Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.yqres.2012.07.005 |
Provenance and climate change inferred from Sr-Nd-Pb isotopes of late Quaternary sediments in the Huanghe (Yellow River) Delta, China | |
Hu, Bangqi1,2; Li, Guogang3,4; Li, Jun1; Bi, Jianqiang3,4; Zhao, Jingtao1; Bu, Ruyuan3,4 | |
通讯作者 | Hu, Bangqi |
来源期刊 | QUATERNARY RESEARCH
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ISSN | 0033-5894 |
EISSN | 1096-0287 |
出版年 | 2012 |
卷号 | 78期号:3页码:561-571 |
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. |
英文关键词 | Sr Nd and Pb isotopes Late Quaternary Huanghe Provenance Climate changes |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000310822100015 |
WOS关键词 | MAJOR-ELEMENT CHEMISTRY ; EASTERN TIBETAN PLATEAU ; PAST 8 MA ; LOESS PLATEAU ; EOLIAN DEPOSITS ; WEATHERING HISTORY ; LATE PLEISTOCENE ; HIGH-RESOLUTION ; MONSOON RECORD ; EROSION |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
来源机构 | 中国科学院地球环境研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/174711 |
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 |
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]. 中国科学院地球环境研究所,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. |
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