evaluation of hydrogeochemical processes of alluvial aquifer of the Golgir plain
Subject Areas :hadi tahmasbi nezhad 1 , abdoreza kaboli 2
1 - عضو هیئت علمی دانشگاه آزاد اسلامی واحد بهبهان
2 - کارشناس ارشد آب منطقه ای استان گلستان
Keywords: Golgir, Hydro geochemistry, saturated indexes and Mixture curve,
Abstract :
In order to evaluation of processes are effective on mixture groundwater of Golgir plain,saturated indexes and mixture curves is calculated and drown for dry period (Shahrivar1385) andwet period (Isfand1385). Considering development of Sulfate and Limestone formations around theGolgir plain, values of saturated indexes of sulfate minerals calculated with PHREEQC computercode in the boundary of the Golgir aquifer. The result shows that they are sub saturated in the mostof samples and different seasons. This means these minerals are solutable in the water. In wetperiod saturated index of the most of samples is decreased because of increasing groundwaterrecharge caused from rainfall. As in sampling of dry period, the most of samples were in conditionsaturated to supersaturate from Calcite and Dolomite. On the base of the Mg/ (Mg + Ca) curveagainst to So4/ (So4+HCo3) curve is determined the water samples of Golgir deep drink wells are inCalcite solution domain but Cement factory wells is placed in south of the Golgir plain, is tend todolomite solution domain. Based on the result of mixture curves, Sulfate and Carbonate mineralssolution processes is the main factor controls chemical mixture of water. Type of sedimentation andgeology formations of region is the most important effective factor on chemical mixtured of water.