| 山东平邑盆地古新世孢粉组合及其古气候意义 |
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| 作者单位： | ;1.山东省地质科学研究院;2.中国科学院南京分院 |
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| 摘 要： | 本文对山东平邑盆地卞桥镇国泰庄西ZK101井卞桥组二段的21块井壁岩芯样品进行分析,在其中5块样品中发现了大量保存较好的孢粉和一些淡水藻类化石,总计60属2亚属63种及部分未定种。据此建立了一个孢粉组合,即Pterisisporites-Ephedripites-Ulmaceae组合。该组合以凤尾蕨科和麻黄科花粉占优势,榆科有一定含量为其主要特征,并通过对一些重要分子的地质时代分布及与邻区相关孢粉组合进行对比,确定了其时代为古新世,同时讨论了该孢粉植物群所反映的古气候特点。
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| 关 键 词： | 孢粉组合 古气候 古新世 卞桥组 平邑盆地 山东 |
PALEOCENE SPORO-POLLEN FOSSILS OF THE PINGYI BASIN,SHANDONG PROVINCE,CHINA |
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| Affiliation: | ,Institute of Geological Science,Shandong Province,Nanjing Branch of the Chinese Academy of Sciences |
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| Abstract: | Five core samples taken form the second member of the Bianqiao Formation at well ZK101,west Guotaizhuang Village,Bianqiao of the Pingyi County,Shandong Province,China have been studied.Abundant well-preserved sporo-pollen fossils have been found including 63 species and some undeterminate species in 60 genera,2subgenus.Based on the quantitative analysis,a sporo-pollen assemblage is recognized as Pterisisporites-Ephedripites-Ulmaceae assemblage.According to the geological range of some important elements and the correlation with relevant assemblages of the neighbouring areas,the assemblage is assigned to the Paleocene and palaeoclimatic conditions are reconstructed. |
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| Keywords: | sporo-pollen assemblage palaeoclimate Paleocene Bianqiao Formation Pingyi Basin Shandong Province China |
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