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Age of the Silurian Lower Red Beds in South China:Stratigraphical Evidence from the Sanbaiti Section

查看全文 作　　者：Zhongyang [1]Chen;Peep [2]Mannik;Junxuan [3]Fan;Chengyuan [1]Wang;Qing [1]Chen;Zongyuan [4]Sun;Dongyang [5]Chen;Chao [1,6]Li 高影响力作者 机构地区：[1]State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology,Center for Excellence in Life and Paleoenvironment,Chinese Academy of Sciences,Nanjing 210008,China;[2]Department of Geology,Tallinn University of Technology,Tallinn 19086,Estonia;[3]State Key Laboratory for Mineral Deposits Research,School of Earth Sciences and Engineering,Nanjing University,Nanjing 210023,China;[4]State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China;[5]Jiangsu Huohe Information Technology Co.,Ltd.,Nanjing 210028,China;[6]University of Chinese Academy of Sciences,Beijing 100049,China高影响力机构 出　　处：《Journal of Earth Science》索引2021年第32卷第3期,共10页高影响力期刊 基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB26000000);the National Science and Technology Major Project of China(No.2017ZX05035002-001);the National Natural Science Foundation of China(Nos.41972162 and 41725007);the Estonian Research Council(No.PRG836)。 摘　　要：The age of the Silurian Lower Red Beds in the Upper Yangtze region remains debatable.Twenty-four samples were collected for conodont biostratigraphical studies from the Paiyunan Formation in the Sanbaiti Section,Huaying,Sichuan Province.The conodont fauna from the Paiyunan Formation,together with the graptolites from the underlying Lungmachi Formation,indicates that the Lower Red Beds at Sanbaiti correspond to the lower Telychian.Comparative analysis indicates that most exposures of the Lower Red Beds in the Upper Yangtze region can be assigned,in general,to the Telychian Stage,except for several localities,where the Lower Red Beds can be roughly dated as an interval between the upper Aeronian and lower Telychian. 关 键 词：Lower Red Beds CONODONT GRAPTOLITE Telychian(Silurian) Paiyunan Formation Sichuan Province
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