APPROCHE MULTICRITERE POUR L’ETUDE DE LA GENESE DES NAPPES D’EAUX SALEES, JEFFARA NORD (S-E TUNISIE)
Journal Title: Larhyss Journal - Year 2016, Vol 28, Issue 28
Abstract
A multi-disciplinary study comprising boreholes, geophysical and geochemical analyses are used to outline a conceptual hydrogeochemical model of northern Jeffara groundwater, largely influenced by tectonic. The study of subsurface data demonstrated that the passage of Saharian stable platform to Atlas domain is marked by fracturation affecting several geological formations near sebkhas. Indeed, contamination of groundwater is probably resulting from rise of deep salt water through tectonic disharmony and saltwater intrusion from the sebkhas by means of fractured carbonate formation. Moreover, the groundwaters quality is characterized by geochemical interactions: cationic exchange and the precipitation/dissolution process of minerals in the aquifer formations.
Authors and Affiliations
BEN ALAYA M. | Laboratoire des Matériaux Utiles, Institut National de Recherche et d’Analyse Physico-Chimique, Pôle Technologique Sidi Thabet, Tunisie, KHOUNI R. | Primoil, Centre urbain Nord, immeuble PROMED BOUILDING, Etage 7 bloc B-1, ZEMNI T. | Université Tunis El Manar, Département de Géologie, Faculté des Sciences de Tunis, 2092 Tunis, Tunisie, KHMERI S. | Université Tunis El Manar, Département de Géologie, Faculté des Sciences de Tunis, 2092 Tunis, Tunisie, ZARGOUNI F. | Université Tunis El Manar, Département de Géologie, Faculté des Sciences de Tunis, 2092 Tunis, Tunisie
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