干旱区生态环境知识资源中心(Arid): Dust provenance in Pan-third pole modern glacierized regions: What is the regional source?

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DOI	10.1016/j.envpol.2019.04.068
	Dust provenance in Pan-third pole modern glacierized regions: What is the regional source?
	Du, Zhiheng 1; Xiao, Cunde 2; Wang, Yuzhe 3; Liu, Shiwei 1; Li, Shutong 1
通讯作者	Xiao, Cunde
来源期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
EISSN	1873-6424
出版年	2019
卷号	250 页码:762-772
英文摘要	To differentiate the source of aeolian dust between the desert sources from Pan-third pole and high mountain glaciers, therefore, we investigated the spatial variability of aeolian dust sources in the Pan-third polar region. The question of whether such changes reflect variable transport pathways from a unique source in the western China area was addressed. That is, the Sr-Nd radiogenic isotope composition of modern desert samples do not support the hypothesis of a single dust provenance at higher elevation mountain glaciers by long-distance transport; regional sources also play a significant role. Based on previous studies and the data from this study, the five isotopic regions were divided, which are controlled by the geological characteristics in western China. The results suggest that mineral dust deposited into the high-mountain glaciers originated from the free ice region because of glacier melting and the physical and chemical erosion of rocks from the surrounding mountains by local wind systems. The Pb isotopic data further demonstrated that natural dust is the source of Pb for the high-mountain glaciers of Pan-third pole. These results provide an exhaustive documentation of the isotopic signature of the regional dust reaching the glacier regions. (C) 2019 Published by Elsevier Ltd.
英文关键词	Chinese deserts Sr-Nd-Pb isotopes Dust source Laohugou glacier No.12 Tibet plateau
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000471088200082
WOS关键词	LEAD ISOTOPIC COMPOSITION ; ASIAN DUST ; ICE CORE ; MIAOERGOU GLACIER ; MOUNTAIN GLACIERS ; ATMOSPHERIC LEAD ; AEOLIAN DUST ; SR ; ND ; CHINA
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215492
作者单位	1.Chinese Acad Sci, State Key Lab Ctyospher Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; 2.Beijing Normal Univ, State Key Lab Land Surface Proc & Resource Ecol, Beijing 100875, 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,Wang, Yuzhe,et al. Dust provenance in Pan-third pole modern glacierized regions: What is the regional source?[J]. 北京师范大学,2019,250:762-772.
APA	Du, Zhiheng,Xiao, Cunde,Wang, Yuzhe,Liu, Shiwei,&Li, Shutong.(2019).Dust provenance in Pan-third pole modern glacierized regions: What is the regional source?.ENVIRONMENTAL POLLUTION,250,762-772.
MLA	Du, Zhiheng,et al."Dust provenance in Pan-third pole modern glacierized regions: What is the regional source?".ENVIRONMENTAL POLLUTION 250(2019):762-772.