A BREAKTHROUGH OF DIVISION AND CORRELATION OF THE LOWER TERTIARY SYSTEM OF SOME BASINS IN HENAN PROVINCE
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摘要: 本文系统的阐述了河南诸盆地的下第三纪地层,以大量的微体古生物资料论证了它的时代归属,提出了古新统的存在和分布。并根据大量的藻类化石确认这些地区当时处于湖相和有时有短暂的北北东向海浸的沉积环境。Abstract: The systematical studies of the Lower Tertiary strata of various inland basins in Henan are made in this paper. The Lower Tertiary System bears rich fossils, such as Ostrcoda, Sporo-pollen, Algae, Bivalves, Gastropoda, Charophyta Mammalia, etc., In algae fossil assemblages, the main compo-nents are Deflandrea, Bohaidina, Parabohaidina, Conicoidium, Leiospaevi-dia, Rugasphaera, Campenia and Pediastrum, etc., According to abundant algae fossils discovered in Lower Tertiary System in Miyang Depression, Xiangcheng Depression, Wuyang Depression, Tongben and Banqiao basins, it is believed that these regions would be in an environment of lacustrine facies with short inundation.
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