Marine Os isotopic evidence for multiple volcanic episodes during Cretaceous Oceanic Anoxic Event 1b
Abstract The Aptian–Albian boundary is marked by one of the major oceanic perturbations during the Cretaceous, called Oceanic Anoxic Event (OAE) 1b. Extensive volcanic episodes at the Southern Kerguelen Plateau has been suggested as the trigger of OAE1b, but compelling evidence remains lacking. Here...
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crspringernat:10.1038/s41598-020-69505-x 2023-05-15T17:51:11+02:00 Marine Os isotopic evidence for multiple volcanic episodes during Cretaceous Oceanic Anoxic Event 1b Matsumoto, Hironao Kuroda, Junichiro Coccioni, Rodolfo Frontalini, Fabrizio Sakai, Saburo Ogawa, Nanako O. Ohkouchi, Naohiko Grant-in-aid for JSPS Fellow 2020 http://dx.doi.org/10.1038/s41598-020-69505-x http://www.nature.com/articles/s41598-020-69505-x.pdf http://www.nature.com/articles/s41598-020-69505-x en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 10, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2020 crspringernat https://doi.org/10.1038/s41598-020-69505-x 2022-01-04T09:14:48Z Abstract The Aptian–Albian boundary is marked by one of the major oceanic perturbations during the Cretaceous, called Oceanic Anoxic Event (OAE) 1b. Extensive volcanic episodes at the Southern Kerguelen Plateau has been suggested as the trigger of OAE1b, but compelling evidence remains lacking. Here, we reconstructed the temporal variations of marine Os isotopic ratios across the Aptian–Albian boundary in the Tethyan and Pacific pelagic sedimentary records to elucidate the causal links between OAE1b, the biotic turnover, and volcanic episodes. Our new Os isotopic records show two negative spikes that correlate with a period of planktonic foraminiferal turnover across the Aptian–Albian boundary during OAE1b and suggest multiple submarine volcanic events. By comparing our Os isotopic profile with carbon isotopic compositions of carbonate, CaCO 3 content, and the relative abundances of agglutinated foraminifera, we conclude that ocean acidification caused by the massive release of CO 2 through extensive volcanic episodes could have promoted the major planktonic foraminiferal turnover during OAE1b. Article in Journal/Newspaper Ocean acidification Springer Nature (via Crossref) Kerguelen Pacific Scientific Reports 10 1 |
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English |
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Multidisciplinary Matsumoto, Hironao Kuroda, Junichiro Coccioni, Rodolfo Frontalini, Fabrizio Sakai, Saburo Ogawa, Nanako O. Ohkouchi, Naohiko Marine Os isotopic evidence for multiple volcanic episodes during Cretaceous Oceanic Anoxic Event 1b |
topic_facet |
Multidisciplinary |
description |
Abstract The Aptian–Albian boundary is marked by one of the major oceanic perturbations during the Cretaceous, called Oceanic Anoxic Event (OAE) 1b. Extensive volcanic episodes at the Southern Kerguelen Plateau has been suggested as the trigger of OAE1b, but compelling evidence remains lacking. Here, we reconstructed the temporal variations of marine Os isotopic ratios across the Aptian–Albian boundary in the Tethyan and Pacific pelagic sedimentary records to elucidate the causal links between OAE1b, the biotic turnover, and volcanic episodes. Our new Os isotopic records show two negative spikes that correlate with a period of planktonic foraminiferal turnover across the Aptian–Albian boundary during OAE1b and suggest multiple submarine volcanic events. By comparing our Os isotopic profile with carbon isotopic compositions of carbonate, CaCO 3 content, and the relative abundances of agglutinated foraminifera, we conclude that ocean acidification caused by the massive release of CO 2 through extensive volcanic episodes could have promoted the major planktonic foraminiferal turnover during OAE1b. |
author2 |
Grant-in-aid for JSPS Fellow |
format |
Article in Journal/Newspaper |
author |
Matsumoto, Hironao Kuroda, Junichiro Coccioni, Rodolfo Frontalini, Fabrizio Sakai, Saburo Ogawa, Nanako O. Ohkouchi, Naohiko |
author_facet |
Matsumoto, Hironao Kuroda, Junichiro Coccioni, Rodolfo Frontalini, Fabrizio Sakai, Saburo Ogawa, Nanako O. Ohkouchi, Naohiko |
author_sort |
Matsumoto, Hironao |
title |
Marine Os isotopic evidence for multiple volcanic episodes during Cretaceous Oceanic Anoxic Event 1b |
title_short |
Marine Os isotopic evidence for multiple volcanic episodes during Cretaceous Oceanic Anoxic Event 1b |
title_full |
Marine Os isotopic evidence for multiple volcanic episodes during Cretaceous Oceanic Anoxic Event 1b |
title_fullStr |
Marine Os isotopic evidence for multiple volcanic episodes during Cretaceous Oceanic Anoxic Event 1b |
title_full_unstemmed |
Marine Os isotopic evidence for multiple volcanic episodes during Cretaceous Oceanic Anoxic Event 1b |
title_sort |
marine os isotopic evidence for multiple volcanic episodes during cretaceous oceanic anoxic event 1b |
publisher |
Springer Science and Business Media LLC |
publishDate |
2020 |
url |
http://dx.doi.org/10.1038/s41598-020-69505-x http://www.nature.com/articles/s41598-020-69505-x.pdf http://www.nature.com/articles/s41598-020-69505-x |
geographic |
Kerguelen Pacific |
geographic_facet |
Kerguelen Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Scientific Reports volume 10, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-020-69505-x |
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Scientific Reports |
container_volume |
10 |
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1 |
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1766158240355188736 |