萨胡判别分析证明，与煤共生的粗碎屑岩不是形成于河流环境，而是形成于深水浊积沉积环境。
The discriminant analysis on inorganic element abundance shows that the palaeosedimentary environment of Jurassic in the Yanqi Basin is close to that of Dongying Sag.
主要的含油气层系为中上侏罗统浅海相砂岩和上白垩统河流、三角洲相碎屑岩。
Main hydrocarbon bearing layer systems are Middle-Upper Jurassic shallow Marine sandstone, Upper Crataceous river faciess and delta faciess clastic rock.
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