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  4. 中国科学院新生代地质与环境重点实验室
Precipitation thresholds for iron oxides dissolution and the enhanced Eurasian aridity across the Mid-Pleistocene Transition: Evidence from loess deposits in subtropical China

文献类型：期刊论文

作者Gao, Xinbo11; Hao, Qingzhen8,9,10,11; Qiao, Yansong7; Peng, Shuzhen6; Li, Nan5; Zhang, Wei6; Han, Long4; Deng, Chenglong3,8,9,10; Markovic, Slobodan B.1,2; Guo, Zhengtang8,9,10,11
刊名GLOBAL AND PLANETARY CHANGE
出版日期2021-09-01
卷号204页码:14
关键词Loess Subtropical China Iron oxides Magnetoclimatology Pedostratigraphy Magnetostratigraphy
ISSN号0921-8181
DOI10.1016/j.gloplacha.2021.103580
英文摘要The extensive loess deposits in southern China ('Xiashu' loess) are a valuable paleoclimatic archive in the subtropical monsoon region. We carried out a combined study of iron oxide mineralogy, pedostratigraphy, and magnetostratigraphy of three new loess sections in subtropical China. A detailed comparison of the iron oxides content of the Xiashu loess and the loess of the Chinese Loess Plateau reveals that the iron oxides of paleosol units in the Xiashu loess are partially dissolved. The estimated minimum mean annual precipitation levels required for the dissolution of maghemite, hematite, and goethite and the 95% confidence bounds are similar to 793 mm (679-907 mm), 728 mm (683-772 mm), and 941 mm (834-1048 mm) respectively. A regional comparison of the stratigraphy and magnetic susceptibility of the loess deposits in subtropical China reveals a general lack of correlation. The relatively low continuity of dust deposition combined with iron oxide dissolution is the main cause of the spatial inconsistency of the stratigraphy and magnetic properties. Magnetostratigraphic analysis reveals a basal age of 1.1 Ma for the loess deposits in subtropical China, which demonstrates that the intensification of aridification of the subtropical regions and a strengthened East Asian winter monsoon began by at least 1.1 Ma. Thus, the loess deposits in subtropical China provide terrestrial evidence from mid-low latitudes for global cooling and enhanced aridity across the Mid-Pleistocene Transition.
WOS关键词MAGNETIC-SUSCEPTIBILITY ; SOUTHERN CHINA ; XIASHU LOESS ; MODERN SOILS ; TEMPERATURE-DEPENDENCE ; TIBETAN PLATEAU ; NORTH-ATLANTIC ; ICE SHEETS ; CLIMATE ; PROVENANCE
资助项目National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41625010] ; National Natural Science Foundation of China[41690114] ; National Natural Science Foundation of China[42007399] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; National Key Research and Develop-ment Program[2017YFE0112800]
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000687257000002
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program ; National Key Research and Develop-ment Program
源URL[http://ir.iggcas.ac.cn/handle/132A11/102600]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Hao, Qingzhen
作者单位1.Univ Novi Sad, Fac Sci, Trg Dositeja Obradovica 3, Novi Sad, Serbia
2.Serbian Acad Arts & Sci, Knez Mihajlova 35, Belgrade, Serbia
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen, Peoples R China
5.Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China
6.Taishan Univ, Key Lab Tourism & Resources Environm Univ Shandon, Tai An, Shandong, Peoples R China
7.Chinese Acad Geol Sci, Inst Geomech, Beijing, Peoples R China
8.Innovat Acad Earth Sci, Chinese Acad Sci, Beijing, Peoples R China
9.Univ Chinese Acad Sci, Beijing, Peoples R China
10.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Xinbo,Hao, Qingzhen,Qiao, Yansong,et al. Precipitation thresholds for iron oxides dissolution and the enhanced Eurasian aridity across the Mid-Pleistocene Transition: Evidence from loess deposits in subtropical China[J]. GLOBAL AND PLANETARY CHANGE,2021,204:14.
APA Gao, Xinbo.,Hao, Qingzhen.,Qiao, Yansong.,Peng, Shuzhen.,Li, Nan.,...&Guo, Zhengtang.(2021).Precipitation thresholds for iron oxides dissolution and the enhanced Eurasian aridity across the Mid-Pleistocene Transition: Evidence from loess deposits in subtropical China.GLOBAL AND PLANETARY CHANGE,204,14.
MLA Gao, Xinbo,et al."Precipitation thresholds for iron oxides dissolution and the enhanced Eurasian aridity across the Mid-Pleistocene Transition: Evidence from loess deposits in subtropical China".GLOBAL AND PLANETARY CHANGE 204(2021):14.

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来源：地质与地球物理研究所

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