SPOROPOLLEN ASSEMBLAGE IN LATE PALEOZOIC COAL SERIES OF DANGSHAN, ANHUI PROVINCE

Liang-Huai Region in Anhui province is one of the important coal bases of China. Abundant sporopollen fossils were found in core samples of well H210 and well H013 taken from Liangzhai, Dangshan, which provide the basis for stratigraphical division of that region. According to the chara-cteristics of sporopollen assemblages, Permo-Carboniferous system of that region could be divided into Benxi Group, Taiyuan Group, Lower Shihezi Group and Upper Shihezi Group. In addition, the disputed boundary between upper and lower Shihezi groups put here on the bottom of thick quartz sands between FFO13-18 and FFO13-20.