河南汝阳含巨型蜥脚类恐龙动物群地层时代的孢粉学证据  

Palynology evidence for the stratigraphic age of the giant sauropod dinosaur fauna in Ruyang of Henan province

作　　者：涂黎[1] 翁霞[1] 朱红卫[1] 曾光艳[1] 陈红旗 李梦帆 TU Li;WENG Xia;ZHU Hongwei;ZENG Guangyan;CHEN Hongqi;LI Mengfan(Exploration&Development Research Institute of Henan Oilfield Company,SINOPEC,Nanyang,Henan 473132,China;Henan Pingdingshan Petroleum Company of SINOPEC Petrochemical Distribution Co.,Ltd.,Pingdingshan 467000,Henan,China;Petroleum Engineering Technology Research Institute of Henan Oilfield Company,SINOPEC,Nanyang,Henan 473132,China)

机构地区：[1]中国石化河南油田分公司勘探开发研究院,河南南阳473132 [2]中国石化销售股份有限公司河南平顶山石油分公司,河南平顶山467000 [3]中国石化河南油田分公司石油工程技术研究院,河南南阳473132

出　　处：《石油地质与工程》2023年第4期45-50,共6页Petroleum Geology and Engineering

摘　　要：河南汝阳等地区大量微体古生物样品分析,首次在原“蟒川组”发现大量保存完好的孢粉化石。通过对化石组合特征进行记述和对重要化石地质时代进行讨论,结果表明,该孢粉类群及其含量变化的组合特征与松辽盆地登楼库组、河南周口商水组孢粉化石特征相似,确定其时代为早白垩世Aptain期。孢粉学研究丰富了汝阳地区的地层古生物内容,为厘定赋存巨型蜥脚类恐龙动物群的地层时代提供了孢粉学证据。A large number of micro paleontological samples were analyzed in Ruyang and other areas of Henan province,and for the first time,a large number of well-preserved spore and pollen fossils were found in the original"Mangchuan Formation".By describing the characteristics of fossil assemblages and discussing the geological ages of important fossils,the results show that the assemblage characteristics of this sporopollen group and its content changes are similar to the sporopollen fossil characteristics of the Denglouku Formation in the Songliao Basin and the Shangshui Formation in Zhoukou,Henan.It is determined that its age is the Early Cretaceous Aptain period.The study of palynology enriches the content of stratigraphy and paleontology in Ruyang area,and provides palynology evidence for determining the stratigraphic age of giant sauropod dinosaur fauna.

关 键 词：汝阳 “蟒川组” 孢粉化石 早白垩世 

分 类 号：Q913.8[天文地球—古生物学与地层学]