Tectonics and deep structure features of Meso-Cenozoic basin groups, northern NE China

The formation and evolution of Meso-Cenozoic basin groups in Songliao basin and its both side areas appear two tectonic evolution cycles including two basin formation periods and two inversion periods.The differences of lithosphere thickness,asthenospheric rolling,depth of Mohr and effective elastic thickness of lithosphere in the tectonic place resulted in regularly changes of space-time evolution of three basin groups and structure features.Our study results show that the basin type,rift-depression style,inversion structure system and structural evolution regularity of shallow seated basins were evidently controlled by deep geodynamic structure of lithosphere.