Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/108281
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Baker, Sarah J. | - |
dc.contributor.author | Hesselbo, Stephen P. | - |
dc.contributor.author | Lenton, Timothy M. | - |
dc.contributor.author | Duarte, Luís V. | - |
dc.contributor.author | Belcher, Claire M. | - |
dc.date.accessioned | 2023-08-22T10:57:00Z | - |
dc.date.available | 2023-08-22T10:57:00Z | - |
dc.date.issued | 2017-05-12 | - |
dc.identifier.issn | 2041-1723 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/108281 | - |
dc.description.abstract | The Toarcian Oceanic Anoxic Event (T-OAE) was characterized by a major disturbance to the global carbon(C)-cycle, and depleted oxygen in Earth's oceans resulting in marine mass extinction. Numerical models predict that increased organic carbon burial should drive a rise in atmospheric oxygen (pO2) leading to termination of an OAE after ∼1 Myr. Wildfire is highly responsive to changes in pO2 implying that fire-activity should vary across OAEs. Here we test this hypothesis by tracing variations in the abundance of fossil charcoal across the T-OAE. We report a sustained ∼800 kyr enhancement of fire-activity beginning ∼1 Myr after the onset of the T-OAE and peaking during its termination. This major enhancement of fire occurred across the timescale of predicted pO2 variations, and we argue this was primarily driven by increased pO2. Our study provides the first fossil-based evidence suggesting that fire-feedbacks to rising pO2 may have aided in terminating the T-OAE. | pt |
dc.language.iso | eng | pt |
dc.publisher | Springer Nature | pt |
dc.relation | We thank the Natural Environment Research Council for funding through a studentship grant NE/L501669/1 to S.J.B. C.M.B. acknowledges funding via an ERC Starter Grant ERC-2013-StG-335891-ECOFLAM. S.P.H., T.M.L. and C.M.B. acknowledge funding from the NERC ‘JET’ grant NE/N018508/1, as well as a Royal Society Wolfson Research Merit Award supporting T.M.L. | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject.mesh | Animals | pt |
dc.subject.mesh | Aquatic Organisms | pt |
dc.subject.mesh | Atmosphere | pt |
dc.subject.mesh | Carbon | pt |
dc.subject.mesh | Charcoal | pt |
dc.subject.mesh | Earth, Planet | pt |
dc.subject.mesh | Ecosystem | pt |
dc.subject.mesh | Extinction, Biological | pt |
dc.subject.mesh | Fires | pt |
dc.subject.mesh | Fossils | pt |
dc.subject.mesh | Oceans and Seas | pt |
dc.subject.mesh | Oxygen | pt |
dc.title | Charcoal evidence that rising atmospheric oxygen terminated Early Jurassic ocean anoxia | pt |
dc.type | article | - |
degois.publication.firstPage | 15018 | pt |
degois.publication.issue | 1 | pt |
degois.publication.title | Nature Communications | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.1038/ncomms15018 | pt |
degois.publication.volume | 8 | pt |
dc.date.embargo | 2017-05-12 | * |
uc.date.periodoEmbargo | 0 | pt |
item.fulltext | Com Texto completo | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.author.researchunit | MARE - Marine and Environmental Sciences Centre | - |
crisitem.author.orcid | 0000-0002-9025-5896 | - |
Appears in Collections: | FCTUC Ciências da Vida - Artigos em Revistas Internacionais I&D MARE - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Charcoal-evidence-that-rising-atmospheric-oxygen-terminated-Early-Jurassic-ocean-anoxiaNature-Communications.pdf | 564.45 kB | Adobe PDF | View/Open |
Page view(s)
71
checked on Oct 16, 2024
Download(s)
18
checked on Oct 16, 2024
Google ScholarTM
Check
Altmetric
Altmetric
This item is licensed under a Creative Commons License