Tectonic control on the appearance of karst springs in Kooh-e-Siah (Dehdasht, Siuthwest Iran)

Kooh e Siah Karst System, situated in Zagros belt is developed in deformed limestone layers of Cretaceous and Oligocene age. The faults and joints have been of important role for the development and the evolution of the karst system. These joints are controlling the principal direction of the karst galleries and the draining of the ground waters. The ground water flow is discharged by several relatively big karst springs (Koorsa, Pirzal, Moger, etc). The purpose of this research to evaluate the role of tectonic control on hydrogeologic al characteristi cs of karstic aquifers in Kooh -e-Siah anticline. The volumes of dynamic resources of karstic springs are calculated in order to illustrate the basic relationship between Tectonics phenomena and karstic aquifers hydrogeology.