摘要
亚洲与其相关大陆之间先后受两条弧形扩张系统活动的驱动而引起的离合过程，决定着亚洲中、新生代海陆地壳的演化。海、陆岩石圈的相对运动同亚洲大陆多条裂谷系的形成和演化具有密切关系。这些裂谷之间的地区分别构成各具特点的地球动力学区域。
Asia is surrounded by two curve spreading systems that were differently taking shape in the Meso-Cenozoic. The Mesozoic spreading system from Cyprus through the Yarlung Zangbo River and Java Trench arrives the margin of the northwestern Pacific Ocean. The Mesozoic oceanic crust resulting from the western sector of this spreading system has become the ophiolite zones, the Mesozoic oceanic crust in the northwestern margin of the Pacific Ocean resulting from the eastern sector of this spreading system is on the point of subduct. The Cenozoic spreading system is the active spreading system at present. The evolution of the oceanic and continental crust of the Asia in the Meso-Cenozoic dependents upon the scattered and the collided process of two spreading systems between Asia and its interrelated continents.There are several continental rift valleys that run through Asia have been created or reactivated by the interaction of the oceanic and continental lithosphere. These rift valleys are the Tan-Lu, Baikal-Ninetyeast ridge, Pamir-Laccadive ridge, and the Dead Sea-Afar. At Asia continent there are several geodynamic terrains which are divided by these continental rift valleys.The eastward area of the Baikal-Ninety-east ridge is the extensional tar rain in which the Asia continental crust is creep dispersing toward the Pacific oceanic crust. The eastward ared of the Tan-Lu rift is the crust of transitional pattern. The area between the Baikal-Ninetyeast ridge and the Pamir-Laccadive rift is the extruding terrain which results from the move northward of the Indian subcontinent. The westward asea of the Pamir-Laccadive ridge is the extensional-extru-ding terrain.
