caa a22 4500 445815566 CHVBK 20180317145227.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s10040-010-0668-z doi (NATIONALLICENCE)springer-10.1007/s10040-010-0668-z Hydrologic and geologic factors controlling groundwater geochemistry in the Turonian aquifer (southern Tunisia) [Elektronische Daten] [Kamel Abid, Kamel Zouari, Marek Dulinski, Najiba Chkir, Brahim Abidi] Facteurs géologiques et hydrauliques contrôlant la géochimie de nappe dans l'Aquifère turonien (Tunisie du Sud) Water in the fissured limestone and dolomite of the Turonian aquifer of Tunisia has been investigated using geochemical (major ions) and isotopic (δ18O, δ2H, 14C) data. To carry out a characterization of aquifer behaviour, 48 representative samples were collected at the end of the humid season. The evolution of chemical composition of groundwater from recharge areas to discharge areas is characterized by increasing sodium, chloride and sulphate contents as a result of leaching of evaporite rock. In the study, three distinct chemical trends in groundwater were identified. The major reactions responsible for the chemical evolution of groundwater in the investigated area fall into three categories: (1) calcite precipitation, (2) gypsum and halite dissolution, and (3) ion exchange. The stable isotope composition of water samples indicates large-scale interaction between the Continental Intercalaire and the Turonian aquifer and the presence of a young local component which probably enters the system via faults and/or fractures. Springer-Verlag, 2010 Tunisia nationallicence Precipitation nationallicence Dissolution nationallicence Ion exchange nationallicence Mixing process nationallicence Abid Kamel École Nationale d'Ingénieurs de Sfax, BP W 3038, Sfax, Tunisia aut Zouari Kamel École Nationale d'Ingénieurs de Sfax, BP W 3038, Sfax, Tunisia aut Dulinski Marek Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059, Krakow, Poland aut Chkir Najiba École Nationale d'Ingénieurs de Sfax, BP W 3038, Sfax, Tunisia aut Abidi Brahim Arrondissement des Ressources en Eau, Commissariat Régionale au Développement Agricole de Gabès Route de Médenine, 6019, Gabés, Tunisia aut Hydrogeology Journal Springer-Verlag 19/2(2011-03-01), 415-427 1431-2174 19:2<415 2011 19 10040 https://doi.org/10.1007/s10040-010-0668-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10040-010-0668-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Abid Kamel École Nationale d'Ingénieurs de Sfax, BP W 3038, Sfax, Tunisia aut NATIONALLICENCE 700 1- Zouari Kamel École Nationale d'Ingénieurs de Sfax, BP W 3038, Sfax, Tunisia aut NATIONALLICENCE 700 1- Dulinski Marek Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059, Krakow, Poland aut NATIONALLICENCE 700 1- Chkir Najiba École Nationale d'Ingénieurs de Sfax, BP W 3038, Sfax, Tunisia aut NATIONALLICENCE 700 1- Abidi Brahim Arrondissement des Ressources en Eau, Commissariat Régionale au Développement Agricole de Gabès Route de Médenine, 6019, Gabés, Tunisia aut NATIONALLICENCE 773 0- Hydrogeology Journal Springer-Verlag 19/2(2011-03-01), 415-427 1431-2174 19:2<415 2011 19 10040 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer