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	Mantle-derived helium in foreland basins in Xinjiang, Northwest China
	Xu, Sheng; Zheng, Guodong; Zheng, Jianjing; Zhou, Shixin; Shi, Pilong
	2016
卷号	0期号:0
英文摘要	Hydrocarbon-rich natural gases from the Tarim, Junggar, Turpan-Hami and Santanghu basins in Xinjiang, Northwest China have measured3He/4He ratios from 0.01 to 0.6 times higher than the atmospheric value, indicating 0-7% helium derived from the mantle. The mantle-derived helium is high in foreland basins associated with the Tianshan, Kunlun and Zhayier-Halalate orogenic mountains, but low towards the center of basins. This spatial distribution suggests that the mantle-derived helium originates either from fluids or small scale melts in the upper asthenospheric or lithospheric mantle which have found pathways into the root zones of the major faults defining these mountains, but do not significantly move into the basins themselves. During upward transport to near the surface, the mantle-derived helium is significantly diluted by radiogenic helium produced in the crust. Despite the lack of recent magmatic activity or extensional tectonics within the basins, this pattern shows strong evidence that the major faults play an important role in mantle-derived components degassing from the mantle to the surface. © 2016 Elsevier B.V.
收录类别	EI
语种	英语
WOS记录号	WOS:20165203194903
内容类型	期刊论文
源URL	[http://ir.radi.ac.cn/handle/183411/39681]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
推荐引用方式 GB/T 7714	Xu, Sheng,Zheng, Guodong,Zheng, Jianjing,et al. Mantle-derived helium in foreland basins in Xinjiang, Northwest China[J],2016,0(0).
APA	Xu, Sheng,Zheng, Guodong,Zheng, Jianjing,Zhou, Shixin,&Shi, Pilong.(2016).Mantle-derived helium in foreland basins in Xinjiang, Northwest China.,0(0).
MLA	Xu, Sheng,et al."Mantle-derived helium in foreland basins in Xinjiang, Northwest China".0.0(2016).

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