Provenance and climate change inferred from Sr-Nd-Pb isotopes of late;Quaternary sediments in the Huanghe (Yellow River) Delta, China

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	Provenance and climate change inferred from Sr-Nd-Pb isotopes of late;Quaternary sediments in the Huanghe (Yellow River) Delta, China
	Hu, Bangqi 5; Li, Guogang ; Li, Jun ; Bi, Jianqiang ; Zhao, Jingtao ; Bu, Ruyuan
刊名	QUATERNARY RESEARCH
	2012
卷号	78 期号:3 页码:561-571
关键词	Sr Nd and Pb isotopes Late Quaternary Huanghe Provenance Climate changes
ISSN号	033ST
英文摘要	We present a provenance study of core ZK2 from the Huanghe (Yellow River) Delta in order to assess the impacts of climate change on the sediment supplies during the last glacial-interglacial cycle. Facies analysis and sequence stratigraphy methods are used to construct the age model. Sr isotopic compositions of ZK2 range from 0.716389 to 0.723884, with Sr-87/Sr-86 increased with decreasing grain size. Nd and Pb isotopic compositions display two large major excursions during Marine Oxygen Isotope stages (MIS) 2 and 4, with less radiogenic epsilon Nd and lower Pb-208/Pb-204, Pb-207/Pb-204, and Pb-206/Pb-204 values during these periods. These excursions have been explained in terms of changes in the mixing proportion of sediments from the Loess Plateau and Ordos Plateau, resulting from East Asian monsoon intensity variations. The weak summer monsoon precipitation resulted in decreased erosion of Loess Plateau during MIS 2, 4 and the middle of MIS 3. Meanwhile, both the intensified East Asian winter monsoon and the southward expansions of Mu Us desert significantly enhanced the eolian sand entering the Huanghe. Therefore, our results highlight the impact of monsoon variability on erosion patterns in the Huanghe basin. (c) 2012 University of Washington. Published by Elsevier Inc. All rights reserved.
学科主题	第四纪地质
WOS关键词	MAJOR-ELEMENT CHEMISTRY ; EASTERN TIBETAN PLATEAU ; PAST 8 MA ; LOESS ; PLATEAU ; EOLIAN DEPOSITS ; ASIAN DUST ; WEATHERING HISTORY ; LATE ; PLEISTOCENE ; HIGH-RESOLUTION ; MONSOON RECORD
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary
语种	英语
出版者	This paper has been improved significantly by two anonymous reviewers.;We thank Editors Alan Gillespie and Ashok Singhvi for their helpful;comments. This study was jointly supported by the Marine Public Welfare;Research Project (grant no. 200805063), National Natural Science;Foundation of China (grant no. 41206049, 40976036, 40906033), and Open;Foundation of the State Key Laboratory of Loess and Quaternary Geology;(grant no. SKLLQG1107).
WOS记录号	WOS:000310822100015
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39482]
专题	中国地质调查局青岛海洋地质研究所
作者单位	1.Minist Land & Resources, Qingdao Inst Marine Geol, Key Lab Marine Hydrocarbon Resources & Environm G, Qingdao 266071, Peoples R China. 2.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Peoples R China. 3.Shandong Prov Key Lab Marine Ecol & Environm & Di, Qingdao 266033, Peoples R China. 4.State Ocean Adm, N China Sea Branch, Marine Engn & Prospecting Inst N China Sea, Qingdao 266033, Peoples R China. 5.中国地质调查局青岛海洋地质研究所
推荐引用方式 GB/T 7714	Hu, Bangqi,Li, Guogang,Li, Jun,et al. Provenance and climate change inferred from Sr-Nd-Pb isotopes of late;Quaternary sediments in the Huanghe (Yellow River) Delta, China[J]. QUATERNARY RESEARCH,2012,78(3):561-571.
APA	Hu, Bangqi,Li, Guogang,Li, Jun,Bi, Jianqiang,Zhao, Jingtao,&Bu, Ruyuan.(2012).Provenance and climate change inferred from Sr-Nd-Pb isotopes of late;Quaternary sediments in the Huanghe (Yellow River) Delta, China.QUATERNARY RESEARCH,78(3),561-571.
MLA	Hu, Bangqi,et al."Provenance and climate change inferred from Sr-Nd-Pb isotopes of late;Quaternary sediments in the Huanghe (Yellow River) Delta, China".QUATERNARY RESEARCH 78.3(2012):561-571.