Polar record of Early Jurassic massive carbon injection
The Toarcian Oceanic Anoxic Event (T-OAE) (ca. 182 Myr, EarlyJurassic) represents one of the best-recognized examples of greenhouse warming, decreased seawater oxygenation and mass extinction. The leading hypothesis to explain these changes is the massive injection of thermogenic or gas hydrate-deri...
Published in: | Earth and Planetary Science Letters |
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Online Access: | http://nora.nerc.ac.uk/id/eprint/15976/ https://nora.nerc.ac.uk/id/eprint/15976/1/Suan_et_al_Polar_TOAE_EPSL_2nd_revision_ter.pdf http://www.sciencedirect.com/science/journal/0012821X |
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ftnerc:oai:nora.nerc.ac.uk:15976 2023-05-15T15:01:59+02:00 Polar record of Early Jurassic massive carbon injection Suan, Guillaume Nikitenko, Boris L. Rogov, Mikhail A. Baudin, Francois Spangenberg, Jorge E. Knyazev, Valeriy G. Glinskikh, Larisa A. Goryacheva, Anna A. Adatte, Thierry Riding, James B. Follmi, Karl B. Pittet, Bernard Mattioli, Emanuela Lecuyer, Christophe 2011 text http://nora.nerc.ac.uk/id/eprint/15976/ https://nora.nerc.ac.uk/id/eprint/15976/1/Suan_et_al_Polar_TOAE_EPSL_2nd_revision_ter.pdf http://www.sciencedirect.com/science/journal/0012821X en eng Elsevier https://nora.nerc.ac.uk/id/eprint/15976/1/Suan_et_al_Polar_TOAE_EPSL_2nd_revision_ter.pdf Suan, Guillaume; Nikitenko, Boris L.; Rogov, Mikhail A.; Baudin, Francois; Spangenberg, Jorge E.; Knyazev, Valeriy G.; Glinskikh, Larisa A.; Goryacheva, Anna A.; Adatte, Thierry; Riding, James B. orcid:0000-0002-5529-8989 Follmi, Karl B.; Pittet, Bernard; Mattioli, Emanuela; Lecuyer, Christophe. 2011 Polar record of Early Jurassic massive carbon injection. Earth & Planetary Science Letters, 312 (1-2). 102-113. https://doi.org/10.1016/j.epsl.2011.09.050 <https://doi.org/10.1016/j.epsl.2011.09.050> Publication - Article PeerReviewed 2011 ftnerc 2023-02-04T19:30:13Z The Toarcian Oceanic Anoxic Event (T-OAE) (ca. 182 Myr, EarlyJurassic) represents one of the best-recognized examples of greenhouse warming, decreased seawater oxygenation and mass extinction. The leading hypothesis to explain these changes is the massive injection of thermogenic or gas hydrate-derived 13C-depleted carbon into the atmosphere, resulting in a > 3 per mil negative carbon isotope excursion (CIE), accelerated nutrient input and dissolved oxygen consumption in the oceans. Nevertheless, the lack of a precisely dated record of the T-OAE outside low latitudes has led to considerable debate about both its temporal and spatial extent and hence concerning its underlying causes. Here we present new isotopic and lithological data from three precisely dated N Siberian sections, which demonstrate that mass extinction and onset of strong oxygen-deficiency occurred near synchronously in polar and most tropical sites and were intimately linked to the onset of a marked 6‰ negative CIE recorded by bulk organic carbon. Rock Eval pyrolysis data from Siberia and comparisons with low latitudes show that the CIE cannot be explained by the extent of stratification of the studied basins or changes in organic matter sourcing and suggest that the negative CIE reflects rapid 13C-depleted carbon injection to all exchangeable reservoirs. Sedimentological and palynological indicators show that the injection coincided with a change from cold (abundant glendonites and exotic boulder-sized clasts) to exceptionally warm conditions (dominance of the thermophyllic pollen genus Classopollis) in the Arctic, which likely triggered a rapid, possibly partly glacioeustatic sea-level rise. Comparisons with low latitude records reveal that warm climate conditions and poor marine oxygenation persisted in continental margins at least 600 kyr after the CIE, features that can be attributed to protracted and massive volcanic carbon dioxide degassing. Our data reveal that the T-OAE profoundly affected Arctic climate and oceanography and suggest ... Article in Journal/Newspaper Arctic Polar Record Siberia Natural Environment Research Council: NERC Open Research Archive Arctic Earth and Planetary Science Letters 312 1-2 102 113 |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
