A new SIMS zircon U-Pb date from the Ediacaran Doushantuo Formation: age constraint on the Weng'an biota
文献类型：期刊论文
| 作者 | Zhou, Chuanming1; Li, Xian-Hua2; Xiao, Shuhai3; Lan, Zhongwu2; Ouyang, Qing1,4; Guan, Chengguo1; Chen, Zhe1 |
| 刊名 | GEOLOGICAL MAGAZINE
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 154期号:6页码:1193-1201 |
| 关键词 | Phosphatized Lagerstatte Lithostratigraphic And Biostratigraphic Correlation Tuffaceous Bed Zhangcunping South China |
| ISSN号 | 0016-7568 |
| DOI | 10.1017/S0016756816001175 |
| 文献子类 | Article |
| 英文摘要 | As a well-known phosphatized Lagerstatte, the Ediacaran Weng'an biota in central Guizhou Province of South China contains diverse acanthomorphic acritarchs, algal thalli, tubular microfossils as well as various spheroidal fossils. These fossils provide crucial palaeontological evidence for the radiation of multicellular eukaryotes after the termination of the Neoproterozoic global glaciation. While the Weng'an biota is generally considered as early Ediacaran in age on the basis of phosphorite Pb-Pb isochron ages ranging from 572 Ma to 599 Ma, the reliability and accuracy of these age data have been questioned and some geologists have proposed that the Weng'an biota may be younger than 580 Ma instead. Here we report a SIMS zircon U-Pb age of 609 +/- 5 Ma for a tuffaceous bed immediately above the upper phosphorite unit in the Doushantuo Formation at Zhangcunping, Yichang, South China. Litho-, bio- and chemostratigraphic correlations suggest that the upper phosphorite unit at Zhangcunping can be well correlated with the upper phosphorite unit at Weng'an, which is the main horizon of the Weng'an biota. We therefore conclude that the Weng'an biota could be as old as 609 +/- 5 Ma. |
| WOS关键词 | YANGTZE GORGES AREA ; SOUTH CHINA ; ACANTHOMORPHIC ACRITARCHS ; METAZOAN EVOLUTION ; ANIMAL FOSSILS ; LU-HF ; EUKARYOTES ; ASSEMBLAGE ; RADIATION ; EMBRYOS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000413978800002 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| 资助机构 | National Basic Research Program of China(2013CB835005) ; Chinese Academy of Sciences(KZZD-EW-02) ; National Science Foundation(EAR-1528553) ; National Basic Research Program of China(2013CB835005) ; Chinese Academy of Sciences(KZZD-EW-02) ; National Science Foundation(EAR-1528553) ; National Basic Research Program of China(2013CB835005) ; Chinese Academy of Sciences(KZZD-EW-02) ; National Science Foundation(EAR-1528553) ; National Basic Research Program of China(2013CB835005) ; Chinese Academy of Sciences(KZZD-EW-02) ; National Science Foundation(EAR-1528553) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/62473]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Zhou, Chuanming |
| 作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, CAS Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Virginia Tech, Dept Geosci, Blacksburg, VA 24061 USA 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Chuanming,Li, Xian-Hua,Xiao, Shuhai,et al. A new SIMS zircon U-Pb date from the Ediacaran Doushantuo Formation: age constraint on the Weng'an biota[J]. GEOLOGICAL MAGAZINE,2017,154(6):1193-1201. |
| APA | Zhou, Chuanming.,Li, Xian-Hua.,Xiao, Shuhai.,Lan, Zhongwu.,Ouyang, Qing.,...&Chen, Zhe.(2017).A new SIMS zircon U-Pb date from the Ediacaran Doushantuo Formation: age constraint on the Weng'an biota.GEOLOGICAL MAGAZINE,154(6),1193-1201. |
| MLA | Zhou, Chuanming,et al."A new SIMS zircon U-Pb date from the Ediacaran Doushantuo Formation: age constraint on the Weng'an biota".GEOLOGICAL MAGAZINE 154.6(2017):1193-1201. |
入库方式： OAI收割
来源：地质与地球物理研究所
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