Deformation path partitioning within the transpressional Khoy shear zone, Zagros orogen, NW Iran
Hassan Haji Hosseinlou1*, Ali Solgi1, Mohammad Mohajjel2, Mohsen Pourkermani1
1 Department of Geology, Science and Research Branch, Islamic Azad University, Tehran, Iran
2 Department of Geology, Tarbiat Modares University, Tehran, Iran
Abstract: Metamorphic-ophiolitic complex and various intrusive rocks in the Khoy area are located in a transpressed active continental margin. These complexes in the Zagros orogen were deformed during an oblique convergence scenario between the Arabian and West Alborz- Azerbaydjan blocks in NW Iran. The Khoy area contains both NW-SE striking dextral strike-slip and SW verging NE dipping ductile reverse shear fabrics. Ductile shear fabrics are overprinted by subsequent younger thrust and strike-slip fault systems. Abundant syn-tectonic granitoides were intruded in the Khoy area during convergent. Shear deformation fabrics are well identified in both deformed intrusive and metamorphic-ophiolite complex. The geometry and kinematics of shear fabrics indicate a deformation partitioning in both ductile and brittle conditions during a progressive transpression tectonic regime. [Hassan H.H, Ali S, Mohammad M, Mohsen P.K.Deformation path partitioning within the transpressional Khoy shear zone, Zagros orogen, NW Iran. Life Sci J2013;10(4s):255-265] (ISSN: 1097-8135). http://www.lifesciencesite.com. 38
Keywords: Deformation partitioning, Khoy, Metamorphic-ophiolitic, NW Iran, Shear zone.