Fish tooth δ18O revising Late Cretaceous meridional upper ocean water temperature gradients
International audience The oxygen isotope composition of fossil fi sh teeth, a paleo– upper ocean temperature proxy exceptionally resistant to diagenetic alteration, provides new insight on the evolution of the low- to middlelatitude thermal gradient between the middle Cretaceous climatic optimum an...
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Online Access: | https://doi.org/10.1130/G23103A.1 https://hal.archives-ouvertes.fr/hal-00173763 |
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fttriple:oai:gotriple.eu:10670/1.bcyha3 2023-05-15T18:00:54+02:00 Fish tooth δ18O revising Late Cretaceous meridional upper ocean water temperature gradients Pucéat, Emmanuelle Lécuyer, Christophe Donnadieu, Yannick Naveau, Philippe Cappetta, Henri Ramstein, Gilles T. Huber, Brian Kriwet, Juergen Biogéosciences UMR 6282 Dijon (BGS) Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS) PaleoEnvironnements et PaleobioSphere (PEPS) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) 2007-01-01 https://doi.org/10.1130/G23103A.1 https://hal.archives-ouvertes.fr/hal-00173763 en eng HAL CCSD Geological Society of America hal-00173763 doi:10.1130/G23103A.1 10670/1.bcyha3 https://hal.archives-ouvertes.fr/hal-00173763 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0091-7613 EISSN: 0091-7613 Geology Geology, Geological Society of America, 2007, 35 (2), pp.107-110. ⟨10.1130/G23103A.1⟩ Cretaceous climate oxygen isotopes apatite geo archeo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2007 fttriple https://doi.org/10.1130/G23103A.1 2023-01-22T18:30:02Z International audience The oxygen isotope composition of fossil fi sh teeth, a paleo– upper ocean temperature proxy exceptionally resistant to diagenetic alteration, provides new insight on the evolution of the low- to middlelatitude thermal gradient between the middle Cretaceous climatic optimum and the cooler latest Cretaceous period. The new middle Cretaceous low to middle latitude thermal gradient agrees with that previously inferred from planktonic foraminifera δ 18O recovered from Deep Sea Drilling Project and Ocean Drilling Program drilling sites, although the isotopic temperatures derived from δ 18O of fish teeth are uniformly higher by ~3–4 °C. In contrast, our new latest Cretaceous thermal gradient is markedly steeper than those previously published for this period. Fish tooth δ18O data demonstrate that low- to middle-latitude thermal gradients of the middle Cretaceous climatic optimum and of the cooler latest Cretaceous are similar to the modern one, despite a cooling of 7 °C between the two periods. Our new results imply that no drastic changes in meridional heat transport are required to explain the Late Cretaceous climate. Based on climate models, such a cooling without any change in the low to middle latitude thermal gradient supports an atmospheric CO2 decrease as the primary driver of the climatic evolution recorded during the Late Cretaceous. Article in Journal/Newspaper Planktonic foraminifera Unknown Geology 35 2 107 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Cretaceous climate oxygen isotopes apatite geo archeo |
spellingShingle |
Cretaceous climate oxygen isotopes apatite geo archeo Pucéat, Emmanuelle Lécuyer, Christophe Donnadieu, Yannick Naveau, Philippe Cappetta, Henri Ramstein, Gilles T. Huber, Brian Kriwet, Juergen Fish tooth δ18O revising Late Cretaceous meridional upper ocean water temperature gradients |
topic_facet |
Cretaceous climate oxygen isotopes apatite geo archeo |
description |
International audience The oxygen isotope composition of fossil fi sh teeth, a paleo– upper ocean temperature proxy exceptionally resistant to diagenetic alteration, provides new insight on the evolution of the low- to middlelatitude thermal gradient between the middle Cretaceous climatic optimum and the cooler latest Cretaceous period. The new middle Cretaceous low to middle latitude thermal gradient agrees with that previously inferred from planktonic foraminifera δ 18O recovered from Deep Sea Drilling Project and Ocean Drilling Program drilling sites, although the isotopic temperatures derived from δ 18O of fish teeth are uniformly higher by ~3–4 °C. In contrast, our new latest Cretaceous thermal gradient is markedly steeper than those previously published for this period. Fish tooth δ18O data demonstrate that low- to middle-latitude thermal gradients of the middle Cretaceous climatic optimum and of the cooler latest Cretaceous are similar to the modern one, despite a cooling of 7 °C between the two periods. Our new results imply that no drastic changes in meridional heat transport are required to explain the Late Cretaceous climate. Based on climate models, such a cooling without any change in the low to middle latitude thermal gradient supports an atmospheric CO2 decrease as the primary driver of the climatic evolution recorded during the Late Cretaceous. |
author2 |
Biogéosciences UMR 6282 Dijon (BGS) Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS) PaleoEnvironnements et PaleobioSphere (PEPS) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Pucéat, Emmanuelle Lécuyer, Christophe Donnadieu, Yannick Naveau, Philippe Cappetta, Henri Ramstein, Gilles T. Huber, Brian Kriwet, Juergen |
author_facet |
Pucéat, Emmanuelle Lécuyer, Christophe Donnadieu, Yannick Naveau, Philippe Cappetta, Henri Ramstein, Gilles T. Huber, Brian Kriwet, Juergen |
author_sort |
Pucéat, Emmanuelle |
title |
Fish tooth δ18O revising Late Cretaceous meridional upper ocean water temperature gradients |
title_short |
Fish tooth δ18O revising Late Cretaceous meridional upper ocean water temperature gradients |
title_full |
Fish tooth δ18O revising Late Cretaceous meridional upper ocean water temperature gradients |
title_fullStr |
Fish tooth δ18O revising Late Cretaceous meridional upper ocean water temperature gradients |
title_full_unstemmed |
Fish tooth δ18O revising Late Cretaceous meridional upper ocean water temperature gradients |
title_sort |
fish tooth δ18o revising late cretaceous meridional upper ocean water temperature gradients |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://doi.org/10.1130/G23103A.1 https://hal.archives-ouvertes.fr/hal-00173763 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0091-7613 EISSN: 0091-7613 Geology Geology, Geological Society of America, 2007, 35 (2), pp.107-110. ⟨10.1130/G23103A.1⟩ |
op_relation |
hal-00173763 doi:10.1130/G23103A.1 10670/1.bcyha3 https://hal.archives-ouvertes.fr/hal-00173763 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1130/G23103A.1 |
container_title |
Geology |
container_volume |
35 |
container_issue |
2 |
container_start_page |
107 |
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1766170181067866112 |