干旱区生态环境知识资源中心(Arid): Discovery of Mass Independent Oxygen Isotopic Compositions in Superscale Nitrate Mineral Deposits from Turpan-Hami Basin, Xinjiang, China and Its Significance

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	Discovery of Mass Independent Oxygen Isotopic Compositions in Superscale Nitrate Mineral Deposits from Turpan-Hami Basin, Xinjiang, China and Its Significance
	Li Yanhe; Qin Yan; Liu Feng; Hou Kejun; Wan Defang
来源期刊	Acta Geologica Sinica
ISSN	1000-9515
出版年	2010
卷号	84 期号:6 页码:1514-1519
英文摘要	The Turpan-Hami Basin in eastern Xinjiang is one of the driest regions on Earth and a premier environment to form and preserve nitrate. A large nitrate ore field in this basin was found recently. It is estimated there are about 2.5 billion tons of resources of nitrate, and the amount is as much as the Atacama Desert super-scale nitrate deposit in Chile. Nitrate is one of a few minerals with mass-independent fractionation (MIF), and the oxygen isotope MIF is an effective method to determine the source of nitrate. The delta~(17)O, delta~(18)O of nitrate were measured by fluorination and thermal decomposition method. The date indicated that this is the first time that oxygen isotope MIF has been located in inland nitrate minerals. The results obtained by two methods are similar, △~(17)0=delta~(17)0-0.52xdelta~(18)0=12-17. The experiment and observation data proved that oxygen isotope MIF of nitrate are the result of photochemical reactions in the troposphere and stratosphere. Thus, evidence from MIF oxygen isotopic compositions indicate that long term atmospheric deposition of nitrate aerosol particles produced by photochemical reactions is the source of the deposits
英文关键词	nitrate deposit mass-independent fractionation of oxygen isotope Turpan-Hami Basin Xinjiang
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Geology
CSCD记录号	CSCD:4075588
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335078
作者单位	Li Yanhe, Institute of Mineral Resource, the Chinese Academy of Geological Sciences, Key Laboratory of Isotope Geology, Ministry of Land and Resources, Beijing 100037, China.; Hou Kejun, Institute of Mineral Resource, the Chinese Academy of Geological Sciences, Key Laboratory of Isotope Geology, Ministry of Land and Resources, Beijing 100037, China.; Wan Defang, Institute of Mineral Resource, the Chinese Academy of Geological Sciences, Key Laboratory of Isotope Geology, Ministry of Land and Resources, Beijing 100037, China.; Qin Yan, Institute of Mineral Resource, the Chinese Academy of Geological Sciences, Beijing 100037, China.; Liu Feng, Institute of Mineral Resource, the Chinese Academy of Geological Sciences, Beijing 100037, China.
推荐引用方式 GB/T 7714	Li Yanhe,Qin Yan,Liu Feng,et al. Discovery of Mass Independent Oxygen Isotopic Compositions in Superscale Nitrate Mineral Deposits from Turpan-Hami Basin, Xinjiang, China and Its Significance[J],2010,84(6):1514-1519.
APA	Li Yanhe,Qin Yan,Liu Feng,Hou Kejun,&Wan Defang.(2010).Discovery of Mass Independent Oxygen Isotopic Compositions in Superscale Nitrate Mineral Deposits from Turpan-Hami Basin, Xinjiang, China and Its Significance.Acta Geologica Sinica,84(6),1514-1519.
MLA	Li Yanhe,et al."Discovery of Mass Independent Oxygen Isotopic Compositions in Superscale Nitrate Mineral Deposits from Turpan-Hami Basin, Xinjiang, China and Its Significance".Acta Geologica Sinica 84.6(2010):1514-1519.