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随着地质、地球物理等资料的大量获得,"弧后盆地扩张"模式和"地体拼贴"模式也不能合理地解释东海盆地的演化,本文提出了东海盆地演化的一种新模式──"持续拉张-脉动挤压"模式,并探讨了该模式的力源机制,认为东海盆地演化的拉张力源是中国东部地幔软流圈自西向东(或东南)的蠕动流、岩石圈本身的陆壳(厚)到洋壳(薄)的扩张力、岩石圈的局部对流引起的侧向扩张及对岩石圈底部的热侵蚀;挤压力源则是菲律宾海大洋岩石田向西北运动的作用力。
With the extensive acquisition of geological and geophysical data, the “backarc basin expansion” model and “terrane collage” model can not reasonably explain the evolution of the East China Sea basin. This paper presents a new model of the evolution of the East China Sea basin ─ ─ The “continuous stretching-pulsating extrusion” mode and its source mechanism are discussed. It is concluded that the source of tension in the evolution of the East China Sea Basin is the westerly flow of the mantle asthenosphere from the west to the east (or the southeast) of the eastern China, and the lithosphere itself Of the continental shelf (thick) to the oceanic crust (thin), the lateral expansion caused by the local convection of the lithosphere, and the thermal erosion of the bottom of the lithosphere. The source of the crushing force is the northwestern movement of the Philippine Sea ocean rock field Force.