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	Natural vs. anthropogenic sources supply aeolian dust to the Miaoergou Glacier: Evidence from Sr-Pb isotopes in the eastern Tienshan ice core
	Du, Zhiheng1,3; Xiao, Cunde1,2; Liu, Yaping1; Yang, Jiao1,3; Li, Chuanjin1
刊名	QUATERNARY INTERNATIONAL
	2017-02-12
卷号	430页码:60-70
关键词	Eastern Tienshan ice core Soluble and insoluble dust Dust source Sr-Pb isotopic ratios
ISSN号	1040-6182
DOI	10.1016/j.quaint.2015.11.069
通讯作者	Du, Zhiheng(duzhiheng10@163.com) ; Xiao, Cunde(cdxiao@lzb.ac.cn)
英文摘要	The compositions of Sr and Pb isotopes in the soluble and insoluble dust in six samples from the Miaoergou ice core in eastern Tienshan, China, were measured. The six samples were dated from top to bottom as follows: 2000 AD, 1991 AD, 1983 AD, 1977 AD, 1962 AD and 1958 AD. The Sr-87/Sr-86 ratios in the soluble fraction ranged from 0.709984 to 0.711031. The isotopic ratios of Pb in the soluble and insoluble dust were between 17.962-18.182 and 18.198-18.409 for Pb-206/Pb-207; 15.540-15.606 and 15.560-15.581 for Pb-208/Pb-207; and 37.994-38.173 and 38.179-38.384 for Pb-208/Pb-204, respectively. These isotopic results for insoluble dust allowed us to document the origins of the dust in the Miaoergou Glacier in eastern Tienshan. The major sources of the natural aeolian deposits were the Taklamakan and Gobi deserts. Natural and anthropogenic Pb sources were assessed using a simple ternary model in which deserts, lead ore and coal served as the primary sources of insoluble dust. Lead ore, coal combustion, and the use of leaded gasoline in the surrounding area may represent additional anthropogenic sources of soluble dust. Thus, anthropogenic sources could be further investigated by using the dust-free soluble fractions. The Pb concentration and Pb isotopic compositions from the High Asia ice cores provided distinct evidence of the positive influences of anthropogenic factors associated with industrial development and the prevailing atmospheric circulation patterns in these regions. (C) 2015 Elsevier Ltd and INQUA. All rights reserved.
收录类别	SCI
WOS关键词	ASIAN DUST ; TIBETAN PLATEAU ; WESTERN CHINA ; LEAD EMISSIONS ; GREENLAND ICE ; MINERAL DUST ; SOUTHERN-HEMISPHERE ; MOUNTAIN GLACIERS ; ATMOSPHERIC LEAD ; NORTHERN CHINA
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000397933600008
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557587
专题	寒区旱区环境与工程研究所
通讯作者	Du, Zhiheng; Xiao, Cunde
作者单位	1.Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Meteorol Sci, Inst Climate Syst, China Meteorol Adm, Beijing 100081, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Du, Zhiheng,Xiao, Cunde,Liu, Yaping,et al. Natural vs. anthropogenic sources supply aeolian dust to the Miaoergou Glacier: Evidence from Sr-Pb isotopes in the eastern Tienshan ice core[J]. QUATERNARY INTERNATIONAL,2017,430:60-70.
APA	Du, Zhiheng,Xiao, Cunde,Liu, Yaping,Yang, Jiao,&Li, Chuanjin.(2017).Natural vs. anthropogenic sources supply aeolian dust to the Miaoergou Glacier: Evidence from Sr-Pb isotopes in the eastern Tienshan ice core.QUATERNARY INTERNATIONAL,430,60-70.
MLA	Du, Zhiheng,et al."Natural vs. anthropogenic sources supply aeolian dust to the Miaoergou Glacier: Evidence from Sr-Pb isotopes in the eastern Tienshan ice core".QUATERNARY INTERNATIONAL 430(2017):60-70.

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