The benthic foraminiferal δ34S records fux and timing of paleo methane emissions
In modern environments, pore water geochemistry and modelling simulations allow the study of methane (CH 4 ) sources and sinks at any geographic location. However, reconstructing CH 4 dynamics in geological records is challenging. Here, we show that the benthic foraminiferal δ 34 S can be used to re...
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Online Access: | https://hdl.handle.net/10037/17274 https://doi.org/10.1038/s41598-020-58353-4 |
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ftunivtroemsoe:oai:munin.uit.no:10037/17274 2023-05-15T14:27:45+02:00 The benthic foraminiferal δ34S records fux and timing of paleo methane emissions Borrelli, Chiara Gabitov, R.I. Liu, M.-C. Hertwig, A.T. Panieri, Giuliana 2020-01-28 https://hdl.handle.net/10037/17274 https://doi.org/10.1038/s41598-020-58353-4 eng eng Nature Research Scientific Reports Andre: NSF (EAR-1339051 and EAR-1734856) Norges forskningsråd: 223259 Norges forskningsråd: 255150 info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ info:eu-repo/grantAgreement/RCN/PETROMAKS2/255150/Norway/Norwegian margin fluid systems and methane- derived carbonate crusts - Recent scientific advances in service of petroleum exploration/NORCRUST/ Borrelli, Gabitov, Liu, Hertwig, Panieri G. The benthic foraminiferal δ34S records fux and timing of paleo methane emissions. Scientific Reports. 2020(10) FRIDAID 1784350 doi:10.1038/s41598-020-58353-4 2045-2322 https://hdl.handle.net/10037/17274 openAccess Copyright 2020 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2020 ftunivtroemsoe https://doi.org/10.1038/s41598-020-58353-4 2021-06-25T17:57:11Z In modern environments, pore water geochemistry and modelling simulations allow the study of methane (CH 4 ) sources and sinks at any geographic location. However, reconstructing CH 4 dynamics in geological records is challenging. Here, we show that the benthic foraminiferal δ 34 S can be used to reconstruct the fux (i.e., difusive vs. advective) and timing of CH 4 emissions in fossil records. We measured the δ 34 S of Cassidulina neoteretis specimens from selected samples collected at Vestnesa Ridge, a methane cold seep site in the Arctic Ocean. Our results show lower benthic foraminiferal δ 34 S values (∼20‰) in the sample characterized by seawater conditions, whereas higher values (∼25–27‰) were measured in deeper samples as a consequence of the presence of past sulphate-methane transition zones. The correlation between δ 34 S and the bulk benthic foraminiferal δ 13 C supports this interpretation, whereas the foraminiferal δ 18 O-δ 34 S correlation indicates CH 4 advection at the studied site during the Early Holocene and the Younger-Dryas – post-Bølling. This study highlights the potential of the benthic foraminiferal δ 34 S as a novel tool to reconstruct the fux of CH 4 emissions in geological records and to indirectly date fossil seeps. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Foraminifera* University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean Scientific Reports 10 1 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
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ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Borrelli, Chiara Gabitov, R.I. Liu, M.-C. Hertwig, A.T. Panieri, Giuliana The benthic foraminiferal δ34S records fux and timing of paleo methane emissions |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
description |
In modern environments, pore water geochemistry and modelling simulations allow the study of methane (CH 4 ) sources and sinks at any geographic location. However, reconstructing CH 4 dynamics in geological records is challenging. Here, we show that the benthic foraminiferal δ 34 S can be used to reconstruct the fux (i.e., difusive vs. advective) and timing of CH 4 emissions in fossil records. We measured the δ 34 S of Cassidulina neoteretis specimens from selected samples collected at Vestnesa Ridge, a methane cold seep site in the Arctic Ocean. Our results show lower benthic foraminiferal δ 34 S values (∼20‰) in the sample characterized by seawater conditions, whereas higher values (∼25–27‰) were measured in deeper samples as a consequence of the presence of past sulphate-methane transition zones. The correlation between δ 34 S and the bulk benthic foraminiferal δ 13 C supports this interpretation, whereas the foraminiferal δ 18 O-δ 34 S correlation indicates CH 4 advection at the studied site during the Early Holocene and the Younger-Dryas – post-Bølling. This study highlights the potential of the benthic foraminiferal δ 34 S as a novel tool to reconstruct the fux of CH 4 emissions in geological records and to indirectly date fossil seeps. |
format |
Article in Journal/Newspaper |
author |
Borrelli, Chiara Gabitov, R.I. Liu, M.-C. Hertwig, A.T. Panieri, Giuliana |
author_facet |
Borrelli, Chiara Gabitov, R.I. Liu, M.-C. Hertwig, A.T. Panieri, Giuliana |
author_sort |
Borrelli, Chiara |
title |
The benthic foraminiferal δ34S records fux and timing of paleo methane emissions |
title_short |
The benthic foraminiferal δ34S records fux and timing of paleo methane emissions |
title_full |
The benthic foraminiferal δ34S records fux and timing of paleo methane emissions |
title_fullStr |
The benthic foraminiferal δ34S records fux and timing of paleo methane emissions |
title_full_unstemmed |
The benthic foraminiferal δ34S records fux and timing of paleo methane emissions |
title_sort |
benthic foraminiferal δ34s records fux and timing of paleo methane emissions |
publisher |
Nature Research |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/17274 https://doi.org/10.1038/s41598-020-58353-4 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Foraminifera* |
genre_facet |
Arctic Arctic Arctic Ocean Foraminifera* |
op_relation |
Scientific Reports Andre: NSF (EAR-1339051 and EAR-1734856) Norges forskningsråd: 223259 Norges forskningsråd: 255150 info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ info:eu-repo/grantAgreement/RCN/PETROMAKS2/255150/Norway/Norwegian margin fluid systems and methane- derived carbonate crusts - Recent scientific advances in service of petroleum exploration/NORCRUST/ Borrelli, Gabitov, Liu, Hertwig, Panieri G. The benthic foraminiferal δ34S records fux and timing of paleo methane emissions. Scientific Reports. 2020(10) FRIDAID 1784350 doi:10.1038/s41598-020-58353-4 2045-2322 https://hdl.handle.net/10037/17274 |
op_rights |
openAccess Copyright 2020 The Author(s) |
op_doi |
https://doi.org/10.1038/s41598-020-58353-4 |
container_title |
Scientific Reports |
container_volume |
10 |
container_issue |
1 |
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1766301654109388800 |