The Characteristic And Tectonic Significance Of Sandbodies In Datong Late Paleozoic Coal-Forming Basin

With sandbodies in Datong late paleozoic coal-forming basin as the research object, from the viewpoint of sedimentology, the thesis analyzes and studies sandbodies sedimentary environment, distribution characteristics and skeletal grain composition by connecting with evolution history primarily studied the relationship of sandbodies sedimentary environment and coal accumulation, the influence on ash contents of coal seam by distribution characteristics of sandbodies, the location of basin provenance and its structural setting.According to comprehensive research on petrological characteristic, sedimentary structures, clay mineral and trace element in mudstone and granulometric analysis, transformation of sedimentary environment from marine to continental facies was ascertained in Datong late paleozoic coal-forming basin. The Benxi formation of the middle Carboniferous series...