兰州大学机构库 >资源环境学院
Late Pliocene-Quaternary evolution of redox conditions in the western Qaidam paleolake (NE Tibetan Plateau) deduced from Mn geochemistry in the drilling core SG-1
Yang, Yibo1; Fang, Xiaomin1,2,3; Appel, Erwin4; Galy, Albert5; Li, Minghui1; Zhang, Weilin1
2013-11
Source PublicationQUATERNARY RESEARCH   Impact Factor & Quartile Of Published Year  The Latest Impact Factor & Quartile
ISSN0033-5894
Volume80Issue:3Pages:586-595
AbstractManganese (Mn) in lake sediments reacts strongly to changes of redox conditions. This study analyzed Mn concentrations in oxides, carbonates, and bulk phases of the calcareous lacustrine sediments of a 938.5-m-long core (SG-1) taken from the western Qaidam Basin, well dated from 2.77 Ma to 0.1 Ma. Comparisons of extractions from diluted hydrochloric acid, acetic acid and citrate-bicarbonate-dithionite demonstrate that variations of Mn concentrations from acetic acid leaching (Mn-HOAc) are mostly responsible for Mn (II) fluctuations in the carbonate phase. Taking into account the relevant processes during weathering, transportation, deposition and post-deposition of Mn-bearing rocks, we conclude that Mn input from catchment weathering and paleolake redox condition provide the primary controls on variations in the Mn records of carbonate and oxide phases. We propose Mn-HOAC as a new sensitive indicator of paleolake redox evolution and catchment-scale climate change. The Mn-HOAC variations show a long-term upward decreasing trend, indicating a long-term decrease of Mn input from catchment weathering associated with increasing oxygen content in the paleolake bottom water. The great similarities of the Mn-HOAC record with other regional and global records suggest that paleolake redox changes and climatic drying in the Qaidam Basin may be largely related to global cooling. (C) 2013 University of Washington. Published by Elsevier Inc All rights reserved.
KeywordLate Pliocene-Quaternary Qaidam Basin Manganese geochemistry Lake redox conditions Asian inland drying
Subject AreaPhysical Geography ; Geology
PublisherELSEVIER
DOI10.1016/j.yqres.2013.07.007
Publication PlaceSAN DIEGO
Indexed BySCIE ; EI
Language英语
First Inst
Funding Project国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划) ; 德国科学基金会项目
Project NumberChinese Academy of Sciences [XDB03020400] ; National Basic Research Program of China [2013CB956400, 2011CB403000] ; National Natural Science Foundation (NSFC) [41021001, 40920114001] ; German Research Foundation (DFG) [AP 34/344-1, SPP 1372 TiP] ; German Ministry for Education and Research (BMBF) [03G0705A]
WOS IDWOS:000327285500023
Funding OrganizationNSFC ; MOST ; DFG
SubtypeArticle
EI ID20134616968409
Department[Yang, Yibo;
Fang, Xiaomin;
Li, Minghui;
Zhang, Weilin] Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100085, Peoples R China;
[Fang, Xiaomin] Lanzhou Univ, Minist Educ China, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China;
[Fang, Xiaomin] Lanzhou Univ, Coll Resources & Environm, Lanzhou 730000, Peoples R China;
[Appel, Erwin] Univ Tubingen, Ctr Appl Geosci, Dept Geosci, D-72074 Tubingen, Germany;
[Galy, Albert] Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/120353
Collection资源环境学院
Corresponding AuthorFang, Xiaomin
Affiliation
1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100085, Peoples R China
2.Lanzhou Univ, Minist Educ China, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China
3.Lanzhou Univ, Coll Resources & Environm, Lanzhou 730000, Peoples R China
4.Univ Tubingen, Ctr Appl Geosci, Dept Geosci, D-72074 Tubingen, Germany
5.Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England
Recommended Citation
GB/T 7714
Yang, Yibo,Fang, Xiaomin,Appel, Erwin,et al. Late Pliocene-Quaternary evolution of redox conditions in the western Qaidam paleolake (NE Tibetan Plateau) deduced from Mn geochemistry in the drilling core SG-1[J]. QUATERNARY RESEARCH,2013,80(3):586-595.
APA Yang, Yibo,Fang, Xiaomin,Appel, Erwin,Galy, Albert,Li, Minghui,&Zhang, Weilin.(2013).Late Pliocene-Quaternary evolution of redox conditions in the western Qaidam paleolake (NE Tibetan Plateau) deduced from Mn geochemistry in the drilling core SG-1.QUATERNARY RESEARCH,80(3),586-595.
MLA Yang, Yibo,et al."Late Pliocene-Quaternary evolution of redox conditions in the western Qaidam paleolake (NE Tibetan Plateau) deduced from Mn geochemistry in the drilling core SG-1".QUATERNARY RESEARCH 80.3(2013):586-595.
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