Abstract:

The numerical modelling of tectonic stress field in Minhe Basin during Jurassic Early Cretaceous was made.The result indicates that the basin was in sinistral shear and dextral transportation regime.The induced stress field under the regime determined the basin to be a extentional one.The situs of sub basins and the direction of structural distribution that predicted by the modelling have been verified by geological survey.The Jurassic structures trend was NEE,whereas Early Cretaceous structures extended NE or NWW,and coal bearing sequences developed in separated sub basins during Middle Jurassic.