压(扭)性动力学环境下动力机制转换与板内沉降坳陷形成

During the late Hercynian to early Indosinian,most of main oceanic basins of Chinese continent were closed and then had been folded into mountains.The final assembly of different terrenes forms the whole continental plate and the Meso-Cenozoic range-basin system.Also,an intra-plate evolutional pattern under the control of Indian and pacific plate were formed.Intra-plate basin is an important tectonic style by the time of the formation of the united Chinese continent in the Permian(or Triassic)when the oceanic basins were closed and entirely transmuted into terrestrial sedimentation.The formation and evolution of the Meso-Cenozoic basins of northwest China belong to the dynamics and kinematics category which was derived from long-distance effects of oceanic crustal subduction and collision.By studying the settlement motion trajectory and modes of different prototype basins or depressions,and the tectonic movement recorded in strata,and the formation and evolution of the structure,and the evidence of the evolution and transformation of the late time,we probe into the kinematics process of basin-range coupling system and its constraining on the structural deformation system,in order to reveal the dynamics mechanisms and dynamical conversion of basin-range coupling system in western China.