气候变化领域集成服务门户(CCPortal): The environmental implications for dust in high-alpine snow and ice cores in Asian mountains

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DOI	10.1016/j.gloplacha.2014.11.007
	The environmental implications for dust in high-alpine snow and ice cores in Asian mountains
	Wu, Guangjian; Zhang, Chenglong; Zhang, Xuelei; Xu, Tianli; Yan, Ni; Gao, Shaopeng
通讯作者	Wu, GJ (通讯作者)
发表日期	2015
ISSN	0921-8181
EISSN	1872-6364
起始页码	22
结束页码	29
卷号	124
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.
关键词	NORTHERN CHINA SR ND DEPOSITION GLACIER DESERT PROVENANCE REE
英文关键词	Asian dust; Ice core; Implication; Element composition
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000349577800003
来源期刊	GLOBAL AND PLANETARY CHANGE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258516
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.
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.
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).