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Early Wuchiapingian cooling linked to Emeishan basaltic weathering?
Yang, Jianghai1,2; Cawood, Peter A.3; Du, Yuansheng1,2; Condon, Daniel J.4; Yan, Jiaxin1,2; Liu, Jianzhong5; Huang, Yan1,2; Yuan, Dongxun (袁东勋)6
2018-06-15
Source PublicationEARTH AND PLANETARY SCIENCE LETTERS
ISSN0012-821X
Volume492Pages:102-111
Abstract

The last glaciation during the late Paleozoic ice age commenced at around the Guadalupian-Lopingian (G-L) boundary and is synchronous with the emplacement of the Emeishan large igneous province. Using CA-TIMS zircon U-Pb dating, we obtained an age of 259.51 +/- 0.21 Ma for the uppermost tuff from the Puan volcanic sequence in the eastern Emeishan large igneous province, constraining the timing of Emeishan volcanism and providing another candidate age for the G-L boundary. In addition, we determined an age of 259.69 +/- 0.72 Ma for a basal claystone in the immediately overlying Longtan Formation from a drill core section in southwest South China. These ages, along with source weathering trends of mudstones from the lower Longtan Formation, and compiled paleotemperature records, indicate an earliest Wuchiapingian cooling coinciding with the onset of the last Permian glaciation. This global cooling is associated with positive shifts in both organic and carbonate carbon isotopic records and likely a decrease in atmospheric pCO(2). A hypothesised causal linkage is proposed in which the rapid post eruptive basaltic weathering of the Emeishan province in an equatorial humid belt may accelerate the atmospheric CO2 consumption and lead to climate cooling. Our work supports the long-term climate cooling effects of large igneous provinces. (C) 2018 Elsevier B.V. All rights reserved.

KeywordLate Paleozoic Ice Age South China Weathering Trends Early Wuchiapingian Cooling Emeishan Large Igneous Province
DOI10.1016/j.epsl.2018.04.004
Language英语
WOS KeywordLarge Igneous Province ; Paleozoic Ice-age ; Plume-lithosphere Interaction ; Permian-triassic Boundary ; U-pb Age ; Sw China ; Eastern Australia ; Mass Extinction ; South China ; Global Climate
Funding ProjectNational Science Foundation of China[41572078] ; 111 Project[B08030] ; fundamental Research Funds for the Central Universities[CUG160604] ; Australian Research Council[FL160100168] ; Hubei Chenguang Talented Youth Development Foundation
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000432762000010
Funding OrganizationNational Science Foundation of China ; 111 Project ; fundamental Research Funds for the Central Universities ; Australian Research Council ; Hubei Chenguang Talented Youth Development Foundation
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/18663
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorYang, Jianghai
Affiliation1.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Hubei, Peoples R China
2.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Hubei, Peoples R China
3.Monash Univ, Sch Earth Atmosphere & Environm, Melbourne, Vic 3800, Australia
4.British Geol Survey, NERC Isotope Geosci Lab, Keyworth NG12 5GG, Notts, England
5.Bur Geol & Mineral Explorat & Dev Guizhou Prov, Guiyang 550000, Guizhou, Peoples R China
6.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Yang, Jianghai,Cawood, Peter A.,Du, Yuansheng,et al. Early Wuchiapingian cooling linked to Emeishan basaltic weathering?[J]. EARTH AND PLANETARY SCIENCE LETTERS,2018,492:102-111.
APA Yang, Jianghai.,Cawood, Peter A..,Du, Yuansheng.,Condon, Daniel J..,Yan, Jiaxin.,...&Yuan, Dongxun .(2018).Early Wuchiapingian cooling linked to Emeishan basaltic weathering?.EARTH AND PLANETARY SCIENCE LETTERS,492,102-111.
MLA Yang, Jianghai,et al."Early Wuchiapingian cooling linked to Emeishan basaltic weathering?".EARTH AND PLANETARY SCIENCE LETTERS 492(2018):102-111.
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