Paleomagnetic Results from Western Anatolia: Evidence of Microblock Rotations after Emplacement of the Lower Miocene Yuntdağ Volcanic Rocks

The eastern Aegean region has undergone north dipping subduction in the Oligocene, continental collision and then Miocene-Pliocene extension, which is associated with widespread Miocene volcanism. aim of this study to assess possibility block rotations due stress variations Dikili (İzmir) province, Western Anatolia, based on paleomagnetic data obtained from 35 independent sites addition results 19 earlier studies. lower Yuntdağ volcanic rocks were emplaced three different structural blocks, Dikili, Zeytindağ Bergama blocks. Clockwise rotation found blocks that varies R (± DR) = 12.5° 7.4°) west 35.6°± (13.2°) east, respectively. In contrast, a counterclockwise =-38.1° 6.4°) resulted block, A scissor-like basin evolution suggested during opening Bakırçay graben led clockwise after present. pattern derived demonstrates localized small scale deformation besides regional affects must be considered as part matrix area.