Abstract: According to the faulting style, positive reversed structures can be divided into single type and composite type, where the single type can be subdivided into three subtypes (including seven minor types),such as compressional dipslip one,compressional torsion one and strike-slip induction one; the composite type can be subdivided into two subtypes(including eight minor types), such as compression and dip-slip composite one and compression and torsion composite one. The formation mechanisms and recognition markers in plane and cross section for each structure were discussed. The characteristics of each one were demonstrated and analyzed by means of the cases. It is considered that the most positive reversed structures were formed in reverse motion stage(i.e. stress field was transformed to compressive stress one) of tensional basin evolution.

Key words: Structural type, Structural model, Deformation, Mechanism, Compression, Pull-apart structure, Strike slip fault