The reasons forming abnormal formation pressure mainly includes digenesis, thermogenesis, biochemical action, tectonic action, dialysis, and fluid density difference action.
The sequence classification and dynamic analysis of this basin provide an important evidence to the stratigraphic correlation, tectonic analysis and minerogenesis.
Characteristics of plastic deformation of stress minerals in veins, such as subgrain tectonics, deformation, lamellae and deformation bands, can be found.