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Large Igneous Province thermogenic greenhouse gas flux could have initiated Paleocene-Eocene Thermal Maximum climate change

Author

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  • Stephen M. Jones

    (School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston)

  • Murray Hoggett

    (School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston)

  • Sarah E. Greene

    (School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston)

  • Tom Dunkley Jones

    (School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston)

Abstract

Large Igneous Provinces (LIPs) are associated with the largest climate perturbations in Earth’s history. The North Atlantic Igneous Province (NAIP) and Paleocene-Eocene Thermal Maximum (PETM) constitute an exemplar of this association. As yet we have no means to reconstruct the pacing of LIP greenhouse gas emissions for comparison with climate records at millennial resolution. Here, we calculate carbon-based greenhouse gas fluxes associated with the NAIP at sub-millennial resolution by linking measurements of the mantle convection process that generated NAIP magma with observations of the individual geological structures that controlled gas emissions in a Monte Carlo framework. These simulations predict peak emissions flux of 0.2–0.5 PgC yr–1 and show that the NAIP could have initiated PETM climate change. This is the first predictive model of carbon emissions flux from any proposed PETM carbon source that is directly constrained by observations of the geological structures that controlled the emissions.

Suggested Citation

  • Stephen M. Jones & Murray Hoggett & Sarah E. Greene & Tom Dunkley Jones, 2019. "Large Igneous Province thermogenic greenhouse gas flux could have initiated Paleocene-Eocene Thermal Maximum climate change," Nature Communications, Nature, vol. 10(1), pages 1-16, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12957-1
    DOI: 10.1038/s41467-019-12957-1
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    Cited by:

    1. Thea H. Heimdal & Yves Goddéris & Morgan T. Jones & Henrik H. Svensen, 2021. "Assessing the importance of thermogenic degassing from the Karoo Large Igneous Province (LIP) in driving Toarcian carbon cycle perturbations," Nature Communications, Nature, vol. 12(1), pages 1-7, December.

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