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	Geochronology of Neoproterozoic syn-rift magmatism in the Yangtze Craton, South China and correlations with other continents: evidence for a mantle superplume that broke up Rodinia
	Li, ZX; Li, XH; Kinny, PD; Wang, J; Zhang, S; Zhou, H
	2003
发表期刊	PRECAMBRIAN RESEARCH
卷号	122期号:1-4,SI页码:85-109
摘要	Neoproterozoic granitic intrusions in South China have traditionally been interpreted as related to orogenesis, marking the cratonisation of the Yangtze Block. However, a number of ca. 830-820 Ma granitoids and mafic-ultramafic intrusions unconformably overlain by Neoproterozoic rift successions have recently been reinterpreted as being related to a mantle plume during the breakup of the supercontinent Rodinia. In this paper, we report SHRIMP zircon U-Pb ages from granitoids and gabbros that are closely related to the Neoproterozoic rifting event, and one age from a volcanic unit in the rift successions. We demonstrate that there were two major phases of widespread bimodal magmatism in South China during the Neoproterozoic. The first one, at ca. 830-795 Ma, started before the continental rift but continued into the first two stages of the rifting. The second one, ca. 780-745 Ma, occurred during the later stages of the rifting. Some co-magmatic malic dykes have rare-earth element and trace element distribution characteristic of continental flood basalts. Similar age patterns of Neoproterozoic anorogenic magmatism are recorded in most other Rodinian continental blocks, such as Australia, India, Madagascar, Seychelles, southern Africa and Laurentia. The widespread occurrence and protracted duration (ca. 85 million years) of such anorogenic magmatism. require a large and sustained heat source. We interpret these magmatism as results of a mantle superplume beneath Rodinia, which was responsible for the breakup of the supercontinent during the Neoproterozoic. (C) 2002 Elsevier Science B.V. All rights reserved.
关键词	South China Rodinia Neoproterozoic magmatism mantle plume superplume
DOI	10.1016/S0301-9268(02)00208-5
语种	英语
ISSN	0301-9268
收录类别	SCI
WOS记录号	WOS:000181989500005
WOS类目	Geosciences, Multidisciplinary
出版者	ELSEVIER SCIENCE BV
出版地	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
引用统计	被引频次：1048[WOS]   [WOS记录]     [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.cug.edu.cn/handle/2XU834YA/279639
专题	教学院系_材料与化学学院
通讯作者	Li, ZX
作者单位	1.Univ Western Australia, Sch Earth & Geog Sci, Tect Special Res Ctr, Crawley, WA 6009, Australia. 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou, Peoples R China. 3.Curtin Univ Technol, Tecton Special Res Ctr, Dept Appl Geol, Perth, WA 6845, Australia. 4.China Geol Survey, Chengdu Inst Geol & Mineral Resources, Chengdu 610082, Peoples R China. 5.China Univ Geosci, Sch Earth & Land Resources, Beijing 10083, Peoples R China. 6.China Univ Geosci, Fac Earth Sci, Wuhan 430074, Hubei, Peoples R China.
推荐引用方式 GB/T 7714	Li, ZX,Li, XH,Kinny, PD,et al. Geochronology of Neoproterozoic syn-rift magmatism in the Yangtze Craton, South China and correlations with other continents: evidence for a mantle superplume that broke up Rodinia[J]. PRECAMBRIAN RESEARCH,2003,122(1-4,SI):85-109.
APA	Li, ZX,Li, XH,Kinny, PD,Wang, J,Zhang, S,&Zhou, H.(2003).Geochronology of Neoproterozoic syn-rift magmatism in the Yangtze Craton, South China and correlations with other continents: evidence for a mantle superplume that broke up Rodinia.PRECAMBRIAN RESEARCH,122(1-4,SI),85-109.
MLA	Li, ZX,et al."Geochronology of Neoproterozoic syn-rift magmatism in the Yangtze Craton, South China and correlations with other continents: evidence for a mantle superplume that broke up Rodinia".PRECAMBRIAN RESEARCH 122.1-4,SI(2003):85-109.

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