Sedimentary records of a palaeo-lake in the middle Yarlung Tsangpo: Implications for terrace genesis and outburst flooding
文献类型：期刊论文
| 作者 | Chen, F (Chen, Feng)1,3; Feng, JL (Feng, Jin-Liang)1; Hu, HP (Hu, Hai-Ping)1,2 |
| 刊名 | QUATERNARY SCIENCE REVIEWS
 |
| 出版日期 | 2018-07-15 |
| 卷号 | 192期号:0页码:135-148 |
| 关键词 | C-14 YR BP YOUNGER DRYAS TIBETAN-PLATEAU DAMMED LAKE LATE PLEISTOCENE NORTHERN-HEMISPHERE LOESS SEDIMENTATION CHANNELED SCABLANDS SOUTHEASTERN TIBET OCEAN CIRCULATION |
| ISSN号 | 0277-3791 |
| DOI | 10.1016/j.quascirev.2018.05.037 |
| 英文摘要 | The middle reaches region of the Yarlung Tsangpo in the southern Tibetan Plateau consist of broad valley reaches, alternating with gorges, which were easily dammed by glaciers and/or glacial moraines during the last glacial period. We investigated three palaeo-lake sedimentary sequences on terraces located in the broad Xigaze valley reach and the Dazhuka-Yueju gorge in the middle reaches of the Yarlung Tsangpo. We found that the altitude of the palaeo-lake was 3811 m above sea level, while its minimum area and volume were similar to 679 km(2) and similar to 22 km(3), respectively. The palaeo-lake was formed during the period from about 30.2 to 32.3 cal. kyr BP, and it failed at about 13.2 cal. kyr BP. The dam was possibly located at the eastern end of the Dazhuka-Yueju gorge and may have been a glacier and/or a moraine during the late part of the last glacial. The failure of the dam and related flooding from the Dazhuka-Yueju gorge probably triggered a chain reaction of dam failures downstream, forming a megaflood. Terrace genesis and valley evolution in the investigated region can be divided into four phases: Phase I (>32.3 cal. kyr BP), river occupation; Phase II (<32.3-13.2 cal. kyr BP), palaeo-lake occupation; Phase III (after 13.2 cal. kyr BP), erosion and aeolian deposition; Phase IV, modern downward incision. (C) 2018 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000438179800010 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.itpcas.ac.cn/handle/131C11/8597]  |
| 专题 | 青藏高原研究所_图书馆 |
| 作者单位 | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China; 2.East China Univ Technol, Sch Earth Sci, Nanchang 330013, Jiangxi, Peoples R China; 3.Shanxi Univ Finance & Econ, Dept Environm Econ, Taiyuan 030006, Shanxi, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Chen, F ,Feng, JL ,Hu, HP . Sedimentary records of a palaeo-lake in the middle Yarlung Tsangpo: Implications for terrace genesis and outburst flooding[J]. QUATERNARY SCIENCE REVIEWS,2018,192(0):135-148. |
| APA | Chen, F ,Feng, JL ,&Hu, HP .(2018).Sedimentary records of a palaeo-lake in the middle Yarlung Tsangpo: Implications for terrace genesis and outburst flooding.QUATERNARY SCIENCE REVIEWS,192(0),135-148. |
| MLA | Chen, F ,et al."Sedimentary records of a palaeo-lake in the middle Yarlung Tsangpo: Implications for terrace genesis and outburst flooding".QUATERNARY SCIENCE REVIEWS 192.0(2018):135-148. |
入库方式： OAI收割
来源：青藏高原研究所
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