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Middle Eocene greenhouse warming facilitated by diminished weathering feedback

文献类型：期刊论文

作者van der Ploeg, Robin6; Selby, David4,5; Cramwinckel, Margot J.6; Li, Yang2,3; Bohaty, Steven M.1; Middelburg, Jack J.6; Sluijs, Appy6
刊名NATURE COMMUNICATIONS
出版日期2018-07-23
卷号9页码:10
ISSN号2041-1723
DOI10.1038/s41467-018-05104-9
英文摘要The Middle Eocene Climatic Optimum (MECO) represents a similar to 500-kyr period of global warming similar to 40 million years ago and is associated with a rise in atmospheric CO2 concentrations, but the cause of this CO2 rise remains enigmatic. Here we show, based on N osmium isotope ratios (Os-187/Os-188) of marine sediments and published records of the carbonate compensation depth (CCD), that the continental silicate weathering response to the inferred CO2 rise and warming was strongly diminished during the MECO-in contrast to expectations from the silicate weathering thermostat hypothesis. We surmise that global early and middle Eocene warmth gradually diminished the weatherability of continental rocks and hence the strength of the silicate weathering feedback, allowing for the prolonged accumulation of volcanic CO2 in the oceans and atmosphere during the MECO. These results are supported by carbon cycle modeling simulations, which highlight the fundamental importance of a variable weathering feedback strength in climate and carbon cycle interactions in Earth's history.
WOS关键词OSMIUM ISOTOPIC COMPOSITION ; ATMOSPHERIC CARBON-DIOXIDE ; RE-OS GEOCHRONOLOGY ; EQUATORIAL PACIFIC ; DECCAN VOLCANISM ; CENOZOIC CLIMATE ; EARLY OLIGOCENE ; CYCLE ; CO2 ; OCEAN
资助项目Ministry of Education, Culture and Science (OCW) of the Netherlands ; Total endowment fund ; Dida Scholarship of CUG Wuhan ; Institute of Geology and Geophysics, Chinese Academy of Sciences[SKL-K201706]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000439426100004
出版者NATURE PUBLISHING GROUP
资助机构Ministry of Education, Culture and Science (OCW) of the Netherlands ; Ministry of Education, Culture and Science (OCW) of the Netherlands ; Total endowment fund ; Total endowment fund ; Dida Scholarship of CUG Wuhan ; Dida Scholarship of CUG Wuhan ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Ministry of Education, Culture and Science (OCW) of the Netherlands ; Ministry of Education, Culture and Science (OCW) of the Netherlands ; Total endowment fund ; Total endowment fund ; Dida Scholarship of CUG Wuhan ; Dida Scholarship of CUG Wuhan ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Ministry of Education, Culture and Science (OCW) of the Netherlands ; Ministry of Education, Culture and Science (OCW) of the Netherlands ; Total endowment fund ; Total endowment fund ; Dida Scholarship of CUG Wuhan ; Dida Scholarship of CUG Wuhan ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Ministry of Education, Culture and Science (OCW) of the Netherlands ; Ministry of Education, Culture and Science (OCW) of the Netherlands ; Total endowment fund ; Total endowment fund ; Dida Scholarship of CUG Wuhan ; Dida Scholarship of CUG Wuhan ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/94013]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者van der Ploeg, Robin
作者单位1.Univ Southampton, Ocean & Earth Sci Natl Oceanog Ctr, Waterfront Campus, Southampton SO14 3ZH, Hants, England
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 10029, Peoples R China
3.Yale Univ, Dept Geol & Geophys, New Haven, CT 06511 USA
4.China Univ Geosci, Sch Earth Resources, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Hubei, Peoples R China
5.Univ Durham, Dept Earth Sci, Durham DH1 3LE, England
6.Univ Utrecht, Fac Geosci, Dept Earth Sci, NL-3584 CB Utrecht, Netherlands
推荐引用方式
GB/T 7714		 van der Ploeg, Robin,Selby, David,Cramwinckel, Margot J.,et al. Middle Eocene greenhouse warming facilitated by diminished weathering feedback[J]. NATURE COMMUNICATIONS,2018,9:10.
APA van der Ploeg, Robin.,Selby, David.,Cramwinckel, Margot J..,Li, Yang.,Bohaty, Steven M..,...&Sluijs, Appy.(2018).Middle Eocene greenhouse warming facilitated by diminished weathering feedback.NATURE COMMUNICATIONS,9,10.
MLA van der Ploeg, Robin,et al."Middle Eocene greenhouse warming facilitated by diminished weathering feedback".NATURE COMMUNICATIONS 9(2018):10.

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来源：地质与地球物理研究所

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