河北宽城地区中元古界高于庄组微古植物群

通过对河北宽城地区高于庄组微古植物进行系统采样,利用化学浸解法,获得了大量微古植物信息,在80件样品中发现微古植物个体5000余粒,共鉴定出41属108种(含1个新属,9个新种,38个未定种),其中包括丰富的多细胞植物化石及其碎片。根据微古植物化石的分布和特征,划分出4个化石组合。与下伏长城系微古植物相比,高于庄组微古植物具有明显的差异。这些微古植物的发现为地球早期生物演化、区域地层划分和对比,以及生物成矿和成油研究提供了重要信息。

Research on the micropalaeoflora from the Mesoproterozoic Gaoyuzhuang Formation in Kuancheng area, Hebei Province

On the basis of systematic sampling and chemical soaking treatment, 108 species belonging to 41 genera (including 9 new species, 38 unknown species, 1 new genius) of microplants fossils were discovered from 80 samples of the Gaoyuzhuang Formation in Kuancheng area, totally about 5000 individuals, including abundant metaphyte and their fragments. According to the distribution and features of these microfossils, four fossil assemblages were recognized. There are some obvious differences between the fossils from Changcheng System and those from Gaoyuzhuang Formation. The research on these fossils provides important information for the evolution of organic evolution, regional stratigraphic division and correlation as well as biogenic mineralization and oiliness.On the basis of systematic sampling and chemical soaking treatment, 108 species belonging to 41 genera (including 9 new species, 38 unknown species, 1 new genius) of microplants fossils were discovered from 80 samples of the Gaoyuzhuang Formation in Kuancheng area, totally about 5000 individuals, including abundant metaphyte and their fragments. According to the distribution and features of these microfossils, four fossil assemblages were recognized. There are some obvious differences between the fossils from Changcheng System and those from Gaoyuzhuang Formation. The research on these fossils provides important information for the evolution of organic evolution, regional stratigraphic division and correlation as well as biogenic mineralization and oiliness.