论文部分内容阅读
亚洲东部与东南部边缘海沟-岛弧-弧后盆地系统是以大陆型地壳向大洋型地壳转化为主要趋势的一类过渡型地壳区。这一转化过程是由于大陆岩石圈向大洋岩石圈的仰冲及蠕散运动完成的。大洋岩石圈向大陆岩石圈下面的俯冲晚于大陆向大洋的仰冲,这种俯冲对沟弧盆系的最后定型起辅助作用。日本岛弧的滚卷是大陆岩石圈仰冲的一种特殊形式。
The trench-island arc-backarc basin system along the eastern and southeastern margins of Asia is a type of transitional crust zone characterized by the conversion of continental-type crust to oceanic crust. This conversion process is due to the continental lithosphere to the oceanic lithospheric Yang Chong and creeping movement completed. The subduction of the oceanic lithosphere below the continental lithosphere is later than that of the oceanic overtopping of the mainland. This subduction plays an auxiliary role in the final setting of the ditch-arc basin system. Japanese island arc roll is a special form of mainland lithospheric Yang Chong.