The Toarcian Oceanic Anoxic Event (T-OAE) (ca. 182 Myr, EarlyJurassic) represents one of the best-recognized examples of greenhouse warming, decreased seawater oxygenation and mass extinction. The leading hypothesis to explain these changes is the massive injection of thermogenic or gas hydrate-derived 13C-depleted carbon into the atmosphere, resulting in a > 3 per mil negative carbon isotope excursion (CIE), accelerated nutrient input and dissolved oxygen consumption in the oceans. Nevertheless, the lack of a precisely dated record of the T-OAE outside low latitudes has led to considerable debate about both its temporal and spatial extent and hence concerning its underlying causes. Here we present new isotopic and lithological data from three precisely dated N Siberian sections, which demonstrate that mass extinction and onset of strong oxygen-deficiency occurred near synchronously in polar and most tropical sites and were intimately linked to the onset of a marked 6‰ negative CIE recorded by bulk organic carbon. Rock Eval pyrolysis data from Siberia and comparisons with low latitudes show that the CIE cannot be explained by the extent of stratification of the studied basins or changes in organic matter sourcing and suggest that the negative CIE reflects rapid 13C-depleted carbon injection to all exchangeable reservoirs. Sedimentological and palynological indicators show that the injection coincided with a change from cold (abundant glendonites and exotic boulder-sized clasts) to exceptionally warm conditions (dominance of the thermophyllic pollen genus Classopollis) in the Arctic, which likely triggered a rapid, possibly partly glacioeustatic sea-level rise. Comparisons with low latitude records reveal that warm climate conditions and poor marine oxygenation persisted in continental margins at least 600 kyr after the CIE, features that can be attributed to protracted and massive volcanic carbon dioxide degassing. Our data reveal that the T-OAE profoundly affected Arctic climate and oceanography and suggest ... |
format |
Article in Journal/Newspaper |
author |
Suan, Guillaume Nikitenko, Boris L. Rogov, Mikhail A. Baudin, Francois Spangenberg, Jorge E. Knyazev, Valeriy G. Glinskikh, Larisa A. Goryacheva, Anna A. Adatte, Thierry Riding, James B. Follmi, Karl B. Pittet, Bernard Mattioli, Emanuela Lecuyer, Christophe |
spellingShingle |
Suan, Guillaume Nikitenko, Boris L. Rogov, Mikhail A. Baudin, Francois Spangenberg, Jorge E. Knyazev, Valeriy G. Glinskikh, Larisa A. Goryacheva, Anna A. Adatte, Thierry Riding, James B. Follmi, Karl B. Pittet, Bernard Mattioli, Emanuela Lecuyer, Christophe Polar record of Early Jurassic massive carbon injection |
author_facet |
Suan, Guillaume Nikitenko, Boris L. Rogov, Mikhail A. Baudin, Francois Spangenberg, Jorge E. Knyazev, Valeriy G. Glinskikh, Larisa A. Goryacheva, Anna A. Adatte, Thierry Riding, James B. Follmi, Karl B. Pittet, Bernard Mattioli, Emanuela Lecuyer, Christophe |
author_sort |
Suan, Guillaume |
title |
Polar record of Early Jurassic massive carbon injection |
title_short |
Polar record of Early Jurassic massive carbon injection |
title_full |
Polar record of Early Jurassic massive carbon injection |
title_fullStr |
Polar record of Early Jurassic massive carbon injection |
title_full_unstemmed |
Polar record of Early Jurassic massive carbon injection |
title_sort |
polar record of early jurassic massive carbon injection |
publisher |
Elsevier |
publishDate |
2011 |
url |
http://nora.nerc.ac.uk/id/eprint/15976/ https://nora.nerc.ac.uk/id/eprint/15976/1/Suan_et_al_Polar_TOAE_EPSL_2nd_revision_ter.pdf http://www.sciencedirect.com/science/journal/0012821X |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Polar Record Siberia |
genre_facet |
Arctic Polar Record Siberia |
op_relation |
https://nora.nerc.ac.uk/id/eprint/15976/1/Suan_et_al_Polar_TOAE_EPSL_2nd_revision_ter.pdf Suan, Guillaume; Nikitenko, Boris L.; Rogov, Mikhail A.; Baudin, Francois; Spangenberg, Jorge E.; Knyazev, Valeriy G.; Glinskikh, Larisa A.; Goryacheva, Anna A.; Adatte, Thierry; Riding, James B. orcid:0000-0002-5529-8989 Follmi, Karl B.; Pittet, Bernard; Mattioli, Emanuela; Lecuyer, Christophe. 2011 Polar record of Early Jurassic massive carbon injection. Earth & Planetary Science Letters, 312 (1-2). 102-113. https://doi.org/10.1016/j.epsl.2011.09.050 <https://doi.org/10.1016/j.epsl.2011.09.050> |
container_title |
Earth and Planetary Science Letters |
container_volume |
312 |
container_issue |
1-2 |
container_start_page |
102 |
op_container_end_page |
113 |
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1766333982014701568 |