气候变化领域集成服务门户(CCPortal): A new record of late Pliocene-early Pleistocene aeolian loess-red clay deposits from the western Chinese Loess Plateau and its palaeoenvironmental implications

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DOI	10.1016/j.quascirev.2018.02.010
	A new record of late Pliocene-early Pleistocene aeolian loess-red clay deposits from the western Chinese Loess Plateau and its palaeoenvironmental implications
	Zan, Jinbo; Fang, Xiaomin; Zhang, Weilin; Yan, Maodu; Zhang, Dawen
通讯作者	Fang, XM (通讯作者)
发表日期	2018
ISSN	0277-3791
起始页码	17
结束页码	26
卷号	186
英文摘要	The loess red clay sequences in northern China provide high-resolution terrestrial records of Asian monsoon evolution and aridification of the Asian interior. To date, however, aeolian deposits of late Pliocene-early Pleistocene age (3.5-2.4 Ma) have only rarely been reported from the western Chinese Loess Plateau (CLP), which significantly hinders our understanding of the distribution of aeolian deposits and the palaeoenvironmental evolution of the region. Here, we present magnetostratigraphic, lithologic and magnetic susceptibility results for two recently-drilled boreholes from the north bank of Baxie River, central Linxia Basin, which are highly correlative with those of the loess-red clay deposits spanning the interval from 3.6 to 2.4 Ma in the eastern CLP. Our results provide the first direct evidence for the occurrence of late Pliocene-early Pleistocene aeolian deposits in the western CLP and provide new insights into the distribution of aeolian deposits in northern China. The spatial coherence of the magnetic susceptibility fluctuations further indicates that magnetic susceptibility is a powerful tool for strati graphic correlation of late Pliocene aeolian deposits in the western CLP. In addition, our results demonstrate that erosional events may have occurred in the early or middle Pleistocene, and they may provide new insights into the reasons for the absence of loess-red clay deposits from 3.5 to 2.4 Ma in most parts of the western CLP. (C) 2018 Elsevier Ltd. All rights reserved.
关键词	PALEOCLIMATIC SIGNIFICANCE TIBETAN PLATEAU MAGNETOSTRATIGRAPHY EVOLUTION SEQUENCES SUSCEPTIBILITY SEDIMENTS TERRACES LANZHOU UPLIFT
英文关键词	Plio-Pleistocene transition; Chinese Loess Plateau; Loess-red clay; Paleoclimatology
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000430770000002
来源期刊	QUATERNARY SCIENCE REVIEWS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259122
推荐引用方式 GB/T 7714	Zan, Jinbo,Fang, Xiaomin,Zhang, Weilin,et al. A new record of late Pliocene-early Pleistocene aeolian loess-red clay deposits from the western Chinese Loess Plateau and its palaeoenvironmental implications[J]. 中国科学院青藏高原研究所,2018,186.
APA	Zan, Jinbo,Fang, Xiaomin,Zhang, Weilin,Yan, Maodu,&Zhang, Dawen.(2018).A new record of late Pliocene-early Pleistocene aeolian loess-red clay deposits from the western Chinese Loess Plateau and its palaeoenvironmental implications.QUATERNARY SCIENCE REVIEWS,186.
MLA	Zan, Jinbo,et al."A new record of late Pliocene-early Pleistocene aeolian loess-red clay deposits from the western Chinese Loess Plateau and its palaeoenvironmental implications".QUATERNARY SCIENCE REVIEWS 186(2018).