Browsing by Author "ATTIA ASMA"

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    Contribution à l'études hydrogéologique et hydrochimique des eaux souterraines des aquifères de Khenchela : cas de Tamza
    (Université Abbes Laghrour -Khenchela-, 2016) ATTIA ASMA
    Abstract : Given the geographical position and climatic conditions in Tamza and in order to face insufficiency and pollution in surface and ground water The area Is home to a shallow aquifer located in the alluvial deposits of the Mio-Pliocene-Quaternary due to intensive erosion processes that causes tearing of surface formations on the steep slopes. This tablecloth which has for substratum clays and gypsies of the Miocene, Is surrounded by limestones of the Cretaceous. The Hydroclimatological study shows that The zone of study Is characterized by a semi-arid climate, which translates unfavorabletraffic conditions and Flowage, particularly a strong evaporation. The evolution of the chemical elements in function of time, highlights that stronger concentrations of sulfate and calcium are related in evaporitics or salt formations as the gypsum and brings up forcesthe chemical forces calcium chloride and calcium and magnesium sulphate The analysis of the origin of the elements showed that the main geochemical phenomena involved in the acquisition of the salt load are bound to the interaction water-rock (dissolution of carbonated minerals and évaporitiques), in the cationic exchange and in the concentration along the flow.