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DOI | 10.1016/i.scitotenv.2014.03.120 |
Seasonal variations in the sources of natural and anthropogenic lead deposited at the East Rongbuk Glacier in the high-altitude Himalayas | |
Burn-Nunes, Laurie1; Vallelonga, Paul2; Lee, Khanghyun3; Hong, Sungmin4; Burton, Graeme1; Hou, Shugui5; Moy, Andrew6,7; Edwards, Ross1; Loss, Robert1; Rosman, Kevin1 | |
通讯作者 | Burn-Nunes, Laurie |
来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
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ISSN | 0048-9697 |
EISSN | 1879-1026 |
出版年 | 2014 |
卷号 | 487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 similar 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/filar 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. (C) 2014 Elsevier B.V. All rights reserved. |
英文关键词 | Lead isotope Ice core Snow Dust Pollution Northern Hemisphere |
类型 | Article |
语种 | 英语 |
国家 | Australia ; Denmark ; South Korea ; Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000337259100045 |
WOS关键词 | ISOTOPIC SOURCE SIGNATURES ; MT. QOMOLANGMA EVEREST ; ICE CORE ; ELEMENTAL COMPOSITION ; ATMOSPHERIC LEAD ; TIBETAN PLATEAU ; GREENLAND ICE ; PB ; SNOW ; RATIOS |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | 南京大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/184876 |
作者单位 | 1.Curtin Univ, Dept Imaging & Appl Phys, Perth, WA 6845, Australia; 2.Univ Copenhagen, Niels Bohr Inst, Ctr Ice & Climate, DK-2100 Copenhagen O, Denmark; 3.Natl Inst Environm Res, Environm Measurement & Anal Ctr, Inchon 404170, South Korea; 4.Inha Univ, Dept Ocean Sci, Inchon 402751, South Korea; 5.Nanjing Univ, Sch Geog & Oceanog Sci, Minist Educ, Key Lab Coast & Isl Dev, Nanjing 210093, Jiangsu, Peoples R China; 6.Australian Antarctic Div, Dept Environm, Kingston, Tas 7050, Australia; 7.Univ Tasmania, Antarctic Climate & Ecosyst Cooperat Res Ctr, Hobart, Tas 7001, Australia |
推荐引用方式 GB/T 7714 | Burn-Nunes, Laurie,Vallelonga, Paul,Lee, Khanghyun,et al. Seasonal variations in the sources of natural and anthropogenic lead deposited at the East Rongbuk Glacier in the high-altitude Himalayas[J]. 南京大学,2014,487:407-419. |
APA | Burn-Nunes, Laurie.,Vallelonga, Paul.,Lee, Khanghyun.,Hong, Sungmin.,Burton, Graeme.,...&Rosman, Kevin.(2014).Seasonal variations in the sources of natural and anthropogenic lead deposited at the East Rongbuk Glacier in the high-altitude Himalayas.SCIENCE OF THE TOTAL ENVIRONMENT,487,407-419. |
MLA | Burn-Nunes, Laurie,et al."Seasonal variations in the sources of natural and anthropogenic lead deposited at the East Rongbuk Glacier in the high-altitude Himalayas".SCIENCE OF THE TOTAL ENVIRONMENT 487(2014):407-419. |
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