Dongting basin was shaped not only by tectonic movement but also by potamic and anthropogenic influence.

洞庭湖是由构造运动奠定基本格局，又叠加了江河作人类动的的混成湖。

Northeast is low-angle slope, develop constructive potamic-lake delta, The delta from headstream to lake, extend very long, sediment complex and Microfacies multiplicity.

三角洲从物源到湖泊区,延伸距离远,沉积复杂、微相样。