Semi-detailed exploration of sodium sulfate in the northwest of Khuzestan Province
The sodium sulfate exploration in a inland salt lakes in the Khuzestan Province was done under a contract with Industries and Mines Organization of Khuzestan. White salts are seen in an area that is several square kilometers wide. They occurs in the sand dunes and flats between two Mishdaq and Allahoakbar elevations. There, the underground aquifer(s) has up to 280 g/lit salt content. Somewhere, the water table is just 80 Cm below the earth surface. The salt flakes occur due to capillarity effect and evaporation of water in summer. The main source of salt is the drained water from the Hoorolazim wetland which infiltrates from the Gachsaran Formation.
In this project, the 1:5000 map of the area was prepared. By excavation of low depth boreholes, 40 samples were prepared from surface and subsurface that hace been analyzed. The analysis shows that the deposit has rare element in addition to sodium sulfate and halite. Average grade of sodium sulfate is 3%. Total estimated reserve in the Zone-I of deposit is 200000 tons. Calculated annual product is about 10000 tons during 9 month a year.