Paleocene/Eocene carbon feedbacks triggered by volcanic activity
dc.contributor.author | Kender, S | |
dc.contributor.author | Bogus, K | |
dc.contributor.author | Pedersen, GK | |
dc.contributor.author | Dybkjær, K | |
dc.contributor.author | Mather, TA | |
dc.contributor.author | Mariani, E | |
dc.contributor.author | Ridgwell, A | |
dc.contributor.author | Riding, JB | |
dc.contributor.author | Wagner, T | |
dc.contributor.author | Hesselbo, SP | |
dc.contributor.author | Leng, MJ | |
dc.date.accessioned | 2021-08-31T12:53:09Z | |
dc.date.issued | 2021-08-31 | |
dc.description.abstract | The Paleocene–Eocene Thermal Maximum (PETM) was a period of geologically-rapid carbon release and global warming ~56 million years ago. Although modelling, outcrop and proxy records suggest volcanic carbon release occurred, it has not yet been possible to identify the PETM trigger, or if multiple reservoirs of carbon were involved. Here we report elevated levels of mercury relative to organic carbon—a proxy for volcanism—directly preceding and within the early PETM from two North Sea sedimentary cores, signifying pulsed volcanism from the North Atlantic Igneous Province likely provided the trigger and subsequently sustained elevated CO2. However, the PETM onset coincides with a mercury low, suggesting at least one other carbon reservoir released significant greenhouse gases in response to initial warming. Our results support the existence of ‘tipping points’ in the Earth system, which can trigger release of additional carbon reservoirs and drive Earth’s climate into a hotter state. | en_GB |
dc.description.sponsorship | NERC Isotope Geoscience Steering Committee (NIGFSC) | en_GB |
dc.description.sponsorship | European Research Council (ERC) | en_GB |
dc.description.sponsorship | University of Exeter | en_GB |
dc.identifier.citation | Vol. 12, article 5186 | en_GB |
dc.identifier.doi | 10.1038/s41467-021-25536-0 | |
dc.identifier.grantnumber | IP-1547-0515 | en_GB |
dc.identifier.grantnumber | IP-1915-0619 | en_GB |
dc.identifier.grantnumber | ERC-2018-COG-818717-V-ECHO | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/126942 | |
dc.language.iso | en | en_GB |
dc.publisher | Nature Research | en_GB |
dc.rights | © The Author(s) 2021. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. | en_GB |
dc.title | Paleocene/Eocene carbon feedbacks triggered by volcanic activity | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2021-08-31T12:53:09Z | |
exeter.article-number | 5186 | en_GB |
dc.description | This is the final version. Available on open access from Nature Research via the DOI in this record | en_GB |
dc.description | Data availability: The data that support the findings of this study are available within the Supplementary Information. | en_GB |
dc.identifier.eissn | 2041-1723 | |
dc.identifier.journal | Nature Communications | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2021-08-11 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2021-08-31 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2021-08-31T12:49:06Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2021-08-31T12:53:25Z | |
refterms.panel | B | en_GB |
Files in this item
This item appears in the following Collection(s)
Except where otherwise noted, this item's licence is described as © The Author(s) 2021. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.