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构造 沉积背景分析表明，塔里木盆地北部石炭系含盐层系主要形成于干旱炎热气候条件，受海平面变化控制的滨岸潮间蒸发泻湖环境，厚度为８０～２２１ ｍ 。受区域性构造运动的影响，盐体在地史时期曾经历了三次较为明显的塑性流动：第一次发生在早二叠世末期，表现为盐体向南流动了２～２－８ ｋｍ ；第二次发生在晚三叠世—早侏罗世早期，盐体向南流动距离为１ ～２ ．８ ｋｍ ；第三次发生在晚第三纪末期，盐体向北回流，距离为０－５ ～１－２ ｋｍ 。因盐体塑性流动形成的构造圈闭类型主要有盐脊背斜、盐丘背斜、盐边向斜等。勘探实践证明，盐脊背斜是主要的含油气构造，盐丘背斜、盐边向斜也应给予足够重视
The tectonic sedimentary background analysis shows that the Carboniferous salt strata in the northern Tarim Basin are mainly formed in arid and hot climates with an evaporative lagoon environment of 80 ~ 221 m in thickness controlled by the sea level. Affected by the regional tectonic movement, the salt body experienced three obvious plastic flows during the geodesy period: the first occurred in the late Early Permian, and the salt flowed southwards 2-8 km; The second occurred in the Late Triassic to Early Jurassic, and salt flowed southward to 1 ~ 2. The third occurred at the end of the Late Tertiary. The salt body returned to the north with a distance of 0-5 ~ 1-2 km. The structural traps formed by the plastic flow of salt bodies include salt ridge anticline, salt dome anticline and salt edge syncline. Exploration proved that the salt ridge anticline is the main oil and gas structure, salt dome anticline, salt side syncline should also be given enough attention