Writers : Dolat, Elahe; Shahriari, Sohrab; Pourkermani, Mohsen; Ghaemi, Farzin; Navabpour, Peiman
Refference : Proceeding of the first applied geological congress of Iran(volume.2)
Publishing Year : 1386

Abstract :
Aghdaeband klippe consists folded sedimentary rocks which has been formed before Jurassic in NE Iran.This region is the only place in Iran were Kopeh Dagh's basement outcrop can be seen.In order to understand a part of tectonic history and the orientation of deforming stress field,brittle structures were collected and analyzed by Right Dihedra method. The results show that before Jurassic in Aghdarband area have dominated a E-W compressional regime that could be simultanous with Early Kimmerian phase.Also,after Triassic have been a NW-SE extentional regime that formed Kopeh Dagh basin.Althought there is some evidence of compression along the same axes during the Late Kimmerian phase(Late Jurassic-Early Cretaceous),it seem that the Cretaceous layers were folded by a NE-SW compression during the Paleogene.Afterward,the compresion stress field has re-oriented to N-S direction and generated the present day strike-slip system following the Miocene.
Subject List : active tectonic