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| The 4700 aB.P. volcanic signal detected in Vostok BH8 ice core, Antarctica | |
| 作者姓名： | LIU Leibao KANG Jiancheng Jean R. Petit Jefferson C. Simoes Martine De Angelis |
| 作者单位： | [1]Polar Research Institute of China, Shanghai 200136, China [2]Institute of Environment and Biogeochemistry, Zhejiang University, Hangzhou 310027, China [3]Laboratoire de Glaciologie et Géophysique de l＇Environnement, CNRS, BP 96, Saint Martin d＇Heres, France [4]Laboratório de Pesquisas Antárticas e Glaciológicas, Instituto de Geociencias, UFRGS, Av. Bento Goncalves 9500,91501-970 - Porto Alegre, RS - Brazil [5]Department of Geography, Shanghai Normal University, Shanghai 200234, China |
| 摘 要： | The detailed electrical conductivity measuremerit （ECM）, trace chemical compositions and microparticles concentration analysis are performed for BH8 ice core from the depth of 126.0m to 130.0m at Vostok Station. At depth 128.7m, a volcanic signal 4726 a B.P. is detected. The volcanic sulphate flux is 95.8 kg·km^-2, sulphate peak concentration 1352.8 ng·g^-1, duration time about 10.1 years, comparable with some well-known volcanic events. The results indicate that it seems to be a relatively large scale, long lasting volcanic signal with farther volcanic origin. |
| 关 键 词： | 南极洲 火山岩 电传导率 微粒子 浓度分析 |
| 收稿时间： | 2005-04-20 |
| 修稿时间： | 2005-04-202005-08-05 |
The 4700 aB.P. volcanic signal detected in Vostok BH8 ice core, Antarctica |
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| LIU Leibao KANG Jiancheng Jean R. Petit Jefferson C. Simoes Martine De Angelis.The 4700 aB.P. volcanic signal detected in Vostok BH8 ice core, Antarctica[J].Chinese Science Bulletin,2005,50(22):2636-2639. | |
| Authors: | Leibao Liu Jiancheng Kang Jean R Petit Jefferson C Simões Martine De Angelis |
| Institution: | 1. Polar Research Institute of China, 200136, Shanghai, China 2. Institute of Environment and Biogeochemistry, Zhejiang University, 310027, Hangzhou, China 3. Department of Geography, Shanghai Normal University, 200234, Shanghai, China 4. Laboratoire de Glaciologie et Géophysique de l’Environnement, CNRS, BP 96, Saint Martin d’Hères, France 5. Laboratório de Pesquisas Antárticas e Glaciológicas, Instituto de Geociências, UFRGS, Av. Bento Gon?alves 9500, 91501-970, Porto Alegre, RS, Brazil |
| Abstract: | The detailed electrical conductivity measurement (ECM), trace chemical compositions and microparticles concentration analysis are performed for BH8 ice core from the depth of 126.0m to 130.0m at Vostok Station. At depth 128.7m, a volcanic signal 4726 a B.P. is detected. The volcanic sulphate flux is 95.8 kg·km−2, sulphate peak concentration 1352.8 ng·g−1, duration time about 10.1 years, comparable with some well-known volcanic events. The results indicate that it seems to be a relatively large scale, long lasting vol-canic signal with farther volcanic origin. |
| Keywords: | volcanic eruption ice core record Vostok Antarctica |
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