主要勘探目的层是第三系的沙河街组地层。

The main exploration target is the Tertiary Shahejie Group.

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下第三系的构造变形主要表现为区内下第三系红层的逆冲断块和宽缓褶皱变形。

The structural deformation of the Paleogene is characterized evidently by thrust block and broad folds.

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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.

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