燕山运动造成了本区基底构造的基本轮廓—北东向雁列式隆起与拗陷。
The fundamental framework of geological structure of bedrock in Beijing plain was created due to Yanshan Movement in this region.
前巴达拉胡地震反射构造层具有杂乱反射特征，它填充在拗陷底部；
The pre-Badalahu layer on the bottom of the depression is characterized by chaotic reflections.
根据生物标志物的对比，认为凝析油来自于构造东部的辽中拗陷内高熟的泥岩。
According to the correlation of biomarkers, the condensate comes from the high mature mudstone in the Liao-zhong depression in the east of this structure.
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