The comprehensive interpretation of 6 deep seismic sections of 1 354.6 km long and 15 s deep has revealed the important geological characteristics of strata

intrusive mass and tectonics in deep Songliao Basin.The interpretation results indicate that Songliao Basin consists of upper curst layer and lower crust layer

the boundary between the two layers is on the top of network of reflecting horizon.According to the amplitude of vibration

wave group continuity and forms of seismic waves reflected on the 6 sections

the Meso Cenozoic

Upper Paleozoic

Predevonian

Precambrian

intrusive mass and the basic magma basement could be identified.Especially the special geological body of igneous rock-the mantle thermal diapir found in deep crust layer bears close relation to gas distribution.It is an important evidence of searching for inorganic natural gas.It has been proved that the deviation mirror image between moho swell and the basin's depressed center

the listric faults and detaching zones developed in the basin are all resulted from simple shear action.