Catastrophic ocean acidification at the Triassic-Jurassic boundary
Palaeobotanical and geochemical evidence indicate a sudden rise in atmospheric carbon dioxide (CO2) across the Triassic-Jurassic boundary, probably reflecting the combined effect of extensive volcanic degassing and thermal dissociation of marine gas hydrates. Using carbon isotopes as a geochemical m...
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ftunivzuerich:oai:www.zora.uzh.ch:9774 2024-09-30T14:40:39+00:00 Catastrophic ocean acidification at the Triassic-Jurassic boundary Hautmann, M Benton, M J Tomasových, A 2008-07 application/pdf https://www.zora.uzh.ch/id/eprint/9774/ https://www.zora.uzh.ch/id/eprint/9774/10/s9V.pdf https://doi.org/10.5167/uzh-9774 https://doi.org/10.1127/0077-7749/2008/0249-0119 eng eng Schweizerbart https://www.zora.uzh.ch/id/eprint/9774/10/s9V.pdf doi:10.5167/uzh-9774 doi:10.1127/0077-7749/2008/0249-0119 urn:issn:0077-7749 info:eu-repo/semantics/restrictedAccess Hautmann, M; Benton, M J; Tomasových, A (2008). Catastrophic ocean acidification at the Triassic-Jurassic boundary. Neues Jahrbuch für Geologie und Paläontologie, 249(1):119-127. Department of Paleontology 560 Fossils & prehistoric life Ocean Acidification Biomineralization Skeletal mineralogy Mass extinction Triassic Jurassic Journal Article PeerReviewed info:eu-repo/semantics/article 2008 ftunivzuerich https://doi.org/10.5167/uzh-977410.1127/0077-7749/2008/0249-0119 2024-09-04T00:39:05Z Palaeobotanical and geochemical evidence indicate a sudden rise in atmospheric carbon dioxide (CO2) across the Triassic-Jurassic boundary, probably reflecting the combined effect of extensive volcanic degassing and thermal dissociation of marine gas hydrates. Using carbon isotopes as a geochemical marker, we found that the onset of the CO2 emissions coincided with an interruption of carbonate sedimentation in palaeogeographically distant regions, suggesting that hydrolysis of CO2 led to a short but substantial decrease of seawater pH that slowed down or inhibited precipitation of calcium carbonate minerals. The cessation of carbonate sedimentation correlates with a major marine extinction event, which especially affected organisms with aragonitic or high-Mg calcitic skeletons and little physiological control of biocalcification. These findings strengthen current concerns that ocean acidification from industrial CO2 release threatens biotopes that are dominated by such organisms, in particular tropical reef systems. Article in Journal/Newspaper Ocean acidification University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Department of Paleontology 560 Fossils & prehistoric life Ocean Acidification Biomineralization Skeletal mineralogy Mass extinction Triassic Jurassic |
spellingShingle |
Department of Paleontology 560 Fossils & prehistoric life Ocean Acidification Biomineralization Skeletal mineralogy Mass extinction Triassic Jurassic Hautmann, M Benton, M J Tomasových, A Catastrophic ocean acidification at the Triassic-Jurassic boundary |
topic_facet |
Department of Paleontology 560 Fossils & prehistoric life Ocean Acidification Biomineralization Skeletal mineralogy Mass extinction Triassic Jurassic |
description |
Palaeobotanical and geochemical evidence indicate a sudden rise in atmospheric carbon dioxide (CO2) across the Triassic-Jurassic boundary, probably reflecting the combined effect of extensive volcanic degassing and thermal dissociation of marine gas hydrates. Using carbon isotopes as a geochemical marker, we found that the onset of the CO2 emissions coincided with an interruption of carbonate sedimentation in palaeogeographically distant regions, suggesting that hydrolysis of CO2 led to a short but substantial decrease of seawater pH that slowed down or inhibited precipitation of calcium carbonate minerals. The cessation of carbonate sedimentation correlates with a major marine extinction event, which especially affected organisms with aragonitic or high-Mg calcitic skeletons and little physiological control of biocalcification. These findings strengthen current concerns that ocean acidification from industrial CO2 release threatens biotopes that are dominated by such organisms, in particular tropical reef systems. |
format |
Article in Journal/Newspaper |
author |
Hautmann, M Benton, M J Tomasových, A |
author_facet |
Hautmann, M Benton, M J Tomasových, A |
author_sort |
Hautmann, M |
title |
Catastrophic ocean acidification at the Triassic-Jurassic boundary |
title_short |
Catastrophic ocean acidification at the Triassic-Jurassic boundary |
title_full |
Catastrophic ocean acidification at the Triassic-Jurassic boundary |
title_fullStr |
Catastrophic ocean acidification at the Triassic-Jurassic boundary |
title_full_unstemmed |
Catastrophic ocean acidification at the Triassic-Jurassic boundary |
title_sort |
catastrophic ocean acidification at the triassic-jurassic boundary |
publisher |
Schweizerbart |
publishDate |
2008 |
url |
https://www.zora.uzh.ch/id/eprint/9774/ https://www.zora.uzh.ch/id/eprint/9774/10/s9V.pdf https://doi.org/10.5167/uzh-9774 https://doi.org/10.1127/0077-7749/2008/0249-0119 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Hautmann, M; Benton, M J; Tomasových, A (2008). Catastrophic ocean acidification at the Triassic-Jurassic boundary. Neues Jahrbuch für Geologie und Paläontologie, 249(1):119-127. |
op_relation |
https://www.zora.uzh.ch/id/eprint/9774/10/s9V.pdf doi:10.5167/uzh-9774 doi:10.1127/0077-7749/2008/0249-0119 urn:issn:0077-7749 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.5167/uzh-977410.1127/0077-7749/2008/0249-0119 |
_version_ |
1811643145506521088 |