多旋回沉积产生多元复合成烃的生油体系。
Polycyclic sedimentation formed an oil generating system with multiple polygenetic hydrocarbon.
东濮凹陷是渤海湾地区一个典型的盐湖盆地，其下第三系的两个沉积旋回沉积了两套盐岩。
Dongpu depression, in which the halites were deposited in two depositional cycles, is a typical salty lacus in Bohaiwan basin.
在纵向上，从E31 - E32，从下向上由辫状河三角洲相变为浅湖相，构成了一正旋回沉积。
In vertical, from E31 to E32, it changes from braided river delta to a shallow lake facies, thus, formed a cycle which lithologic character is rough at bottom.
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