Arid
DOI10.1016/j.gloplacha.2014.11.007
The environmental implications for dust in high-alpine snow and ice cores in Asian mountains
Wu, Guangjian1,2; Zhang, Chenglong3; Zhang, Xuelei4; Xu, Tianli1,5; Yan, Ni1,5; Gao, Shaopeng1
通讯作者Wu, Guangjian
来源期刊GLOBAL AND PLANETARY CHANGE
ISSN0921-8181
EISSN1872-6364
出版年2015
卷号124页码:22-29
英文摘要

Dust in ice cores is an excellent proxy for atmospheric dust and can reveal long-term dust history, but the relative contribution from high mountains close to Asian deserts, such as the Tibetan Plateau, remains uncertain. Here we show that dust from high-alpine snow collected from Eastern Tien Shan (Tian Shan), Eastern Pamirs (Muztagata), and Qilian Shan displays a different geochemical composition (e.g. rare earth elements, REEs) to adjacent moraines and neighboring surface soils, but is similar in composition to the upwind remote arid regions. For high-alpine snow dust, the local contribution from moraines and surface soils is minor, with the major source being the Asian deserts. The results have revealed that the snow dust is representative of mid- and upper troposphere dust from Asian deserts, and demonstrates a weak event-based discrepancy but a strong concentration-independent uniformity in composition in the long-term, and confirm the regional environmental implication for the paleo-climatic records from ice cores. (C) 2014 Elsevier B.V. All rights reserved.


英文关键词Asian dust Ice core Implication Element composition
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000349577800003
WOS关键词NORTHERN CHINA ; SR ; ND ; DEPOSITION ; GLACIER ; DESERT ; PROVENANCE ; REE
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
来源机构中国科学院青藏高原研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/187569
作者单位1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China;
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
3.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China;
4.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Jilin, Peoples R China;
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Wu, Guangjian,Zhang, Chenglong,Zhang, Xuelei,et al. The environmental implications for dust in high-alpine snow and ice cores in Asian mountains[J]. 中国科学院青藏高原研究所,2015,124:22-29.
APA Wu, Guangjian,Zhang, Chenglong,Zhang, Xuelei,Xu, Tianli,Yan, Ni,&Gao, Shaopeng.(2015).The environmental implications for dust in high-alpine snow and ice cores in Asian mountains.GLOBAL AND PLANETARY CHANGE,124,22-29.
MLA Wu, Guangjian,et al."The environmental implications for dust in high-alpine snow and ice cores in Asian mountains".GLOBAL AND PLANETARY CHANGE 124(2015):22-29.
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