High Water Contents in Zircons Suggest Water-Fluxed Crustal Melting During Cratonic Destruction

doi:10.1029/2021GL097126

GIG OpenIR

	Yang, Chuan-Mao 1,2,3; Xu, Yi-Gang 1,2,3; Xia, Xiao-Ping 1,2,3; Yang, Jin-Hui 4; Sun, Jin-Feng 2; Zhang, Wan-Feng 1,3; Yang, Qing 1,3; Yang, Ya-Nan 1,3
	High Water Contents in Zircons Suggest Water-Fluxed Crustal Melting During Cratonic Destruction
刊名	GEOPHYSICAL RESEARCH LETTERS
ISSN号	0094-8276
	2022-04-16
卷号	49 期号:7 页码:9
DOI	10.1029/2021GL097126
语种	英语
WOS研究方向	Geology
摘要	Water is essential for the formation of granites, but its origin and role in granite generation (i.e., dehydration vs. water-fluxed melting) remain uncertain. These issues are addressed by combining water abundances and other geochemical indices in zircons from Late Mesozoic granites generated during the destruction of the North China Craton (NCC). The water contents in zircons from the NCC Early Cretaceous granites (763 ppm, median) are much higher than those of the NCC Jurassic granites (424-513 ppm), upper mantle and continental arc magmas (92-477 ppm). More importantly, the higher water contents in the voluminous Early Cretaceous granites also have higher zircon saturation temperatures, epsilon(Hf)(t), and lower delta O-18 values. These observations suggest a predominantly mantle origin for the water, and water-fluxed crustal melting, in which larger water ingression produced more voluminous melts. The high-water flux was likely related to the subduction of the Paleo-Pacific Plate, which ultimately destabilized the NCC.
关键词	zircon water content water-fluxed melting granite genesis mantle origin cratonic destruction North China Craton
WOS记录号	WOS:000778513500001
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.gig.ac.cn/handle/344008/67692
通讯作者	Xu, Yi-Gang
作者单位	1.Chinese Acad Sci, CAS Ctr Excellence Deep Earth Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Peoples R China 2.Chinese Acad Sci, Coll Earth & Palnetary Sci, Beijing, Peoples R China 3.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yang, Chuan-Mao,Xu, Yi-Gang,Xia, Xiao-Ping,et al. High Water Contents in Zircons Suggest Water-Fluxed Crustal Melting During Cratonic Destruction[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49(7):9.
APA	Yang, Chuan-Mao.,Xu, Yi-Gang.,Xia, Xiao-Ping.,Yang, Jin-Hui.,Sun, Jin-Feng.,...&Yang, Ya-Nan.(2022).High Water Contents in Zircons Suggest Water-Fluxed Crustal Melting During Cratonic Destruction.GEOPHYSICAL RESEARCH LETTERS,49(7),9.
MLA	Yang, Chuan-Mao,et al."High Water Contents in Zircons Suggest Water-Fluxed Crustal Melting During Cratonic Destruction".GEOPHYSICAL RESEARCH LETTERS 49.7(2022):9.