SIMILARITIES BETWEEN CENOZOIC BASINS OF DIFFERENT MAGNITUDES IN EAST ASIA CONTINENTAL MARGIN

The Cenozoic basins of different magnitudes in East Asia continental margins are similar and self similar in shape.They are para-rhomb,preferentially delimited by NNE and NEE as well as EW tending faults.During formation,they had similar kinematics with their bilateral blocks being pulled apart in nearly NSdirection;they were also characteristic of similar geodynamics,and the regional minimum main stress trajectories had been oriented nearly NS,which has resulted from collision between Eurosia plate and indianplate,and dextral shearing along the boundary between Eurosia and Pacific plate.Many tectonic phenomena in Cenozoic basins of East Asian continental margins can not be explained by the current theory of"Collision-Extrusion Tectonics".