Through tectonic subsidence analysis of the basin, Xihu depression go through fast subsidence in synrift phases, slow subsidence in depression stage, and then fast re-subsidence after inversion stage.

• 通过盆地构造沉降分析,认为盆地的沉降经历了裂陷期的快速沉降到裂后期的缓慢沉降,再到构造反转后的快速回沉的演化过程。