During the Sinian, a series of catastrophic events occurred in the eastern part of the Yangtze Gorge, including hot, cold and gravity events. In the Early Sinian, clastic sediments formed by fluvial and continental glacial actions were developed; While in late Sinian, great thickness of marine carbonate rocks formed by two transgression-regression cycles were developed. Hot event deposits occurred in Liantuo Formation of Lower Sinian, interbedded in fluvial facies sandstones and siltstones. According to the lithologic characteristics of tuff clasts, descendant tuff clasts and water-carried tuff clasts can be divided. Cold event deposits were developed in the Nantuo Formation of the Lower Sinian and should be continental glacial deposits in a low-latitude and low-altitude area. The gravity events include slumping event and turbidity- current event, and the gravity event deposits were developed in deep-water carbonate rocks in the Upper Sinian. The slumping event deposits were mainly breccia dolostone (limestone) while the turbidity current event deposits were turbidity grain limestone (dolostone).