利用层序地层学方法,将阿瓦提凹陷三叠系划分为4个三级层序;根据地震相参数,从内部结构和外部形态出发,结合反射连续性、反射振幅、频率等,在地震剖面上共识别出高振高连平行席状地震相、中振中连平行-亚平行席状地震相、中低振低连亚平行地震相、杂乱反射地震相、前积地震相等5种主要的地震相类型,这些地震相在平面上分布部位明确,纵向上具有差异性和继承性,与凹陷结构及构造演化有着良好的对应关系。 By means of sequence stratigraphy, the Triassic system of Awati Depression is divided into four third-order sequences. According to the seismic phase parameters, starting from the internal structure and external morphology, combining the reflection continuity, reflection amplitude and frequency, In the profile, there are five main types of seismic facies including high seismic height and parallel seismic facies, middle seismic parallel and sub-parallel seismic facies, middle and low seismic facies and sub-parallel seismic facies, . These seismic facies are clearly distributed in the plane and have the difference and succession in the vertical direction, which has a good correspondence with the depression structure and tectonic evolution.