ITPCAS OpenIR  > 图书馆
Grain-size analysis of Upper Pliocene red clay deposits from Linxia Basin: Implications for Asian monsoon evolution on the NE margin of the Tibetan Plateau
Zan, JB (Zan, Jinbo)1,2,3; Li, XJ (Li, Xiaojing); Fang, XM (Fang, Xiaomin); Zhang, WL (Zhang, Weilin); Yan, MD (Yan, Maodu); Mao, ZQ (Mao, Ziqiang)
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
2018-12-15
Volume511Issue:0Pages:597-605
DOI10.1016/j.palaeo.2018.09.027
Abstract

Little is known about the evolution of the East Asian winter monsoon (EAWM) on the NE margin of the Tibetan Plateau (TP) during the late Pliocene-early Pleistocene, due to the poor exposure of pre-Quaternary eolian deposits and ambiguities in the interpretation of paleoclimatic proxies. In this study, we performed detailed grain size analyses of eolian sequences (spanning 3.7-2.4 Ma) from two new boreholes in Linxia Basin, in the NE TP. We compared our results with contemporaneous loess-red clay sequences across the Chinese Loess Plateau (CLP) and identified a substantial decrease in the thickness and grain size of upper Pliocene-lower Pleistocene loess and red clay sediments from the western to central parts of the CLP. This observation supports the view that the grain size of upper Pliocene eolian sequences from Linxia Basin can be used to reconstruct the evolution of the EAWM. In addition, it demonstrates that the modern spatial pattern of the EAWM regime in the western CLP has been maintained since at least the late Pliocene. Records of both median grain-size (Md) and sand content from the boreholes exhibit an overall upward-increasing trend during the interval from similar to 3.7-2.4 Ma, indicating a longterm stepwise intensification of the EAWM and aridity on the NE margin of the TP. In addition, a dramatic coarsening of the grain size in loess unit L34 documents a large climatic shift at similar to 2.75 Ma, which may be closely linked with the major intensification of Northern Hemisphere glaciation during the late Pliocene.

Subject Area地质学
WOS IDWOS:000452583600040
Language英语
Indexed BySCIE
KeywordChinese Loess Plateau Northern China Records Ma Delta-o-18 Timescale Sequences Uplift
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
Cooperation Status国内
ISSN0031-0182
Department大陆碰撞与高原隆升重点实验室
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8474
Collection图书馆
Corresponding AuthorZan, JB (Zan, Jinbo)
Affiliation1.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
2.Chinese Acad Sci, Key Lab Continental Collis & Plateau Uplift, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China;
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Zan, JB ,Li, XJ ,Fang, XM ,et al. Grain-size analysis of Upper Pliocene red clay deposits from Linxia Basin: Implications for Asian monsoon evolution on the NE margin of the Tibetan Plateau[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2018,511(0):597-605.
APA Zan, JB ,Li, XJ ,Fang, XM ,Zhang, WL ,Yan, MD ,&Mao, ZQ .(2018).Grain-size analysis of Upper Pliocene red clay deposits from Linxia Basin: Implications for Asian monsoon evolution on the NE margin of the Tibetan Plateau.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,511(0),597-605.
MLA Zan, JB ,et al."Grain-size analysis of Upper Pliocene red clay deposits from Linxia Basin: Implications for Asian monsoon evolution on the NE margin of the Tibetan Plateau".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 511.0(2018):597-605.
Files in This Item:
File Name/Size DocType Version Access License
2018012.pdf(2651KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zan, JB (Zan, Jinbo)]'s Articles
[Li, XJ (Li, Xiaojing)]'s Articles
[Fang, XM (Fang, Xiaomin)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zan, JB (Zan, Jinbo)]'s Articles
[Li, XJ (Li, Xiaojing)]'s Articles
[Fang, XM (Fang, Xiaomin)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zan, JB (Zan, Jinbo)]'s Articles
[Li, XJ (Li, Xiaojing)]'s Articles
[Fang, XM (Fang, Xiaomin)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2018012.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.