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针对舞阳陆相盐湖凹陷特定的盐泥互层地层结构和盐岩封隔层的特殊性，从凹陷内异常流体压力的分布特征出发，探讨其形成的主要机理，浅部异常压力体系成困与快速沉降造成不均衡压实和构造挤压引起的压应力的增加有关，中部则主要与盐岩封闭性使泥岩中的流体在沉降过程中不能徘泄出而在欠压实泥岩中形成的压应力的增加有关，深部主要与凹陷快速沉降、水热增压和有机物转化成烃综合作用有关。
In view of the particular structure of salt-mud interbedded strata and the particularity of salt-rock packs in the Wuhu salt-lacustrine salt-sag depression, the main mechanism of formation is discussed based on the distribution of abnormal fluid pressure in the sag. The rapid subsidence caused by unbalanced compaction is related to the increase of compressive stress caused by tectonic compression. The central part is mainly closed with salt rock so that the fluid in mudstone can not escape during sedimentation and form in undercompacted mudstone The increase of stress is mainly related to the rapid subsidence of deep depression, hydrothermal pressurization and the conversion of organic matter into hydrocarbon.