Seasonal variations in the sources of natural and anthropogenic lead deposited at the East Rongbuk Glacier in the high-altitude Himalayas (EI)
文献类型：期刊论文
| 作者 | Burn-Nunes L. ; Vallelonga P. ; Lee K. ; Hong S. ; Burton G. ; Hou S. ; Moy A. ; Edwards R. ; Loss R. ; Rosman K. |
| 刊名 | Science of the Total Environment
 |
| 出版日期 | 2014 |
| 卷号 | 487期号:1页码:407-419 |
| 英文摘要 | Lead (Pb) isotopic compositions and concentrations, and barium (Ba) and indium (In) concentrations have been analysed at sub-annual resolution in three sections from a . 110. m ice core dated to the 18th and 20th centuries, as well as snow pit samples dated to 2004/2005, recovered from the East Rongbuk Glacier in the high-altitude Himalayas. Ice core sections indicate that atmospheric chemistry prior to ~. 1953. was controlled by mineral dust inputs, with no discernible volcanic or anthropogenic contributions. Eighteenth century monsoon ice core chemistry is indicative of dominant contributions from local Himalayan sources; non-monsoon ice core chemistry is linked to contributions from local (Himalayan), regional (Indian/Thar Desert) and long-range (North Africa, Central Asia) sources. Twentieth century monsoon and non-monsoon ice core data demonstrate similar seasonal sources of mineral dust, however with a transition to less-radiogenic isotopic signatures that suggests local and regional climate/environmental change. The snow pit record demonstrates natural and anthropogenic contributions during both seasons, with increased anthropogenic influence during non-monsoon times. Monsoon anthropogenic inputs are most likely sourced to South/South-East Asia and/or India, whereas non-monsoon anthropogenic inputs are most likely sourced to India and Central Asia. 2014 Elsevier B.V. |
| 收录类别 | EI |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.casnw.net/handle/362004/25174]  |
| 专题 | 寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文 |
| 推荐引用方式 GB/T 7714 | Burn-Nunes L.,Vallelonga P.,Lee K.,et al. Seasonal variations in the sources of natural and anthropogenic lead deposited at the East Rongbuk Glacier in the high-altitude Himalayas (EI)[J]. Science of the Total Environment,2014,487(1):407-419. |
| APA | Burn-Nunes L..,Vallelonga P..,Lee K..,Hong S..,Burton G..,...&Rosman K..(2014).Seasonal variations in the sources of natural and anthropogenic lead deposited at the East Rongbuk Glacier in the high-altitude Himalayas (EI).Science of the Total Environment,487(1),407-419. |
| MLA | Burn-Nunes L.,et al."Seasonal variations in the sources of natural and anthropogenic lead deposited at the East Rongbuk Glacier in the high-altitude Himalayas (EI)".Science of the Total Environment 487.1(2014):407-419. |
入库方式： OAI收割
来源：寒区旱区环境与工程研究所
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