The Palaeogene system in the southern west sag of the Dongpu depression consists of rift lacustrine deposits, and is developed with fluvial, delta, alluvial, fan delta and lacustrine facies.
东濮凹陷西洼南段老第三系属地堑型湖盆沉积，主要发育河流相、三角洲相、冲积扇相、扇三角洲相以及湖泊相。
The early to middle Jurassic coal-bearing deposition is mainly consisted of fluvial or lakeshore, estuarine delta facies, lacustrine facies and slough facies.
蔚县煤田早中侏罗世含煤沉积，主要由河流或湖滨河口三角洲相、湖泊相、泥沼相组成。
The Lower Triassic is of fluvial lacustrine facies with red bed features and notably different from its underlying Upper Permian Linxi Formation.
这套地层为具有红层性质的河—湖环境产物，与下伏上二叠统林西组沉积有较大的差异。
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