Magmatic evidence for the Arabian plate and Biston-Avoraman block (west Iran) collision during the late Cretaceous: Sr-Nd isotopes and U-Pb ages from the acidic rocks in the Harsin area

抄録

The Zagros fault is suture zone of the Arabian and Iran plates which collided in the late Miocene. In the suture zone, two parallel ophiolite belts situated between the Biston-Avoraman block (BAB) and Arabian plate in the west and Sanandaj Sirjan zone (SSZ) in the east, and suggest the possibility for multistage collision. Our target in this presentation is to report the age of high Na acidic rocks in the Harsin area in the west of Iran.