Enhanced continental weathering and large igneous province induced climate warming at the Permo-Carboniferous transition
Yang, Jianghai1,2; Cawood, Peter A.3; Montanez, Isabel P.4; Condon, Daniel J.5; Du, Yuansheng1,2; Yan, Jia-Xin1,2; Yan, Shaoquan6; Yuan, Dongxun7

Tracking climate change and its relationships with chemical weathering and massive volcanic activity in deep-time greatly improves our understanding of the Earth's climate system. The Permo-Carboniferous period is a critical time interval with million year-scale glacial-deglacial cycles and massive basaltic volcanism, such as the Skagerrak-Centered (also named Skagerrak or Jutland) large igneous province. To explore the volcanism-climate interactions in this period, we obtained high precision CA-TIMS U-Pb zircon ages for three tuffaceous layers from a cored upper Pennsylvanian-lower Permian marginal marine succession in southern North China. These ages calibrate the Permo-Carboniferous biostratigraphy between similar to 301-296 Ma in North China. From this dated core succession, mudrock samples and their calculated weathering index values were screened to constrain the weathering trends for the source landscapes and demonstrate a rapid increase with a subsequent decrease in source chemical weathering intensity during the period of similar to 299 to 296.5 Ma. These trends coincide with the southern Gondwana glacial records, low latitude temperature changes, relative sea-level variations, and shifts in atmospheric pCO(2) that together document an earliest Permian climate warming-cooling perturbation with a temperature maximum at similar to 298 Ma. This climate warming in the Permo-Carboniferous icehouse correlates with the emplacement of the Skagerrak-Centered large igneous province, which likely released voluminous CO2 that led to climate warming during the Permo-Carboniferous transition. The immediately following cooling could possibly result from the rapid post-eruptional weathering of the massive basaltic rocks of this province in tropical latitudes, which would have sequestered atmospheric CO2 and promoted return to cooler icehouse conditions. This study supports the assertation that massive basaltic volcanism could first cause rapid climate warming and then may have an overall net cooling effect as previously suggested for the Deccan Traps and the Central Atlantic Magmatic Province. (C) 2020 The Author(s). Published by Elsevier B.V.

Keywordmudrock source weathering trends early Permian climate warming large igneous province
Indexed BySCI
Funding ProjectNational Science Foundation of China[41572078] ; National Science Foundation of China[41872106] ; BGEG and GPMR laboratory funds[GKZ18Y660] ; BGEG and GPMR laboratory funds[GPMR201609] ; Fundamental Research Funds for the Central Universities[CUG160604] ; Australian Research Council[FL160100168]
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000515198200016
Funding OrganizationNational Science Foundation of China ; BGEG and GPMR laboratory funds ; Fundamental Research Funds for the Central Universities ; Australian Research Council
Document Type期刊论文
Corresponding AuthorYang, Jianghai
Affiliation1.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
2.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China
3.Monash Univ, Sch Earth Atmosphere & Environm, Melbourne, Vic 3800, Australia
4.Univ Calif Davis, Dept Earth & Planetary Sci, Davis, CA 95616 USA
5.British Geol Survey, NERC Isotope Geosci Lab, Keyworth NG12 5GG, Notts, England
6.4 Inst Geol & Mineral Resources Survey Henan, Zhengzhou 450016, Peoples R China
7.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Yang, Jianghai,Cawood, Peter A.,Montanez, Isabel P.,et al. Enhanced continental weathering and large igneous province induced climate warming at the Permo-Carboniferous transition[J]. EARTH AND PLANETARY SCIENCE LETTERS,2020,534:9.
APA Yang, Jianghai.,Cawood, Peter A..,Montanez, Isabel P..,Condon, Daniel J..,Du, Yuansheng.,...&Yuan, Dongxun.(2020).Enhanced continental weathering and large igneous province induced climate warming at the Permo-Carboniferous transition.EARTH AND PLANETARY SCIENCE LETTERS,534,9.
MLA Yang, Jianghai,et al."Enhanced continental weathering and large igneous province induced climate warming at the Permo-Carboniferous transition".EARTH AND PLANETARY SCIENCE LETTERS 534(2020):9.
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