Tectonic sequence of Tertiary in Jiyang Depression and its evolution

In this paper, following the theory of tectonic sequence and sequence stratigraphy, I build up the tectonic sequence of Tertiary in Jiyang Depression, analyze the identifying characteristics, sequence stratigraphic and tectonic characters of each tectonic sequence, propose that this series of tectonic sequences experienced three evolving phases, i.e., tectonic sequence transition phase of Kongdian, developing phase of Shahejie Depression and the latest tectonic inversion phase of Dongying. Furthermore, I will carry out the study in the tectonic evolving rules of Jiyang Depression, and hence provide new ideas for the further research.