通过对三峡地区志留纪纱帽组的系统研究 ,在不同层位上 ,划分出了砂质、灰质、钙屑、含磷质等 4种类型风暴岩。经过其结构特征、沉积序列、沉积相等分析 ,认为砂质风暴岩和含磷质风暴岩隶属近源风暴岩 ,灰质风暴岩隶属远源风暴岩 ,钙屑风暴岩则属于上述两者间的过渡类型。研究区内 4种类型的风暴岩在横向上分布广 ,纵向上风暴作用持续时间短 ,沉积速率大 ,并且结构特征明显 ,便于追索和对比 ,可作为等时性标志层进行地层对比 Based on the systematic study of the Silurianmail cap group in the Three Gorges region, four types of storm rocks, ie, sandy, gray matter, calcium and phosphorous, are classified in different layers. After its structural features, sedimentary sequence and sedimentary facies analysis, it is concluded that sandy and phosphorous stormstones belong to near-source stormstones, and gray-stormstones belong to distantly sourced stormstones. Calcareous stormstones belong to the transition between them Types of. The four types of typhoon rocks in the study area are widely distributed in the horizontal direction, and the duration of the storms in the longitudinal direction is short, the deposition rate is large, and the structural features are obvious, which facilitates recourse and comparison, and can be used as a stratigraphic contrast for the isochronous marker layer