Clay mineralogy of the upper Miocene-Pliocene red clay from the central Chinese Loess Plateau and its paleoclimate implications

doi:10.1016/j.quaint.2019.11.039

IEECAS OpenIR > 古环境研究室

	Clay mineralogy of the upper Miocene-Pliocene red clay from the central Chinese Loess Plateau and its paleoclimate implications
	Wang, Qiansuo 1; Song, Yougui2,3 ; Li, Yue 2
通讯作者	Wang, Qiansuo(qiansuowang@outlook.com) ; Song, Yougui(syg@ieecas.cn)
	2020-06-30
发表期刊	QUATERNARY INTERNATIONAL
ISSN	1040-6182
卷号	552 页码:148-154
摘要	Study of clay mineral is one of effective methods for reconstruction of the paleoclimate and paleoenvironment. Here we represent clay mineral records from an upper Miocene-Pliocene red clay succession in the central Chinese Loess Plateau (CLP). On the basis of the existing age model, we employ X-ray diffraction and scanning electron microscopy to carry out clay mineral analyses, the results indicated that illite was the dominant clay mineral and the contents of smectite, chlorite and kaolinite were minor. From the analysis of contents of clay minerals, illite crystallinity, illite 5 angstrom/10 angstrom, smectite/(illite+chlorite) ratio, magnetic susceptibility, summer monsoon intensity and deep-sea delta O-18 values, the paleoclimatic evolution between 7.5 and 2.6 Ma can be divided into three intervals: interval I, from 7.5 to 6.9 Ma, it was cool and dry; interval II, from 6.9 to 4.1 Ma, was cool-warm oscillations; interval III, from 4.1 to 2.6 Ma, was significantly warm and humid stage of the seasonal climate conditions. The proxy records display a large amplitude transition in the later interval III, from 2.8 to 2.6 Ma, which implied an abrupt climate and environment variability. Through comparison the local and global paleoclimatic records, we found that clay minerals reflect regional paleoclimatic change superimposing global climatic records during the late Miocene-Pliocene period. We conclude that the regional tectonic activity and global cooling had affected East Asia Monsoon, which was characterized by the different temperature and precipitation in the central CLP.
关键词	Clay minerals Red clay X-ray diffraction Chinese loess plateau Late miocene-pliocene
DOI	10.1016/j.quaint.2019.11.039
关键词[WOS]	EAST-ASIAN MONSOON ; GRAIN-SIZE ; EOLIAN SEDIMENTS ; TIBETAN PLATEAU ; EARTH FORMATION ; POLLEN RECORD ; PROVENANCE ; EVOLUTION ; SEQUENCE ; DEPOSITS
收录类别	SCI ; SCI
语种	英语
资助项目	Natural Science Foundation of China (NSFC)[41807287] ; Natural Science Foundation of China (NSFC)[41572162] ; National Key Research and Development Program of China[2016YFA0601902] ; Shandong Provincial Natural Science Foundation[ZR2017BD017] ; Program of Geological Survey from Ministry of Land and Resources[DD20190294] ; Program of Geological Survey from Ministry of Land and Resources[DD20160261]
WOS研究方向	Physical Geography ; Geology
项目资助者	Natural Science Foundation of China (NSFC) ; National Key Research and Development Program of China ; Shandong Provincial Natural Science Foundation ; Program of Geological Survey from Ministry of Land and Resources
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000573017600007
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：9[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/361006/15389
专题	古环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Wang, Qiansuo; Song, Yougui
作者单位	1.Luoyang Normal Univ, Coll Land & Tourism, Luoyang 471934, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 3.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qiansuo,Song, Yougui,Li, Yue. Clay mineralogy of the upper Miocene-Pliocene red clay from the central Chinese Loess Plateau and its paleoclimate implications[J]. QUATERNARY INTERNATIONAL,2020,552:148-154.
APA	Wang, Qiansuo,Song, Yougui,&Li, Yue.(2020).Clay mineralogy of the upper Miocene-Pliocene red clay from the central Chinese Loess Plateau and its paleoclimate implications.QUATERNARY INTERNATIONAL,552,148-154.
MLA	Wang, Qiansuo,et al."Clay mineralogy of the upper Miocene-Pliocene red clay from the central Chinese Loess Plateau and its paleoclimate implications".QUATERNARY INTERNATIONAL 552(2020):148-154.