Coal - bearing strata in the Wangguanzhuang exploration area belongs to Permo - Carboniferous North China type coal - bearing formation.

王官庄探区含煤岩系为石炭—二叠系,属华北型含煤建造,煤系厚度稳定,旋回结构与粒度韵律清晰,且变化有一定规律.

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Coal geology emphatically studies always stratigraphy and sedimentology of coal and coal - bearing strata.

煤地质学一直偏重于对煤和含煤地层的地层学和沉积学的研究.

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