The area had undergone such evolution stages as passive borderland basining, squeerze-retrograde nose-like swelling, cratonic inner sagging. intracratonic basining and para-foreland basin.

克拉通内凹阶段；克拉通内地发展阶段和类地发展阶段。

From the correlation with foreland basins abroad it is concluded that Sichuan basin resulted from Polydirectional compression stress.

在与地对比的基础上，得出四川地是一个受多方向挤压应力综合作用的地。