Holocene environment changes around the Sara Us River, northern China, revealed by optical dating of lacustrine-aeolian sediments
文献类型：期刊论文
| 作者 | Zhao, Hui1; Sheng, Yongwei2; Li, Bo3; Fan, Yuxin4,5 |
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2016-04-15 |
| 卷号 | 120页码:184-191 |
| 关键词 | Environment changes Late Holocene OSL dating Sara Us River |
| ISSN号 | 1367-9120 |
| DOI | 10.1016/j.jseaes.2016.02.002 |
| 通讯作者 | Zhao, Hui(hzhao@lzb.ac.cn) |
| 英文摘要 | The Sara Us River is located along the boundary of the Mu Us Desert and the Chinese Loess Plateau in northern China. The river has cut down through Quaternary sediments creating 70-80 m deep valleys with thick lacustrine/aeolian sequences exposed. We applied optical stimulated luminescence on sediments from a Holocene section of aeolian sand/lacustrine deposits in the top of the river valley. The dating results show that a humid period existed from 7.1 to 2.0 ka ago as evidenced by two layers of peat and lacustrine sediments. However, compared to other published Holocene sections in the Sara Us River valleys close to the section under studying, the local environment experienced very complicated changes during the Holocene. All of the sections recorded a period with drought and/or cold before the Holocene at around 13 ka, and an episode of aridity after about 2 ka ago as evidenced by the layers of aeolian sand. However, the ages of the lacustrine and peat layers in these sections are substantially different. Geomorphological analysis by digital elevation models does not support the existence of a mega lake covering the study area at 2 ka. The intricate environmental changes may have been caused by the meandering of the Sara Us River. Environmental changes also strongly affected human migration in this area, which is documented by Chinese historical records. (C) 2016 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | CENTRAL INNER-MONGOLIA ; MU US ; STIMULATED LUMINESCENCE ; DUNE SANDS ; EAST-ASIA ; SINGLE ; QUARTZ ; CLIMATE ; DESERT ; VEGETATION |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000378455500012 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557234 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, Hui |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90095 USA 3.Univ Wollongong, Sch Earth & Environm Sci, Ctr Archaeol Sci, Wollongong, NSW 2522, Australia 4.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China 5.Lanzhou Univ, Key Lab Mineral Resources Western China, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Hui,Sheng, Yongwei,Li, Bo,et al. Holocene environment changes around the Sara Us River, northern China, revealed by optical dating of lacustrine-aeolian sediments[J]. JOURNAL OF ASIAN EARTH SCIENCES,2016,120:184-191. |
| APA | Zhao, Hui,Sheng, Yongwei,Li, Bo,&Fan, Yuxin.(2016).Holocene environment changes around the Sara Us River, northern China, revealed by optical dating of lacustrine-aeolian sediments.JOURNAL OF ASIAN EARTH SCIENCES,120,184-191. |
| MLA | Zhao, Hui,et al."Holocene environment changes around the Sara Us River, northern China, revealed by optical dating of lacustrine-aeolian sediments".JOURNAL OF ASIAN EARTH SCIENCES 120(2016):184-191. |
入库方式： iSwitch采集
来源：寒区旱区环境与工程研究所
浏览0
下载0
收藏0
其他版本
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。