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伊舒地堑是一典型的转换伸展型盆地，它以构造上和沉积上的不对称结构，沉降中心的明显迁移和快速沉降充填为主要特征。本文应用盆地充填记录、盆地构造格架和盆地沉降史分析论证了伊舒地堑构造演化过程中不同级别的幕式裂陷作用，确定了幕式裂陷作用的沉积响应。此外，文章还总结了３种类型的沉积体系域构成样式和沉积特征
The Yishu graben is a typical conversion extensional basin characterized by asymmetric structures on the structure and sediments, obvious migration of the settlement centers and rapid subsidence filling. In this paper, different types of episodic rifting during the tectonic evolution of the Yishu graben have been demonstrated by the basin filling record, the tectonic framework of the basin and the basin subsidence history, and the sedimentary response of the episodic rift has been determined. In addition, the article also summarizes the three types of sedimentary system domain composition patterns and sedimentary characteristics