Topographic ramp often come into being in the edge of depression lake basin in the process of basin basement deformation under extrusion stress, the key factors controlling sequence development such as subsiding rate of basement and initial topographic slope have apparent difference on the two sides of ramp, which in.

The paper chose J1s-K1q1 formation in Shinan area, central Jungar basin asresearch object, which was typical gentle slope of depression lake basin andconducted sequence stratigraphic research, depositional facies research and oil poolforming rules research.

Significance of slope break zones in downwarped lake basins to exploration of non-structural traps in Junggar basin;

Characteristics of slope breaks and their control on atectonic traps in downwarped lake basin;

The Jurassic rocks in Qimugen-Sangzhuhe comprise Xilibili-Kuslapu fault basin and Damusi-Momoli- Keliyang depression basin separated by Qongkuoruolek anticline.

The latest 2D seismic data indicate that the east depression of North Yellow Sea develops 4 significant unconformities: the unconformity between the Jurassic and Cretaceous, the one between the Mesozoic and Cenozoic, the one inside the Oligocene and the one between the Neogene and Paleogene.

Along with Tajik Basin and the Southwest Southwest Depression of Tarim Basin, Alay Basin was one of the remnant basins on the north rim of the Tethys during the Late Triassic to Paleogene, it became a peripheral foreland basin in Miocene.