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安徽两淮地区为我国重要的煤炭基地之一。作者在砀山梁寨H210.H013钻孔样品中发现了丰富的孢粉化石,为该区地层的划分充实了依据。按孢粉组合特征本区石炭—二叠系可划为本溪组、太原组、山西组、下石盒子组、上石盒子组。同时可将有争论的上、下石盒子组的界线,置于FF013—18与FF013—20之间的厚层石英砂层的底部。
Anhui Huaihe area is one of the important coal bases in our country. The authors found abundance of sporo-pollen fossils in the H210.H013 drilling sample in Liangshanzhai Village, which provided a basis for the stratigraphic division in this area. According to the characteristics of sporopollen assemblages Carboniferous-Permian in this area can be classified as Benxi Formation, Taiyuan Formation, Shanxi Formation, Xiashihezi Formation and Shangshihezi Formation. At the same time, the boundary of the controversial upper and lower stone box subgroups can be placed at the bottom of the thick quartz sand between FF013-18 and FF013-20.