High water content in primitive continental flood basalts

doi:10.1038/srep25416

CORC > 北京大学 > 地球与空间科学学院

	High water content in primitive continental flood basalts
	Xia, Qun-Ke ; Bi, Yao ; Li, Pei ; Tian, Wei ; Wei, Xun ; Chen, Han-Lin
刊名	SCIENTIFIC REPORTS
	2016
关键词	LARGE IGNEOUS PROVINCE EARTHS UPPER-MANTLE RECYCLED OCEANIC COMPONENTS HOSTED MELT INCLUSIONS NW CHINA RIDGE BASALT QUANTITATIVE-ANALYSIS H2O CONCENTRATIONS TRANSITION ZONE TARIM BASIN
DOI	10.1038/srep25416
英文摘要	As the main constituent of large igneous provinces, the generation of continental flood basalts (CFB) that are characterized by huge eruption volume (>10(5) km(3)) within short time span (<1-3 Ma) is in principle caused by an abnormally high temperature, extended decompression, a certain amount of mafic source rocks (e.g., pyroxenite), or an elevated H2O content in the mantle source. These four factors are not mutually exclusive. There are growing evidences for high temperature, decompression and mafic source rocks, albeit with hot debate. However, there is currently no convincing evidence of high water content in the source of CFB. We retrieved the initial H2O content of the primitive CFB in the early Permian Tarim large igneous province (NW China), using the H2O content of ten early-formed clinopyroxene (cpx) crystals that recorded the composition of the primitive Tarim basaltic melts and the partition coefficient of H2O between cpx and basaltic melt. The arc-like H2O content (4.82 +/- 1.00 wt.%) provides the first clear evidence that H2O plays an important role in the generation of CFB.; National Natural Science Foundation of China [41225005, 41330207]; SCI(E); PubMed; ARTICLE; qkxia@zju.edu.cn; 25416; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/433870]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Xia, Qun-Ke,Bi, Yao,Li, Pei,et al. High water content in primitive continental flood basalts[J]. SCIENTIFIC REPORTS,2016.
APA	Xia, Qun-Ke,Bi, Yao,Li, Pei,Tian, Wei,Wei, Xun,&Chen, Han-Lin.(2016).High water content in primitive continental flood basalts.SCIENTIFIC REPORTS.
MLA	Xia, Qun-Ke,et al."High water content in primitive continental flood basalts".SCIENTIFIC REPORTS (2016).