Title : The Hydrochemistry, powerful tool to assess the water-rock relationship, case of the alluvial water table of Tebessa (North-East Algeria)
In order to assess the feature of superficial water salinity in the North-East region of Algeria, two methods (principal component analysis and analysis by rare element, Sr2+) have been used. The first one shows that, in the region, the waters are under-saturated with respect to gypsum and anhydrite and underlines the distribution of mineral concentration in Tebessa country as, bicarbonates, sulfates and chlorides. We equally identify pollution by nitrates. The second method indicates evaporitic influence on water mineralization.