The study area is located northeastern of Lordegan with coordinates of 50 52 30 to 51 13 30 eastern longitude and 30 43 00 to 31 30 00 northern latitude.
During assessment of Permo-Triassic units of Darreh Yas for production of aluminum sulfate from Nilchian Mine, it was understood that there is no bauxite or argillite concentration in the area and Dalan and Khaneh Kat Formations include no alumino-silicate potential.
Zagun Formation also didnít involved clay minerals and low calcite. But shale and marl layers of Gurpi Formation in Dorahan, could be utilized for cement production. Lab experiments show that aluminum sulfate production from Nilchina bauxite should be testified by pilot plant.