Glacial paleoceanography off the mouth of the Mekong River, southern South China Sea, during the last 500 ka
文献类型：期刊论文
| 作者 | Li, QY ; Zheng, F ; Chen, MH ; Xiang, R ; Qiao, PJ ; Shao, L ; Cheng, XR |
| 刊名 | QUATERNARY RESEARCH
 |
| 出版日期 | 2010 |
| 卷号 | 73期号:3页码:563-572 |
| 关键词 | Late Pleistocene Holocene Glacial cycles Planktonic foraminifera Thermocline Monsoons South China Sea Mekong River mouth |
| ISSN号 | 0033-5894 |
| 通讯作者 | qli01@tongji.edu.cn |
| 中文摘要 | We have analyzed core MD01-2392, similar to 360 km east of the Mekong River mouth in the South China Sea (SCS). Over the past 500 ka, planktonic foraminiferal oxygen-isotopic values are consistently lighter than northern SCS and open-ocean records by up to 0.5 parts per thousand, indicating the influence of run-off from the Mekong River during both glacial and interglacial periods. Carbonate content is higher during interglacials; sedimentation rates were higher during glacials. Increased sedimentation rates since 30 ka imply increased run-off during the last glacial maximum and Holocene Period. Contrary to general experience, in which it is classed as a warm species for temperature estimates, the thermocline-dwelling species Pulleniatina obliquiloculata increased its numbers during glacial periods. This implies an estuarine circulation and even brackish-water caps during glacial periods, reinforcing the sense of strong run-off. In an overall decline of warm water, the thermocline shoaled stepwise, with rapid rises across the glacial terminations. We infer that the southern SCS was opened to an influx of Indian Ocean waters through southern passages at those times of rising sea levels. (C) 2010 University of Washington. Published by Elsevier Inc. All rights reserved. |
| 学科主题 | Geography, Physical; Geosciences, Multidisciplinary |
| 收录类别 | SCI |
| 原文出处 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| WOS记录号 | WOS:000277557200014 |
| 公开日期 | 2011-07-03 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/4324]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 推荐引用方式 GB/T 7714 | Li, QY,Zheng, F,Chen, MH,et al. Glacial paleoceanography off the mouth of the Mekong River, southern South China Sea, during the last 500 ka[J]. QUATERNARY RESEARCH,2010,73(3):563-572. |
| APA | Li, QY.,Zheng, F.,Chen, MH.,Xiang, R.,Qiao, PJ.,...&Cheng, XR.(2010).Glacial paleoceanography off the mouth of the Mekong River, southern South China Sea, during the last 500 ka.QUATERNARY RESEARCH,73(3),563-572. |
| MLA | Li, QY,et al."Glacial paleoceanography off the mouth of the Mekong River, southern South China Sea, during the last 500 ka".QUATERNARY RESEARCH 73.3(2010):563-572. |
入库方式： OAI收割
来源：南海海洋研究所
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