IEECAS OpenIR  > 黄土与第四纪地质国家重点实验室(2010~)
Provenance and climate change inferred from Sr–Nd–Pb isotopes of late Quaternary sediments in the Huanghe (Yellow River) Delta, China
Hu, BQ (Hu, Bangqi)[1,2]; Li, GG (Li, Guogang)[3,4]; Li, J (Li, Jun)[1]; Bi, JQ (Bi, Jianqiang)[3,4]; Zhao, JT (Zhao, Jingtao)[1]; Bu, RY (Bu, Ruyuan)[3,4]
2012-11-30
Source PublicationQuaternary Research
Volume78Issue:3Pages:561-571
Subtype期刊论文
Abstract

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 87Sr/86Sr 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 εNd and lower 208Pb/204Pb, 207Pb/204Pb, and 206Pb/204Pb 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.

KeywordSr Nd aNd Pb Isotopes Late Quaternary Huanghe Provenance Climate Changes
DOI10.1016/j.yqres.2012.07.005
Indexed BySCI ; EI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10143
Collection黄土与第四纪地质国家重点实验室(2010~)
Corresponding AuthorHu, BQ (Hu, Bangqi)[1,2]
Affiliation1.Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Qingdao Institute of Marine Geology, Ministry of Land and Resources, Qingdao 266071, China;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;
3.Shandong Provincial Key Laboratory of Marine Ecology and Environment & Disaster Prevention and Mitigation, Qingdao 266033, China;
4.Marine Engineering and Prospecting Institute of North China Sea, North China Sea Branch of the State Oceanic Administration, Qingdao 266033, China
Recommended Citation
GB/T 7714
Hu, BQ (Hu, Bangqi)[1,2],Li, GG (Li, Guogang)[3,4],Li, J (Li, Jun)[1],等. 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, BQ ,Li, GG ,Li, J ,Bi, JQ ,Zhao, JT ,&Bu, RY .(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, BQ ,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.
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