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内蒙古自治区准格尔旗煤田窑沟矿区晚石炭世和早二迭世孢粉化石属种多样,数量丰富。经作者初步研究,计有48属80多种,其中包括1个新属11个新种。孢粉组合的主要特征如下: 1.晚石炭世太原组孢粉组合由44个属57种组成。这一组合中,蕨类孢子占优势,相当于70％,裸子植物囊型花粉占13％。其重要分子有:Lycospora pusilla,Reinschospora triangulata,Ahrensisporites querickei,Torispora securis,Striatosporites major等。这一组合清楚地显示了晚石炭世的面貌。除了一些新的地方性分子而外,完全可和西欧、北美晚石炭世孢粉组合相对比。 2.早二迭世山西组孢粉组合,以石炭纪典型分子消失,具囊类型花粉增加为特征,例如:Florinites相当于组合16％,Sulcatisporites占27％,Limitisporites占22％及少数Lueckisporites等。根据组合分析,作者认为华北石炭系和二迭系的界线,可以明确地置于太原组的上界处。
Inner Mongolia Autonomous Region Zhungeer coal mine Yaogou gneiss Late Carboniferous and Early Tombs spore pollen species diversity, abundance. After the author’s preliminary study, there are 48 genera and 80 species, including a new genus 11 new species. The main features of the sporopollen assemblage are as follows: 1. The sporopollen assemblage of the Late Carboniferous Taiyuan Formation consists of 44 genera and 57 species. In this combination, fern spores predominate, accounting for 70%, and gymnosperm pollen accounts for 13%. Its important molecules are: Lycospora pusilla, Reinschospora triangulata, Ahrensisporites querickei, Torispora securis, Striatosporites major and so on. This combination clearly shows the face of the Late Carboniferous. Except for some new endemic molecules, it is entirely comparable to the Late Carboniferous sporopollen assemblages in Western Europe and North America. The early Permian Shanxi sporopollen assemblages are characterized by the disappearance of typical carboniferous molecules and the increase of cyst type pollen. For example, Florinites is equivalent to 16% of the combination, Sulcatisporites is 27%, Limitisporites is 22% and a few Lueckisporites are the representatives. According to the combination analysis, the authors believe that the boundary between Carboniferous and Permian in North China can be clearly placed at the upper boundary of Taiyuan Formation.