The key structure in this area is a duplex that comprises of a shallow fault-bend fold of the Late Triassic and a deep blind stacking anticline imbricated by three thrust sheets of Cenozoic age.

• 矿山梁构造几何学上表现为一个双重构造:浅层是一个晚三叠世形成的断层转折褶皱;深层则是在新生代形成的三个逆冲岩片叠置所构成的隐伏堆垛背斜构造。