艾－ 桑区带内各种类型的圈闭较发育，主要的圈闭类型有断背斜、断块潜山、盐底辟背斜、低幅度挤压背斜和非构造圈闭，其中与盐体有关的圈闭占有重要的地位。海西晚期、印支－ 燕山期和喜山期的构造运动在区带内形成了一系列圈闭，其中，在奥陶系、石炭系及三叠系的圈闭中已获重大油气突破 Various types of traps in the Ai-Sang zone are well developed. The main trap types are faulted anticline, fault block buried hill, salt diapir anticline, low-amplitude crustal anticline and non-structural traps, of which the salts with salt Body related traps occupy an important position. In the late Hercynian, the Indosinian-Yanshanian and the Himalayan tectonic movements formed a series of traps in the zone, of which major oil and gas breakthroughs have been made in the Ordovician, Carboniferous and Triassic traps