Zircon U-Pb SHRIMP dating for the volcanic rocks of the Xiong'er Group: Constraints on the initial formation age of the cover of the North China Craton

doi:10.1360/04wd0065

	Zircon U-Pb SHRIMP dating for the volcanic rocks of the Xiong'er Group: Constraints on the initial formation age of the cover of the North China Craton
	Zhao, TP ; Zhai, MG ; Xia, B ; Li, HM ; Zhang, YX ; Wan, YS
刊名	CHINESE SCIENCE BULLETIN
	2004-12-01
卷号	49 期号:23 页码:2495-2502
关键词	Xiong'er Group volcanic rocks zircon U-PbSHRIMP age Proterozoic North China Craton
ISSN号	1001-6538
DOI	10.1360/04wd0065
文献子类	Article
英文摘要	The volcanic rocks of the Xiong'er Group occur widely in the southern part of the North China Craton, which mark the beginning of the cover in the southern part of the North China Craton. The age of the volcanic rocks is thus crucial to understand the tectonic regime and evolutionary history of the North China Craton in the Proterozoic age. Zircons from five volcanic rocks and intrusions were dated by U-Pb SHRIMP method. The results indicate that the Xiong'er Group formed in 1.80-1.75 Ga of Paleo-Proterozoic. Since the Xiong'er Group formed earlier than the Changcheng System, the earliest rocks in the Changcheng System is therefore assumed to be formed in 1.75 Ga. A thermal-tectonic event of ca. 1.84 Ga is indicated by new zircon U-Pb SHRIMP ages in the southern part of the North China Craton. The volcanic rocks of the Xiong'er Group thus represent the initial magmatism of the Paleo-Proterozoic breakup of the North China Craton. Numerous inherited zircons in the volcanic rocks mainly formed in similar to2.20 Ga, indicating that the source magma of the volcanic rocks may be derived from the similar to2.20 Ga crust, or from a mantle magma with significant contamination of the similar to2.20 Ga crust.
WOS关键词	AREA ; SUPERCONTINENT ; COLUMBIA
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000227078400015
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/79352]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhao, TP
作者单位	1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Tianjin Inst Geol & Resource, Tianjin 300170, Peoples R China 4.Geol Survey Henan Province, Pingdingshan 467021, Peoples R China 5.China Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Zhao, TP,Zhai, MG,Xia, B,et al. Zircon U-Pb SHRIMP dating for the volcanic rocks of the Xiong'er Group: Constraints on the initial formation age of the cover of the North China Craton[J]. CHINESE SCIENCE BULLETIN,2004,49(23):2495-2502.
APA	Zhao, TP,Zhai, MG,Xia, B,Li, HM,Zhang, YX,&Wan, YS.(2004).Zircon U-Pb SHRIMP dating for the volcanic rocks of the Xiong'er Group: Constraints on the initial formation age of the cover of the North China Craton.CHINESE SCIENCE BULLETIN,49(23),2495-2502.
MLA	Zhao, TP,et al."Zircon U-Pb SHRIMP dating for the volcanic rocks of the Xiong'er Group: Constraints on the initial formation age of the cover of the North China Craton".CHINESE SCIENCE BULLETIN 49.23(2004):2495-2502.