes involved in the increase in mineralization. Along the coast, seawater intrusion resulting from groundwater overexploitation has been identified but is not the only cause of the qualitative degradation: the irrigation development that induces soil leaching and fertilizer transfer to groundwater over the entire extent of the aquifer is another major reason for the increase in mineralization.
关键词：coastal aquifer; geochemistry; hydrodynamics; isotopes; Tunisia