Glacial-interglacial cycles recorded in clay minerals from the eastern Tibetan Plateau over the last 800 ka and their indications
文献类型：期刊论文
| 作者 | Zhang, Xiaoyan2,3; Zhang, Chunxia1,2; Zhao, Yan3,4; Hu, Bin2,3; Guo, Zhengtang2,3 |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2024-06-06 |
| 卷号 | N/A页码:16 |
| 关键词 | Quaternary Zoige Basin Lacustrine sediments Paleoenvironment Weathering |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-023-1337-2 |
| 英文摘要 | Clay mineral proxies have been widely used to reconstruct changes in provenance and the paleoclimate. However, high-altitude clay mineral indications and long-term and orbital variations have not been fully explored. Herein, we present an 800-ka clay-mineral record from a lacustrine sediment core (ZB13-C2) from the Zoige Basin on the eastern Tibetan Plateau (TP). X-ray diffraction and scanning electron microscopy were used to identify the clay mineral assemblages and their micro-morphological characteristics of core ZB13-C2. The results revealed that the clay minerals in core ZB13-C2 are mainly illite, with small amounts of chlorite, kaolinite, and smectite (including irregular mixed-layers of illite-smectite (I/S) and chlorite-smectite (C/S)). The clay mineral assemblages and proxies exhibit three stages of change, which are mainly controlled by the Zoige watershed range under different climate conditions. The watershed was limited to the southeastern region with altitudes ranging from similar to 3500 to similar to 4200 meters above sea level (m a.s.l.), and glacial-interglacial hydraulic erosion controlled the input of bedrock debris during 800-621 ka BP. It expanded to higher altitudes (similar to 1200 to similar to 4700 m a.s.l.) due to stronger seasonal freeze-thaw weathering without significant glacial-interglacial variations under a cooling and drying climate during 621-100 ka BP. Finally, it expanded to its highest altitudes of similar to 4700 to similar to 5200 m a.s.l. northwest of the watershed after 100 ka BP, and hydraulic erosion increased obviously under a warm climate of the interstadial MIS 3 on the TP. The watershed underwent two major expansions under different climatic conditions at similar to 621 ka and 100 ka BP, with the wet/dry alternation became strong at similar to 621 ka BP. These results reveal that long-term temperature changes and the wet/dry alternation at high altitudes controlled the watershed range and degree of the physical erosion, and that the indications of clay minerals should be carefully clarified before they are used as climate indicators, especially on the TP. |
| WOS关键词 | SUMMER-MONSOON ; QAIDAM BASIN ; TRIASSIC FLYSCH ; ZOIGE BASIN ; TECTONOTHERMAL EVOLUTION ; NORTHWEST CHINA ; WESTERLY JET ; SEDIMENTS ; CLIMATE ; LAKE |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[42072209] ; National Key Research and Development Program of China[2022YFF0800800] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001242777300002 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206714]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Zhang, Chunxia |
| 作者单位 | 1.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao 266590, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiaoyan,Zhang, Chunxia,Zhao, Yan,et al. Glacial-interglacial cycles recorded in clay minerals from the eastern Tibetan Plateau over the last 800 ka and their indications[J]. SCIENCE CHINA-EARTH SCIENCES,2024,N/A:16. |
| APA | Zhang, Xiaoyan,Zhang, Chunxia,Zhao, Yan,Hu, Bin,&Guo, Zhengtang.(2024).Glacial-interglacial cycles recorded in clay minerals from the eastern Tibetan Plateau over the last 800 ka and their indications.SCIENCE CHINA-EARTH SCIENCES,N/A,16. |
| MLA | Zhang, Xiaoyan,et al."Glacial-interglacial cycles recorded in clay minerals from the eastern Tibetan Plateau over the last 800 ka and their indications".SCIENCE CHINA-EARTH SCIENCES N/A(2024):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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。