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Pb-Pb ages of Neoproterozoic Doushantuo phosphorites in South China: constraints on early metazoan evolution and glaciation events
文献类型：期刊论文
| 作者 | Chen, DF ; Dong, WQ ; Zhu, BQ ; Chen, XP |
| 刊名 | PRECAMBRIAN RESEARCH
 |
| 出版日期 | 2004 |
| 卷号 | 132期号:40545页码:123-132 |
| 关键词 | Pb-Pb isochron age Doushantuo formation Weng' an fauna glaciations terminal neoproterozic phosphorite |
| ISSN号 | 0301-9268 |
| 通讯作者 | cdf@gig.ac.cn |
| 中文摘要 | The Pb-Pb isochron ages of 576 +/- 14 Ma for the upper part of the Upper Phosphorite Bed (UPB, this study) and 599 +/- 4 Ma for the lower part of the UPB [Earth Planet. Sci. Lett. 201 (2002) 203] in the Doushantuo Formation in the Weng'an area, South China, suggest that the deposition of the UPB lasted at least 5 Ma, and indicate that the observed microfossil assemblage (animal remains, multicellular algae, and giant process-bearing acritarchs) in the Doushantuo Formation predates all well-dated diverse Ediacaran assemblages and represents the earlier paleontological record of eukaryotes radiation on Earth. The 576 +/- 14 Ma age in the upper part of the UPB approximates the age of a negative delta(13)C excursion near the boundary between the Doushantuo and the overlying Dengying Formation if the Doushantuo-Dengying boundary at the Weng'an area is equivalent to that in the Yangtze Gorges area. This negative excursion might correlate to a post-Marinoan glaciation in South China, suggesting that the ice age following Doushantuo sediment deposition is younger than 590 Ma. The 599 +/- 4 Ma age in the lower part of the UPB [Earth Planet. Sci. Lett. 201 (2002) 203] represents the minimum age of the Nantuo diamictites, which are generally correlated with the Marinoan glaciation. (C) 2004 Elsevier B.V. All rights reserved. |
| 学科主题 | Geosciences, Multidisciplinary |
| 收录类别 | SCI |
| 原文出处 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000221988900006 |
| 公开日期 | 2011-07-03 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/4804]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 推荐引用方式 GB/T 7714 | Chen, DF,Dong, WQ,Zhu, BQ,et al. Pb-Pb ages of Neoproterozoic Doushantuo phosphorites in South China: constraints on early metazoan evolution and glaciation events[J]. PRECAMBRIAN RESEARCH,2004,132(40545):123-132. |
| APA | Chen, DF,Dong, WQ,Zhu, BQ,&Chen, XP.(2004).Pb-Pb ages of Neoproterozoic Doushantuo phosphorites in South China: constraints on early metazoan evolution and glaciation events.PRECAMBRIAN RESEARCH,132(40545),123-132. |
| MLA | Chen, DF,et al."Pb-Pb ages of Neoproterozoic Doushantuo phosphorites in South China: constraints on early metazoan evolution and glaciation events".PRECAMBRIAN RESEARCH 132.40545(2004):123-132. |
入库方式： OAI收割
来源：南海海洋研究所
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