Hydrogeological assessment of Aghajari Formation springs in Masjed Soleyman and Lali area, north-east of Khuzestan Province

The study area with considerable sandstone outcrop is located north-east of Khuzestan province. The aim of this study was to investigate hydrogeological status to find out factors affecting the springs discharge rate. To reach the goal, the stratigraghy, lithology and structural assessments were undertaken in the area, and also water sample collection was carried out. The results indicated that there is a positive correlation between springs occurrence and fracture density. The data also revealed that in areas where sandstone thickness is remarkable and fractures well developed, aquifer reservoir as well as spring discharge is promising. The hydrochemical data showed that water quality is controlled by stratigraphy. Correlation between sulfate and calcium ions (R=%90) proves that gypsum and anhydrite dissolution process, caused sulfate water type in the study area.