The environmental implications for dust in high-alpine snow and ice cores in Asian mountains
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...
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ftchacadscircees:oai:ir.rcees.ac.cn:311016/32393 2023-05-15T16:39:08+02:00 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 2015-01 http://ir.rcees.ac.cn/handle/311016/32393 unknown GLOBAL AND PLANETARY CHANGE http://ir.rcees.ac.cn/handle/311016/32393 cn.org.cspace.api.content.CopyrightPolicy@23612c Asian Dust Ice Core Implication Element Composition Geography Physical Geosciences Multidisciplinary 期刊论文 2015 ftchacadscircees 2020-12-22T10:22:14Z 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. Report ice core Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences) |
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Open Polar |
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Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences) |
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ftchacadscircees |
language |
unknown |
topic |
Asian Dust Ice Core Implication Element Composition Geography Physical Geosciences Multidisciplinary |
spellingShingle |
Asian Dust Ice Core Implication Element Composition Geography Physical Geosciences Multidisciplinary Wu, Guangjian Zhang, Chenglong Zhang, Xuelei Xu, Tianli Yan, Ni Gao, Shaopeng The environmental implications for dust in high-alpine snow and ice cores in Asian mountains |
topic_facet |
Asian Dust Ice Core Implication Element Composition Geography Physical Geosciences Multidisciplinary |
description |
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. |
format |
Report |
author |
Wu, Guangjian Zhang, Chenglong Zhang, Xuelei Xu, Tianli Yan, Ni Gao, Shaopeng |
author_facet |
Wu, Guangjian Zhang, Chenglong Zhang, Xuelei Xu, Tianli Yan, Ni Gao, Shaopeng |
author_sort |
Wu, Guangjian |
title |
The environmental implications for dust in high-alpine snow and ice cores in Asian mountains |
title_short |
The environmental implications for dust in high-alpine snow and ice cores in Asian mountains |
title_full |
The environmental implications for dust in high-alpine snow and ice cores in Asian mountains |
title_fullStr |
The environmental implications for dust in high-alpine snow and ice cores in Asian mountains |
title_full_unstemmed |
The environmental implications for dust in high-alpine snow and ice cores in Asian mountains |
title_sort |
environmental implications for dust in high-alpine snow and ice cores in asian mountains |
publishDate |
2015 |
url |
http://ir.rcees.ac.cn/handle/311016/32393 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
GLOBAL AND PLANETARY CHANGE http://ir.rcees.ac.cn/handle/311016/32393 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@23612c |
_version_ |
1766029465177030656 |