IGGCAS OpenIR  > 岩石圈演化国家重点实验室
Transient mobilization of subcrustal carbon coincident with Palaeocene-Eocene Thermal Maximum
Gernon, Thomas M.1; Barr, Ryan1; Fitton, J. Godfrey2; Hincks, Thea K.1; Keir, Derek1,3; Longman, Jack1,4; Merdith, Andrew S.5,6; Mitchell, Ross N.7; Palmer, Martin R.1
2022-06-23
Source PublicationNATURE GEOSCIENCE
ISSN1752-0894
Pages21
AbstractPlume magmatism and continental breakup led to the opening of the northeast Atlantic Ocean during the globally warm early Cenozoic. This warmth culminated in a transient (170 thousand year, kyr) hyperthermal event associated with a large, if poorly constrained, emission of carbon called the Palaeocene-Eocene Thermal Maximum (PETM) 56 million years ago (Ma). Methane from hydrothermal vents in the coeval North Atlantic Igneous Province (NAIP) has been proposed as the trigger, though isotopic constraints from deep sea sediments have instead implicated direct volcanic carbon dioxide (CO2) emissions. Here we calculate that background levels of volcanic outgassing from mid-ocean ridges and large igneous provinces yield only one-fifth of the carbon required to trigger the hyperthermal. However, geochemical analyses of volcanic sequences spanning the rift-to-drift phase of the NAIP indicate a sudden similar to 220 kyr-long intensification of magmatic activity coincident with the PETM. This was likely driven by thinning and enhanced decompression melting of the sub-continental lithospheric mantle, which critically contained a high proportion of carbon-rich metasomatic carbonates. Melting models and coupled tectonic-geochemical simulations indicate that >10(4) gigatons of subcrustal carbon was mobilized into the ocean and atmosphere sufficiently rapidly to explain the scale and pace of the PETM.
DOI10.1038/s41561-022-00967-6
Funding OrganizationNatural Environment Research Council (NERC) ; Natural Environment Research Council (NERC) ; Alan Turing Institute under the EPSRC ; Alan Turing Institute under the EPSRC ; NERC ; NERC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Deep Carbon Observatory ; Deep Carbon Observatory ; Richard Lounsbery Foundation ; Richard Lounsbery Foundation ; MCSA Fellowship NEOEARTH ; MCSA Fellowship NEOEARTH ; Natural Environment Research Council (NERC) ; Natural Environment Research Council (NERC) ; Alan Turing Institute under the EPSRC ; Alan Turing Institute under the EPSRC ; NERC ; NERC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Deep Carbon Observatory ; Deep Carbon Observatory ; Richard Lounsbery Foundation ; Richard Lounsbery Foundation ; MCSA Fellowship NEOEARTH ; MCSA Fellowship NEOEARTH ; Natural Environment Research Council (NERC) ; Natural Environment Research Council (NERC) ; Alan Turing Institute under the EPSRC ; Alan Turing Institute under the EPSRC ; NERC ; NERC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Deep Carbon Observatory ; Deep Carbon Observatory ; Richard Lounsbery Foundation ; Richard Lounsbery Foundation ; MCSA Fellowship NEOEARTH ; MCSA Fellowship NEOEARTH ; Natural Environment Research Council (NERC) ; Natural Environment Research Council (NERC) ; Alan Turing Institute under the EPSRC ; Alan Turing Institute under the EPSRC ; NERC ; NERC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Deep Carbon Observatory ; Deep Carbon Observatory ; Richard Lounsbery Foundation ; Richard Lounsbery Foundation ; MCSA Fellowship NEOEARTH ; MCSA Fellowship NEOEARTH
WOS KeywordTRACE-ELEMENT ; DEEP CARBON ; ICELAND PLUME ; RARE-EARTH ; ISOTOPE COMPOSITIONS ; IGNEOUS PROVINCE ; MANTLE PLUMES ; LITHOSPHERE ; GREENLAND ; ND
Language英语
Funding ProjectNatural Environment Research Council (NERC)[NE/R004978/1] ; Alan Turing Institute under the EPSRC[EP/N510129/1] ; NERC[NE/K00543X/1] ; National Natural Science Foundation of China[41888101] ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS)[IGGCAS-201905] ; Deep Carbon Observatory ; Richard Lounsbery Foundation ; MCSA Fellowship NEOEARTH[893615]
Funding OrganizationNatural Environment Research Council (NERC) ; Natural Environment Research Council (NERC) ; Alan Turing Institute under the EPSRC ; Alan Turing Institute under the EPSRC ; NERC ; NERC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Deep Carbon Observatory ; Deep Carbon Observatory ; Richard Lounsbery Foundation ; Richard Lounsbery Foundation ; MCSA Fellowship NEOEARTH ; MCSA Fellowship NEOEARTH ; Natural Environment Research Council (NERC) ; Natural Environment Research Council (NERC) ; Alan Turing Institute under the EPSRC ; Alan Turing Institute under the EPSRC ; NERC ; NERC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Deep Carbon Observatory ; Deep Carbon Observatory ; Richard Lounsbery Foundation ; Richard Lounsbery Foundation ; MCSA Fellowship NEOEARTH ; MCSA Fellowship NEOEARTH ; Natural Environment Research Council (NERC) ; Natural Environment Research Council (NERC) ; Alan Turing Institute under the EPSRC ; Alan Turing Institute under the EPSRC ; NERC ; NERC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Deep Carbon Observatory ; Deep Carbon Observatory ; Richard Lounsbery Foundation ; Richard Lounsbery Foundation ; MCSA Fellowship NEOEARTH ; MCSA Fellowship NEOEARTH ; Natural Environment Research Council (NERC) ; Natural Environment Research Council (NERC) ; Alan Turing Institute under the EPSRC ; Alan Turing Institute under the EPSRC ; NERC ; NERC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Key Research Programme of the Institute of Geology & Geophysics, Chinese Academy of Sciences (CAS) ; Deep Carbon Observatory ; Deep Carbon Observatory ; Richard Lounsbery Foundation ; Richard Lounsbery Foundation ; MCSA Fellowship NEOEARTH ; MCSA Fellowship NEOEARTH
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000814973200001
PublisherNATURE PORTFOLIO
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105882
Collection岩石圈演化国家重点实验室
Corresponding AuthorGernon, Thomas M.
Affiliation1.Univ Southampton, Sch Ocean & Earth Sci, Southampton, Hants, England
2.Univ Edinburgh, Sch GeoSci, Edinburgh, Midlothian, Scotland
3.Univ Firenze, Dipartimento Sci Terra, Florence, Italy
4.Carl von Ossietzky Univ Oldenburg, Inst Chem & Biol Marine Environm, Oldenburg, Germany
5.Univ Lyon 1, Lab Geol, Villeurbanne, France
6.Univ Leeds, Sch Earth & Environm, Leeds, W Yorkshire, England
7.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Gernon, Thomas M.,Barr, Ryan,Fitton, J. Godfrey,et al. Transient mobilization of subcrustal carbon coincident with Palaeocene-Eocene Thermal Maximum[J]. NATURE GEOSCIENCE,2022:21.
APA Gernon, Thomas M..,Barr, Ryan.,Fitton, J. Godfrey.,Hincks, Thea K..,Keir, Derek.,...&Palmer, Martin R..(2022).Transient mobilization of subcrustal carbon coincident with Palaeocene-Eocene Thermal Maximum.NATURE GEOSCIENCE,21.
MLA Gernon, Thomas M.,et al."Transient mobilization of subcrustal carbon coincident with Palaeocene-Eocene Thermal Maximum".NATURE GEOSCIENCE (2022):21.
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