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Revisiting the Liantuo Formation in Yangtze Block, South China: SIMS U-Pb zircon age constraints and regional and global significance

文献类型：期刊论文

作者Lan, Zhongwu1; Li, Xian-Hua1; Zhu, Maoyan2; Zhang, Qirui1; Li, Qiu-Li1
刊名PRECAMBRIAN RESEARCH
出版日期2015-07-01
卷号263页码:123-141
关键词Liantuo Formation South China Sims U-pb Zircon Ages Tuff/tuffaceous Siltstone Beds Banxi Group Age Paleopole Contradictions
DOI10.1016/j.precamres.2015.03.012
文献子类Article
英文摘要The age and stratigraphic correlation of the Liantuo Formation in the Yangtze Block have been controversial. Disputes diverge on whether it is correlative with the Xieshuihe Formation, the Fulu Formation, the Chang'an Formation or the Banxi Group. Some radiometric dates have been obtained from the Liantuo Formation but they suffer from inheritance. In this paper, we carried out a detailed SIMS U-Pb zircon examination of the Liantuo Formation. Radiometric dates from six tuff/tuffaceous siltstone beds within the Liantuo Formation suggest it was deposited in a time interval of ca. 780-714 Ma, indicating its correlation with the Banxi Group. New ages not only coordinated the age-paleopole contradictions in the Liantuo and Nantuo formations for exploring the evolution history of Yangtze Block during the breakup of Rodinia supercontinent, but also strengthened the viewpoint that the Sturtian glaciation occurred at ca. 715 Ma in at least three paleocontinents of Arabia-Nubia, Laurentia, and South China. Some zircon grains in samples YC20 and 13YCB develop bright domains of ca. 690-680 Ma. These domains have lower total REE, lower trace element contents, and lower Th/U ratios than cores. However, both the bright domains and cores show similar delta O-18 values lower than the normal mantle zircon values. These characteristics suggest that these domains were possibly formed by post-depositional recrystallization. (C) 2015 Elsevier B.V. All rights reserved.
WOS关键词NATURAL REFERENCE MATERIAL ; LOWER BOUNDARY AGE ; NEOPROTEROZOIC GLACIATIONS ; TRACE-ELEMENT ; NANHUA SYSTEM ; CHRONOSTRATIGRAPHIC FRAMEWORK ; CATHAYSIA BLOCKS ; NANTUO FORMATION ; DETRITAL ZIRCON ; RIFT MAGMATISM
WOS研究方向Geology
语种英语
WOS记录号WOS:000355035800008
资助机构Chinese National "973" Project(2013CB835005) ; Chinese National "973" Project(2013CB835005) ; Chinese National "973" Project(2013CB835005) ; Chinese National "973" Project(2013CB835005) ; National Natural Science Foundation of China(41273069) ; National Natural Science Foundation of China(41273069) ; National Natural Science Foundation of China(41273069) ; National Natural Science Foundation of China(41273069) ; Chinese National "973" Project(2013CB835005) ; Chinese National "973" Project(2013CB835005) ; Chinese National "973" Project(2013CB835005) ; Chinese National "973" Project(2013CB835005) ; National Natural Science Foundation of China(41273069) ; National Natural Science Foundation of China(41273069) ; National Natural Science Foundation of China(41273069) ; National Natural Science Foundation of China(41273069)
源URL[http://ir.iggcas.ac.cn/handle/132A11/62498]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Lan, Zhongwu,Li, Xian-Hua,Zhu, Maoyan,et al. Revisiting the Liantuo Formation in Yangtze Block, South China: SIMS U-Pb zircon age constraints and regional and global significance[J]. PRECAMBRIAN RESEARCH,2015,263:123-141.
APA Lan, Zhongwu,Li, Xian-Hua,Zhu, Maoyan,Zhang, Qirui,&Li, Qiu-Li.(2015).Revisiting the Liantuo Formation in Yangtze Block, South China: SIMS U-Pb zircon age constraints and regional and global significance.PRECAMBRIAN RESEARCH,263,123-141.
MLA Lan, Zhongwu,et al."Revisiting the Liantuo Formation in Yangtze Block, South China: SIMS U-Pb zircon age constraints and regional and global significance".PRECAMBRIAN RESEARCH 263(2015):123-141.

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来源：地质与地球物理研究所

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