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DOI | 10.1016/j.atmosres.2009.06.005 |
Rare earth elements in an ice core from Mt. Everest: Seasonal variations and potential sources | |
Zhang, Qianggong1; Kang, Shichang1,2; Kaspari, Susan3,4; Li, Chaoliu1; Qin, Dahe2; Mayewski, Paul A.3,4; Hou, Shugui2 | |
通讯作者 | Kang, Shichang |
来源期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2009 |
卷号 | 94期号:2页码:300-312 |
英文摘要 | Rare earth element (REE) concentrations in ice samples from the upper 8.4 m of a Mt. Everest ice core retrieved from the col of the East Rongbuk Glacier (28.03 degrees N, 86.96 degrees E, 6518 ma.s.l.) on the northeast ridge of Mt. Everest in September 2002 are presented. REEs display large seasonal variations, with high concentrations in the non-monsoon season and low concentrations in the summer monsoon season. This seasonality is useful for ice core dating. When normalized to a shale standard, the Mt. Everest REEs exhibit a consistent shale-like pattern with a slight enrichment of middle REEs during both seasons. However, individual monsoon REE patterns display differences, possibly resulting from diversified sources. Non-monsoon REE patterns are stable and are associated with the westerlies. Investigation of potential sources for the Everest REEs suggests an absence of anthropogenic contributions and minimal input from local provenances. REEs in Mt. Everest samples are most likely representative of a stable well-mixed REE background of the upper troposphere consisting of a mixture of aerosols transported by the atmospheric circulation from the west windward and regions such as the Thar Desert, West Asia, the Sahara Desert and other uncertain provenances. (C) 2009 Elsevier B.V. All rights reserved. |
英文关键词 | Ice core Rare earth elements (REEs) Seasonal variations Potential sources Mt. Everest |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000270119400014 |
WOS关键词 | LONG-RANGE TRANSPORT ; CHEMICAL-COMPOSITION ; TIBETAN PLATEAU ; MINERAL DUST ; ORGANOCHLORINE PESTICIDES ; ATMOSPHERIC CIRCULATION ; QOMOLANGMA EVEREST ; FRESHSNOW SAMPLES ; RONGBUK GLACIER ; TRACE-ELEMENTS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/2XILL650/159900 |
作者单位 | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100085, Peoples R China; 2.Chinese Acad Sci, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; 3.Univ Maine, Climate Change Inst, Orono, ME 04469 USA; 4.Univ Maine, Dept Earth Sci, Orono, ME 04469 USA |
推荐引用方式 GB/T 7714 | Zhang, Qianggong,Kang, Shichang,Kaspari, Susan,et al. Rare earth elements in an ice core from Mt. Everest: Seasonal variations and potential sources[J]. 中国科学院青藏高原研究所,2009,94(2):300-312. |
APA | Zhang, Qianggong.,Kang, Shichang.,Kaspari, Susan.,Li, Chaoliu.,Qin, Dahe.,...&Hou, Shugui.(2009).Rare earth elements in an ice core from Mt. Everest: Seasonal variations and potential sources.ATMOSPHERIC RESEARCH,94(2),300-312. |
MLA | Zhang, Qianggong,et al."Rare earth elements in an ice core from Mt. Everest: Seasonal variations and potential sources".ATMOSPHERIC RESEARCH 94.2(2009):300-312. |
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