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New U-Pb age from the Shuijingtuo Formation (Yangtze Gorges area) and its implications for the Cambrian timescale

文献类型：期刊论文

作者Yang, Chuan1,2; Bowyer, Fred T.3; Condon, Daniel J.4; Li, Xian-Hua5; Zhu, Maoyan1,2
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2023-04-15
卷号616页码:8
ISSN号0031-0182
关键词Cambrian Zircon U-Pb Yanjiahe Shuijingtuo ZHUCE South China
DOI10.1016/j.palaeo.2023.111477
通讯作者Yang, Chuan(cyang@nigpas.ac.cn)
英文摘要The Terreneuvian Series of the early Cambrian records the first major diversification phase of the canonical Cambrian explosion. However, a paucity of precise radio-isotopic ages for key stratigraphic horizons has resulted in a poor temporal calibration of fossil lowest occurrences (LO) and corresponding rates of evolution throughout the Terreneuvian. Here we present integrated SIMS and CA-ID-TIMS U-Pb analyses on zircons from the basal Shuijingtuo Formation in the Yangtze Gorges area, South China. The dating results provide a depositional age of 526.43 +/- 0.54 Ma for the basal Shuijingtuo Formation, and compiled detrital zircon U-Pb dates from the Ediacaran-Cambrian transitional strata in the Yangtze Gorges area indicate their local provenances. The new high-precision date provides a minimum age constraint on the ZHUCE (Zhujiaqing positive carbon isotope excursion) and LOs of Watsonella crosbyi and Aldanella attleborensis in South China, and allows correlation of ZHUCE with either 5.5p or 5p/I ' in Siberia and Morocco. We construct two models of the Ediacaran-Cambrian transitional timescale based on the two alternative correlations of the ZHUCE. The first model correlates the ZHUCE with 5.5p and yields significantly diachronous LOs of W. crosbyi and A. attleborensis between the Siberian Platform and South China. In contrast, the second and our preferred model equates ZHUCE with 5p/I ' and implies relatively synchronous LOs of W. crosbyi and A. attleborensis between the Siberian Platform and South China. In the preferred model, the couplet of ZHUCE/5p/I ' and LOs of W. crosbyi and A. attleborensis serves as a reliable combination to bracket the base of Cambrian Stage 2.
WOS关键词CARBON-ISOTOPE STRATIGRAPHY ; SOUTH CHINA ; WATSONELLA-CROSBYI ; YANJIAHE FORMATION ; XIAOTAN SECTION ; CONSTRAINTS ; YUNNAN ; ZIRCON ; FOSSIL ; GEOCHRONOLOGY
资助项目Chinese Ministry of Science and Technology[2022YFF0800100] ; National Natural Science Founda-tion of China[42273026] ; National Natural Science Founda-tion of China[41921002] ; Natural Environment Research Council[NE/R010129/1] ; Natural Environment Research Council[NE/T008458/1] ; Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences[E221110015]
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
出版者ELSEVIER
WOS记录号WOS:000993652700001
资助机构Chinese Ministry of Science and Technology ; National Natural Science Founda-tion of China ; Natural Environment Research Council ; Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences
源URL[http://ir.nigpas.ac.cn/handle/332004/42165]  
专题中国科学院南京地质古生物研究所
通讯作者Yang, Chuan
作者单位1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China
3.Univ Edinburgh, Sch Geosci, James Hutton Rd, Edinburgh EH9 3FE, Scotland
4.British Geol Survey, Nottingham NG12 5GG, England
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Chuan,Bowyer, Fred T.,Condon, Daniel J.,et al. New U-Pb age from the Shuijingtuo Formation (Yangtze Gorges area) and its implications for the Cambrian timescale[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2023,616:8.
APA Yang, Chuan,Bowyer, Fred T.,Condon, Daniel J.,Li, Xian-Hua,&Zhu, Maoyan.(2023).New U-Pb age from the Shuijingtuo Formation (Yangtze Gorges area) and its implications for the Cambrian timescale.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,616,8.
MLA Yang, Chuan,et al."New U-Pb age from the Shuijingtuo Formation (Yangtze Gorges area) and its implications for the Cambrian timescale".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 616(2023):8.

入库方式： OAI收割

来源：南京地质古生物研究所

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