| Downwind aeolian sediment accumulations associated with lake-level variations of the Qinghai Lake during the Holocene, Northeastern Qinghai-Tibetan Plateau | |
Liu, Xiang-Jun ; Cong, Lu; An, Fuyuan; Miao, Xiaodong; Chongyi, E.
| |
| 2019-01 | |
| 发表期刊 | ENVIRONMENTAL EARTH SCIENCES
 |
| ISSN | 1866-6280 |
| 卷号 | 78期号:1 |
| 摘要 | Many lakes in the Qinghai-Tibetan Plateau (QTP) have aeolian sands distributed in their downwind shores. However, it has been rarely systemically investigated on whether the downwind dune sand and lake evolved in association with each other or they evolved independently. Here we take the well known Qinghai Lake and its downwind sand area as a case study to investigate the issue of water-sand interaction. Grain size, magnetic susceptibility and geochemical data along with optically stimulated luminescence (OSL) ages suggest that the downwind eastern shore sandy lands co-varied with the lake level fluctuations (or lake extension changes) of the Qinghai Lake during the Holocene epoch. During the early Holocene lake lowstands (11-9ka, ka is 1000years), vast areas of exposed lacustrine sediments were eroded by prevailing westerly winds, therefore, causing sand to accumulate at the eastern shore bajada areas along the west piedmonts of the Riyue Mount, and to expand along the Daotang River valley. In contrast, during the mid to late Holocene lake highstands (7-1.2ka), eastern shore dune sands were largely stabilized, and loess accumulated and even paleosol developed, leading to substantial shrinkage of the eastern shore sandy lands. In addition, using GIS tool, we reconstructed the spatial extensions of the lakeduring highstand (Mid-Holocene) and lowstand (Early Holocene), and eastern shore desert range of early Holocene. As a result, this study indicates a close connection between the lakes in QTP and the aeolian sands downwind. |
| DOI | 10.1007/s12665-018-8025-y |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34006 |
| 专题 | 盐湖地质与环境实验室 中国科学院青海盐湖研究所 |
| 推荐引用方式 GB/T 7714 | Liu, Xiang-Jun,Cong, Lu,An, Fuyuan,et al. Downwind aeolian sediment accumulations associated with lake-level variations of the Qinghai Lake during the Holocene, Northeastern Qinghai-Tibetan Plateau[J]. ENVIRONMENTAL EARTH SCIENCES,2019,78(1). |
| APA | Liu, Xiang-Jun,Cong, Lu,An, Fuyuan,Miao, Xiaodong,&Chongyi, E..(2019).Downwind aeolian sediment accumulations associated with lake-level variations of the Qinghai Lake during the Holocene, Northeastern Qinghai-Tibetan Plateau.ENVIRONMENTAL EARTH SCIENCES,78(1). |
| MLA | Liu, Xiang-Jun,et al."Downwind aeolian sediment accumulations associated with lake-level variations of the Qinghai Lake during the Holocene, Northeastern Qinghai-Tibetan Plateau".ENVIRONMENTAL EARTH SCIENCES 78.1(2019). |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Downwind aeolian sed（2038KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论