The sequence stratigraphy of continental foreland basins is an important domain in current research.The southern Junggar basin is a regenerated compound foreland basin resulted from two-phase superimposition.The sequences of the late phase foreland basin can be divided into 1 first-order sequence

3 second-order sequences

5 third-order sequences and 15 fourth-order sequences in accordance with analyses results of outcrops

cores

seismic data

and well logs.Four systems tracts are recognized in each second-order sequences based on the cyclicity of tectonic and sedimentary evolution and the internal architectures of the sequences.The sequence stratigraphic model of southern Junggar foreland basin is established and sequence-stratigraphic responses to tectonics are discussed in this paper.Tectonic activity controls the formation of sequence boundary

which is formed mainly by the resilient uplift at the end of a thrusting and the deformation caused by the following thrusting.With continuous advancement of the orogenic belt front

the center of subsidence and depocenter of the foreland basin migrate toward the ramp region.The tectonic sequences are developed cyclically and periodically

and each sequence begins with a speeding up of subsidence.