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华北晚古生代含煤建造形成于受限陆表海背景之下,形多种沉积体系在空间上交互发育的古地理格局。安徽萧县白土周边地区广泛出露煤系露头,属石炭—二叠系的煤层。根据前人对于各地的露头作过古生物、地层和沉积学方面的工作,我们从岩性、岩相、沉积、旋回及煤层特征方面分析了萧县煤田沉积特征,及含煤岩系岩石特征。
The Late Paleozoic coal-bearing formation in North China formed under the background of a restricted land surface sea and formed a palaeogeographic pattern with various sedimentary systems spatially interacting. Anhui Xiaoxian clay surrounding areas widely exposed outcrops of coal measures, is a carboniferous - Permian coal seam. Based on the paleontological, stratigraphic and sedimentological studies of outcrops in the past, we analyzed the sedimentary characteristics of the Xiaoxian coalfield and the rock characteristics of coal-bearing rocks from lithology, lithofacies, sedimentation, cycle and coal seam features.