Hydrochemistry of an Albian sandstone aquifer in a semi arid region,Ain oussera,Algeria |
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| Authors: | Ammar Maoui N Kherici F Derradji |
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| Institution: | (1) Geology Laboratory, University of Annaba, BP 12 Sidi Amar, Annaba, 23000, Algeria;(2) BP 3093, Ain Chih Djelfa, 17000, Algeria |
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| Abstract: | The studied area is in the south of Algeria. Chemical data are used to determine the status of water quality in the Albian
sandstone aquifer of Ain oussera, as well as to clarify the hydrological regime in the study area, to identify spatial and
temporal variations of water quality and sources of contamination (natural and anthropogenic). Waters in sandstone are dominated
by a magnesium chloride type and sodium chloride type. Interpretation of chemical data with thermodynamic calculation suggests
that the chemical evolution of groundwater is primarily controlled by water–rock interactions. Piezometric map suggests that
water is moving from the south toward north. The agricultural irrigation effluent and domestic effluents have largely contributed
to contamination of groundwater. |
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