Evolution　of　Circum－Pacific　Basins　andVolcanic　Belts　in　East　China　and　Their　Geodynamic　Background  

作　　者：Li Sitian(Faculty of Earth Resources, China University of Geosciences, Wuhan 430074)Mo Xuanxue(Department of Geology and Mineral Resources, China University of Geosciences, Beijing 100083 )Yang Shigong(Faculty of Earth Resources, China University of Geosc 

出　　处：《Journal of Earth Science》1995年第1期48-58,共11页地球科学学刊（英文版）

摘　　要：Based upon the recent research on the Circum- Pacific geology and sedimentary basins a review of the time - space evolution of Mesozoic and Cenozoic basic and their geodynamic background are outlined. The foreland-type basins originated mainly in Late Triassic during the convergence of East Tethys and the continental collision, while the extensional and transform-extensional basins formed mainly in the Eastern China in Late Mesozoic and Cenozoic. They are closely related to the subduction Process of Pacific Plate from eat and the collision from southwest. As a sighficat indicator of deep Process of the Earth, the igneous rocks and magmatism offer very important information for the basin dynamic analysis. The evolution of the basins in East China were controlled by the combination and alternation effects from the surrounding Plates of Eurasia and the deep Process.Based upon the recent research on the Circum- Pacific geology and sedimentary basins a review of the time - space evolution of Mesozoic and Cenozoic basic and their geodynamic background are outlined. The foreland-type basins originated mainly in Late Triassic during the convergence of East Tethys and the continental collision, while the extensional and transform-extensional basins formed mainly in the Eastern China in Late Mesozoic and Cenozoic. They are closely related to the subduction Process of Pacific Plate from eat and the collision from southwest. As a sighficat indicator of deep Process of the Earth, the igneous rocks and magmatism offer very important information for the basin dynamic analysis. The evolution of the basins in East China were controlled by the combination and alternation effects from the surrounding Plates of Eurasia and the deep Process.

关 键 词：Cirum-Pacific basins MAGMATISM geodynamics. 

分 类 号：P317[天文地球—固体地球物理学]