| Geological record of meltwater events at Qinghai Lake, China from the past 40 ka | |
| Zhou, Weijian1,2,3,4; Liu, Taibei1,6; Wang, Hao1,2,3,4; An, Zhisheng1,5; Cheng, Peng1,2,3,4; Zhu, Yizhi1,2,3,4; Burr, G. S.1,2,3,4 | |
| 2016-10-01 | |
| 发表期刊 | QUATERNARY SCIENCE REVIEWS
 |
| 卷号 | 149期号:2016页码:279-287 |
| 文章类型 | Article |
| 摘要 | We report here on a previously unpublished sediment core from Qinghai Lake, China, that preserves a continuous record of sedimentation for the past 40 ka. A striking feature of the record is a set of distinct meltwater events recorded at 35, 19 and 14 ka respectively. These events are manifest as distinct pulses of relatively old organic radiocarbon in the sediments. We interpret these as a signal of glacial melting in the Qinghai Lake watershed. The meltwater signals are closely correlated to temperature and precipitation records associated with deglaciation. The events at 19 ka and 14 ka correspond to well-established high latitude Melt Water Pulse (MWP) events during Marine Isotope Stage (MIS) 2, and the 35 ka event corresponds to a period of pervasive high lake levels in western China during late MIS 3. We interpret these anomalous dates as the result of relatively old carbon that was destabilized by the glaciers, and released into the lake as the glaciers melted. The data indicate that this process takes thousands of years. We expect that the approach employed here to identify these events is generally applicable to any lake system with a significant glacial meltwater component. (C) 2016 Elsevier Ltd. All rights reserved. |
| 关键词 | Lacustrine Record Radiocarbon Dating Total Organic Carbon Meltwater Event Old Carbon Effect |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.quascirev.2016.08.005 |
| 关键词[WOS] | NORTHEASTERN TIBETAN PLATEAU ; ATMOSPHERIC CIRCULATION ; STEPPED-COMBUSTION ; LAST DEGLACIATION ; ASIAN MONSOON ; CLIMATE ; BE-10 ; PRECIPITATION ; VARIABILITY ; HOLOCENE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000383825400019 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5684 |
| 专题 | 加速器质谱中心 |
| 作者单位 | 1.Chinese Acad Sci IEECAS, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.IEECAS, Xian AMS Ctr, Xian 710061, Peoples R China 3.Xi An Jiao Tong Univ, Xian 710061, Peoples R China 4.Prov Key Lab, Xian 710061, Peoples R China 5.Beijing Normal Univ, Beijing 100875, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Weijian,Liu, Taibei,Wang, Hao,et al. Geological record of meltwater events at Qinghai Lake, China from the past 40 ka[J]. QUATERNARY SCIENCE REVIEWS,2016,149(2016):279-287. |
| APA | Zhou, Weijian.,Liu, Taibei.,Wang, Hao.,An, Zhisheng.,Cheng, Peng.,...&Burr, G. S..(2016).Geological record of meltwater events at Qinghai Lake, China from the past 40 ka.QUATERNARY SCIENCE REVIEWS,149(2016),279-287. |
| MLA | Zhou, Weijian,et al."Geological record of meltwater events at Qinghai Lake, China from the past 40 ka".QUATERNARY SCIENCE REVIEWS 149.2016(2016):279-287. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Geological record of（2997KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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