For gas reservoirs in the fold-thrust belts of foreland basins and in rift basins,faults constitute the main carrier systems,and hydrocarbons migrate mainly in vertical direction with short migration distance and high delivery efficiency.

A 140km seismic reflection profile across the southern Dabie orogen and the Yangtze foreland reveals the detailed structures of the crust beneath the region.

A near-vertical deep seismic reflection profile across the whole foreland of Dabie Shan Orogen, is about 140 km long, and the length of recorded time was up to 30 s two-way time with a 600-channel and 24-bit SN 388, to make sure that sounding depth be over the depth to Moho and down to the Mantle.

Transporting conditions of faults required in formation of large and medium gas fields with high efficiency in foreland basin;

Different origins of natural gas in secondary gas pool in Western Sichuan foreland basin;

Overpressure compartment sealed by faults in Kuqa foreland basin;

Owing to the continent continent collision between the North China and Yangtze plates during the Indosinian early Yanshanian period, the Lower Yangtze region south of the collision belt developed into a foreland deformation belt.