The contacts between the relic slices of Mesoproterozoic Changcheng Group, lying between the Niuyingzi-Guojiadian Basin and the Dengzhangzi Bansin, and the Beipiao group to the east is a major east southeast-ward thrust fault.

• ( 2 )分布于郭家店盆地和邓杖子盆地之间的中元古界长城系地层“残片” ,与其东侧北票组间为向SEE逆冲的断层接触 ,而西侧与土城子组 (原邓杖子组 )之间为不整合接触 ;