Mesozoic collision-extrusion tectonics in Eastern Asia

Japanese WESTPAC Symposium. June 6-7, 1989. Ocean Research Institute, University of Tokyo. 西太平洋におけるマイクロプレートテクトニクスと古環境地図に関する研究会. 1989年6月6日-7日. 東京大学海洋研究所.The eastern part of the Asian continent was intensively deformed in the early Cretaceous time. Deformation has been interpreted to be related to subduction tectonics along the eastern continental margin. We propose an alternative tectonic framwork of collision-extrusion tectonics resulting from collision of the Indosinian block with the Eurasian continent. This event controlled the Jurassic to Cretaceous tectonic history in eastern Asia and evolution of the subduction zone along the eastern margin of the continent