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对东胜煤田城梁井田、乃马岱井田原延安组底部地层进行了研究,并与区域中相同层位的地层进行了岩石地层学和气候地层学对比,认为在研究区或更大范围内都富存有早侏罗世晚期富县组。研究区富县组的发现,对原来侏罗纪煤系沉积基底为西北高、东南低的古地理格局及构造运动对盆地影响结果的观点产生了动摇,应该重新进行认识。
The strata at the bottom of Yan’an Formation in Chengliangtian and Naimaidai of Dongsheng Coalfield are studied and lithostratigraphy and climatic stratigraphy are compared with the strata of the same layer in the area. It is concluded that in the study area or within a larger area All rich in early Jurassic Fuxian group. The discovery of the Fuxian Formation in the study area has shaken the original view that the sedimentary basement of the Jurassic coal measure was high in the northwest and low in the southeast and tectonic movements affected the results of the basin and should be re-recognized.