It is put forward that the nappe structure in this region belongs to the oppositethrusting structure type formed by two sets of thrusts of ones thrusting from SWW to NEE in the west side and those thrusting from NEE to SWW in the east side.

• 提出该区推覆构造属由西侧的自南西西向北东东推覆和东侧的自北东东向南西西推覆的两组逆冲断层组成的对冲结构类型。