Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11430-017-9134-2 |
Onset of Xiashu loess deposition in southern China by 0.9 Ma and its implications for regional aridification | |
Li, Xusheng1; Han, Zhiyong1; Lu, Huayu1,2; Chen, Yingyong1,3; Li, Yang1; Yuan, Xiaokang1; Zhou, Yuwen1; Jiang, Mengyao1; Lv, Cunjuan1 | |
通讯作者 | Li, Xusheng ; Han, Zhiyong |
来源期刊 | SCIENCE CHINA-EARTH SCIENCES
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ISSN | 1674-7313 |
EISSN | 1869-1897 |
出版年 | 2018 |
卷号 | 61期号:3页码:256-269 |
英文摘要 | The Xiashu loess is a typical Quaternary eolian deposit in southern China and represents an important terrestrial paleoclimate archive in this low-latitude monsoon region. However, the chronological framework of Xiashu loess deposition has yet to be established. Determining the timing of the onset of Xiashu loess deposition will allow researchers to better understand late Quaternary aridification across the Asian continent, the evolution of the East Asian monsoon and regional environmental changes in subtropical regions. Therefore, in this study, a systematic chronological study of the Xiashu loess is conducted to answer this question. For the first time, magnetostratigraphic classification reveals that the Matuyama/Brunhes (M/B) reversal is present in the Xiashu loess at two sites in Jiangsu Province, the Qingshan profile at Yizheng and the Dagang core in Zhenjiang. Based on the results of magnetostratigraphy and optically stimulated luminescence (OSL) dating, the age of the lower boundary of the Xiashu loess is estimated to be approximately 0.9 Ma. Consequently, this Xiashu loess deposit is the oldest reported to date and is comparable in age to the red soil deposit in Xuancheng, Anhui Province. The onset of Xiashu loess deposition by 0.9 Ma represents the further expansion of arid range in Asia in the late Quaternary in response to significant aridification and winter monsoon strengthening in this subtropical region. We suggest that these climate changes were primarily driven by global cooling and an increase in high-latitude ice volume in the Northern Hemisphere and that the initiation of Xiashu loess accumulation was a regional response of southern China to the 0.9 Ma global cooling event. |
英文关键词 | Xiashu loess Chronology Magnetic stratigraphy Aridification East Asian monsoon |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000426574800002 |
WOS关键词 | MIDPLEISTOCENE CLIMATE TRANSITION ; ASIAN WINTER MONSOON ; PALEOCLIMATIC SIGNIFICANCE ; MAGNETIC-SUSCEPTIBILITY ; EOLIAN DEPOSITS ; NORTH-ATLANTIC ; ICE-VOLUME ; TEMPERATURE ; PLATEAU ; VARIABILITY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
来源机构 | 南京大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/212892 |
作者单位 | 1.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China; 2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; 3.Henan Univ, Coll Environm & Planning, Kaifeng 475001, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Xusheng,Han, Zhiyong,Lu, Huayu,et al. Onset of Xiashu loess deposition in southern China by 0.9 Ma and its implications for regional aridification[J]. 南京大学,2018,61(3):256-269. |
APA | Li, Xusheng.,Han, Zhiyong.,Lu, Huayu.,Chen, Yingyong.,Li, Yang.,...&Lv, Cunjuan.(2018).Onset of Xiashu loess deposition in southern China by 0.9 Ma and its implications for regional aridification.SCIENCE CHINA-EARTH SCIENCES,61(3),256-269. |
MLA | Li, Xusheng,et al."Onset of Xiashu loess deposition in southern China by 0.9 Ma and its implications for regional aridification".SCIENCE CHINA-EARTH SCIENCES 61.3(2018):256-269. |
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