Strike-slip tectonics formed possibly in Himalayan Period when the boundary faults thrusted and right lateral strike slipped concurrently, intersect the boundary faults of the central geotectogene and collocate like the en-echelon faults.

• 在中央拗陷带内走滑断层与边界主断层斜交并呈“雁列式”排列，表明走滑构造可能在边界断层发生大规模逆冲兼右行走滑时形成，其形成时期可能为喜山期。