Mesoproterozoic mafic and carbonatitic dykes from the northern margin of the North China Craton: Implications for the final breakup of Columbia supercontinent

doi:10.1016/j.tecto.2010.11.015

	Mesoproterozoic mafic and carbonatitic dykes from the northern margin of the North China Craton: Implications for the final breakup of Columbia supercontinent
	Yang, Kui-Feng 1; Fan, Hong-Rui 1; Santosh, M.2; Hu, Fang-Fang 1; Wang, Kai-Yi 1
刊名	TECTONOPHYSICS
	2011-01-31
卷号	498 期号:1-4 页码:1-10
关键词	Mafic-carbonatitic Dykes Rift Tectonics Columbia Supercontinent Mesoproterozoic North China Craton Bayan Obo
ISSN号	0040-1951
DOI	10.1016/j.tecto.2010.11.015
文献子类	Article
英文摘要	The North China Craton (NCC) has figured prominently in recent reconstructions on the Paleoproterozoic supercontinent Columbia. Here we report abundant carbonatitic and mafic dykes from around the giant Bayan Obo rare earth element deposit in the northern margin of the NCC, and present geochemical and isotope geochronological data. The carbonatite (1354 +/- 59 Ma) and mafic dykes (1227 +/- 60 Ma) have comparable whole rock Sm-Nd isochron ages and Sr-Nd isotope compositions, suggesting a common source characteristic. Their geochemical characters including major and trace elements as well as REE patterns also attest to a common tectonic environment of magma generation and emplacement within a continental margin rift. The extensive mafic and carbonatitic magmatisms are associated with an extensional event that resulted in the formation of the Bayan Obo rift in the northern margin of the NCC, which we correlate with the final stages of fragmentation of the Columbia supercontinent amalgam. (c) 2010 Elsevier B.V. All rights reserved.
WOS关键词	ULTRAHIGH-TEMPERATURE METAMORPHISM ; K-AR AGES ; VOLCANIC-ROCKS ; MANTLE SOURCE ; ZIRCON AGES ; PETROGENETIC IMPLICATIONS ; CHEMICAL CLASSIFICATION ; ISOTOPIC SYSTEMATICS ; SOUTH GREENLAND ; GARDAR PROVINCE
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000287438400001
资助机构	State Key Basic Research Development Program of China(2006CB403503) ; State Key Basic Research Development Program of China(2006CB403503) ; National Natural Science Foundation of China(40625010 ; National Natural Science Foundation of China(40625010 ; 40902028) ; 40902028) ; State Key Basic Research Development Program of China(2006CB403503) ; State Key Basic Research Development Program of China(2006CB403503) ; National Natural Science Foundation of China(40625010 ; National Natural Science Foundation of China(40625010 ; 40902028) ; 40902028) ; State Key Basic Research Development Program of China(2006CB403503) ; State Key Basic Research Development Program of China(2006CB403503) ; National Natural Science Foundation of China(40625010 ; National Natural Science Foundation of China(40625010 ; 40902028) ; 40902028) ; State Key Basic Research Development Program of China(2006CB403503) ; State Key Basic Research Development Program of China(2006CB403503) ; National Natural Science Foundation of China(40625010 ; National Natural Science Foundation of China(40625010 ; 40902028) ; 40902028)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/73900]
专题	中国科学院地质与地球物理研究所
通讯作者	Fan, Hong-Rui
作者单位	1.Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Kochi Univ, Fac Sci, Div Interdsciplinaly Sci, Kochi 7808520, Japan
推荐引用方式 GB/T 7714	Yang, Kui-Feng,Fan, Hong-Rui,Santosh, M.,et al. Mesoproterozoic mafic and carbonatitic dykes from the northern margin of the North China Craton: Implications for the final breakup of Columbia supercontinent[J]. TECTONOPHYSICS,2011,498(1-4):1-10.
APA	Yang, Kui-Feng,Fan, Hong-Rui,Santosh, M.,Hu, Fang-Fang,&Wang, Kai-Yi.(2011).Mesoproterozoic mafic and carbonatitic dykes from the northern margin of the North China Craton: Implications for the final breakup of Columbia supercontinent.TECTONOPHYSICS,498(1-4),1-10.
MLA	Yang, Kui-Feng,et al."Mesoproterozoic mafic and carbonatitic dykes from the northern margin of the North China Craton: Implications for the final breakup of Columbia supercontinent".TECTONOPHYSICS 498.1-4(2011):1-10.