Arid
DOI10.1016/j.jseaes.2017.10.040
Abrupt climatic events recorded by the Ili loess during the last glaciation in Central Asia: Evidence from grain-size and minerals
Song, Yougui1,4; Zeng, Mengxiu2; Chen, Xiuling3; Li, Yue1; Chang, Hong1; An, Zhisheng1; Guo, Xiaohua4
通讯作者Song, Yougui
来源期刊JOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
EISSN1878-5786
出版年2018
卷号155页码:58-67
英文摘要

The loess record of Central Asia provides an important archive of regional climate and environmental changes. In contrast to the widely investigated loess deposits in the Chinese Loess Plateau, Central Asian loess-paleosol sequences remain poorly understood. Here, we present an aeolian loess section in the southern Ili Basin. Based on granularity and mineralogical analyses, we reconstruct climatic changes during the last glaciation. The results indicated that most of the abrupt climatic events (such as Dansgaard-Oeschger events and Heinrich events) were imprinted in this loess section, although their amplitudes and ages showed some differences. Compared with the millennial oscillations recoded in loess and stalagmites in East Asia, the arid Central Asia responded more sensitively to the warming events than to the cooling events. The shifting trajectory of westerlies across Central Asia played an important role in dust deposition during the stadials. The North Atlantic climatic signals may have been transmitted from Central Asia to the East Asian monsoon regions via the westerlies.


英文关键词Loess Abrupt climatic events Grain size Minerals Last glaciation Central Asia
类型Article
语种英语
国家Peoples R China ; USA
收录类别SCI-E
WOS记录号WOS:000428006300006
WOS关键词NORTHEASTERN TIBETAN PLATEAU ; CHINESE LOESS ; ICE-CORE ; SUMMER MONSOON ; NORTH-ATLANTIC ; MAGNETIC-SUSCEPTIBILITY ; DUST ACCUMULATION ; NW CHINA ; INSTABILITY ; BASIN
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
来源机构中国科学院地球环境研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/210653
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China;
2.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China;
3.Fujian Normal Univ, Coll Geog Sci, State Key Lab Subtrop Mt Ecol, Fuzhou 350007, Fujian, Peoples R China;
4.Baylor Univ, Dept Geosci, Geoluminescence Dating Res Lab, Waco, TX 76798 USA
推荐引用方式
GB/T 7714
Song, Yougui,Zeng, Mengxiu,Chen, Xiuling,et al. Abrupt climatic events recorded by the Ili loess during the last glaciation in Central Asia: Evidence from grain-size and minerals[J]. 中国科学院地球环境研究所,2018,155:58-67.
APA Song, Yougui.,Zeng, Mengxiu.,Chen, Xiuling.,Li, Yue.,Chang, Hong.,...&Guo, Xiaohua.(2018).Abrupt climatic events recorded by the Ili loess during the last glaciation in Central Asia: Evidence from grain-size and minerals.JOURNAL OF ASIAN EARTH SCIENCES,155,58-67.
MLA Song, Yougui,et al."Abrupt climatic events recorded by the Ili loess during the last glaciation in Central Asia: Evidence from grain-size and minerals".JOURNAL OF ASIAN EARTH SCIENCES 155(2018):58-67.
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