Almabolagh region is located in northwestern part of the Sanandaj-Sirjan zone of Zagros orogen in western Iran. Three rock units consisting of volcani-sediments (Almabolagh sequence) at the lower part, carbonate (Chenarsheikh sequence) in the middle, and slate (Hamadan slate) at the upper part are identified. These rocks that are metamorphosed at green schist facies have been exposed in a dome structure. Three stages of Ductile deformation (D1, D2, D3) are identified in the tectonites. The mechanism of D2 folding in this stage is flexural shearing and before this folding homogenuse deformation deformed rocks by layer parallel shortening.
