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  4. 山地灾害与地表过程重点实验室
Quartz OSL chronology of the loess deposits in the Western Qinling Mountains, China, and their palaeoenvironmental implications since the Last Glacial period

文献类型：期刊论文

作者Yang Shengli2; Liu Nannan2; Li Dongxue2; Cheng Ting2; Liu Weiming1; Li Shuai2; Chen Hui2; Liu Li2; Luo Yuanlong2
刊名BOREAS
出版日期2020
页码DOI: 10.1111/bor.12473
ISSN号0300-9483
DOI10.1111/bor.12473
产权排序2
文献子类Article; Early Access
英文摘要Extensive loess deposits exist in the Western Qinling Mountains(WQM), which constitute the transition zone between the Tibetan Plateau and the Chinese Loess Plateau (CLP). These deposits are one of the most important terrestrial archives regarding past dust activity and environmental changes in East Asia; however, they remain insufficiently known and poorly understood. Herein, we conducted detailed quartz optically stimulated luminescence dating and multi-proxy analysis on the Zhouqu loess sequence. Our results show that the loess on the high terrace of the Bailong River started to accumulate by at least similar to 60 ka. The mass accumulation rate (MAR) in Zhouqu significantly varied during the Last Glacial period. The Marine Isotope Stage (MIS) 3 MARs were relatively high and stable. The highest MARoccurred in MIS2, with peak MARs during 25-19 ka, and it decreased with rapid changes during the Holocene. The discrepancy in the MARs of the WQM loess since the Last Glacial period compared with the rates in the CLP may imply different dust deposition processes in the WQM. The reconstructed palaeoenvironmental records indicate climate changes with warm-moist climate patterns and low dust flux in interglacial periods and cold-dry conditions with high dust flux in glacial periods, consistent with those on the CLP. The results contribute to better understanding of the linkages between dust accumulation and climate change in the WQM area.
电子版国际标准刊号1502-3885
语种英语
WOS记录号WOS:000572542100001
源URL[http://ir.imde.ac.cn/handle/131551/46284]  
专题成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者Yang Shengli
作者单位1.Chinese Acad Sci, CAS Key Lab Mt Hazards & Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China;
推荐引用方式
GB/T 7714		 Yang Shengli,Liu Nannan,Li Dongxue,et al. Quartz OSL chronology of the loess deposits in the Western Qinling Mountains, China, and their palaeoenvironmental implications since the Last Glacial period[J]. BOREAS,2020:DOI: 10.1111/bor.12473.
APA Yang Shengli.,Liu Nannan.,Li Dongxue.,Cheng Ting.,Liu Weiming.,...&Luo Yuanlong.(2020).Quartz OSL chronology of the loess deposits in the Western Qinling Mountains, China, and their palaeoenvironmental implications since the Last Glacial period.BOREAS,DOI: 10.1111/bor.12473.
MLA Yang Shengli,et al."Quartz OSL chronology of the loess deposits in the Western Qinling Mountains, China, and their palaeoenvironmental implications since the Last Glacial period".BOREAS (2020):DOI: 10.1111/bor.12473.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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