Rock magnetic record of late Neogene red clay sediments from the Chinese Loess Plateau and its implications for East Asian monsoon evolution

doi:10.1016/j.palaeo.2017.09.025

IEECAS OpenIR > 古环境研究室

	Rock magnetic record of late Neogene red clay sediments from the Chinese Loess Plateau and its implications for East Asian monsoon evolution
	Song, Yougui1 ; Fang, Xiaomin 2; Chen, Xiuling 3; Torii, Masayuki 4; Ishikawa, Naoto 5; Zhang, Maosheng 6; Yang, Shengli 7; Chan, Hong 1
通讯作者	Song, Yougui(ygsong@loess.llqg.ac.cn)
	2018-12-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	510 页码:109-123
摘要	The Quaternary loess-paleosol and underlying Neogene red clay sequences on the Chinese Loess Plateau (CLP) contain a remarkable continental record of past East Asian monsoon changes and aridification of the Asian interior. While monsoon variability during the Quaternary is reasonably well understood, the evolution and dynamics of the monsoon during the Neogene are still debated. The rock magnetism of aeolian sediments is a well-established tool for reconstructing the palaeoclimatic history of Asia. Here, we present a rock magnetic record from Late Neogene red clay sediments of the Chaona section in the central CLP. The results indicate that the main magnetic minerals in the red clay are magnetite, maghemite, hematite and goethite, similar to the overlying Quaternary loess-palaeosol sequences. The high-resolution rock magnetic record, combined with the results of other proxies, demonstrate a stepwise intensification of the summer monsoon and a progressive enhancement of the winter monsoon in East Asia during the Late Neogene. Based on the results, the climatic evolution of East Asia can be divided into three intervals: Interval III, from 8.1 to 6.8 Ma, is characterized by a cool, dry climate with a relatively weak East Asian Summer Monsoon (EASM) and East Asian Winter Monsoon (EAWM); Interval II, from 6.8 to 4.3 Ma, is characterized by cool/warm cycles; and Interval I, from 4.3 to 2.8/2.6 Ma, was warm and humid, and within which the EASM strengthened rapidly and the EAWM fluctuated considerably, with an increasing trend. We infer that before 4.3 Ma the variations of both the EASM and EAWM were closely related to global cooling and that the intensified EASM during the late Pliocene was primarily caused by tectonic events, including the gradual closure of the Panama Seaway and the uplift of the Tibetan Plateau, rather than by global cooling.
关键词	Late Miocene Pliocene Global cooling Tectonic events Magnetic minerals
DOI	10.1016/j.palaeo.2017.09.025
关键词[WOS]	LATE CENOZOIC UPLIFT ; ANTARCTIC ICE-SHEET ; GRAIN-SIZE RECORDS ; LATE MIOCENE ; TIBETAN PLATEAU ; PALEOCLIMATIC SIGNIFICANCE ; SUMMER MONSOON ; MODERN SOILS ; LIUPAN-SHAN ; LOESS/PALAEOSOL SEQUENCES
收录类别	SCI ; SCI
语种	英语
资助项目	Natural Science Foundation of China (NSFC)[41290253] ; Natural Science Foundation of China (NSFC)[41572162] ; Natural Science Foundation of China (NSFC)[41472147] ; Xi'an Centre of Geological Survey, CGS[[2017]0438] ; International partnership Program of Chinese Academy of Sciences (CAS)[132B61KYS20160002] ; Scientific and Technological Innovation Team of CAS[CAS Renzi (2013)47]
WOS研究方向	Physical Geography ; Geology ; Paleontology
项目资助者	Natural Science Foundation of China (NSFC) ; Xi'an Centre of Geological Survey, CGS ; International partnership Program of Chinese Academy of Sciences (CAS) ; Scientific and Technological Innovation Team of CAS
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000452585100011
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14487
专题	古环境研究室
通讯作者	Song, Yougui
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China 3.Fujian Normal Univ, Coll Geog Sci, Inst Geog, Fuzhou 350007, Fujian, Peoples R China 4.Okayama Univ Sci, Fac Informat, Okayama 7000005, Japan 5.Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan 6.Minist Land & Resources China, Xian Ctr Geol Survey, Key Lab Geohazard Loess Area, Xian 710054, Shaanxi, Peoples R China 7.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Song, Yougui,Fang, Xiaomin,Chen, Xiuling,et al. Rock magnetic record of late Neogene red clay sediments from the Chinese Loess Plateau and its implications for East Asian monsoon evolution[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2018,510:109-123.
APA	Song, Yougui.,Fang, Xiaomin.,Chen, Xiuling.,Torii, Masayuki.,Ishikawa, Naoto.,...&Chan, Hong.(2018).Rock magnetic record of late Neogene red clay sediments from the Chinese Loess Plateau and its implications for East Asian monsoon evolution.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,510,109-123.
MLA	Song, Yougui,et al."Rock magnetic record of late Neogene red clay sediments from the Chinese Loess Plateau and its implications for East Asian monsoon evolution".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 510(2018):109-123.