Coupled modeling of global carbon cycle and climate in the Neoproterozoic: links between Rodinia breakup and major glaciations Modélisation couplée du cycle du carbone et du climat au Néoprotérozoïque : liens entre la dislocation du supercontinent Rodinia et les glaciations majeures
International audience A coupled climate–geochemical model of new generation (GEOCLIM) is used to investigate the possible causes of the initiation of snowball glaciations during Neoproterozoic times. This model allows the calculation of the partial pressure of atmospheric CO2 simultaneously with th...
Published in: | Comptes Rendus Geoscience |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2007
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Subjects: | |
Online Access: | https://hal.science/hal-00311340 https://doi.org/10.1016/j.crte.2005.12.002 |
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ftunivnantes:oai:HAL:hal-00311340v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Climates Neoproterozoic Rodinia carbon Modélisation numérique Cycle du carbone Néoprotérozoïque Rodinia Numerical modeling Carbon cycle [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology |
spellingShingle |
Climates Neoproterozoic Rodinia carbon Modélisation numérique Cycle du carbone Néoprotérozoïque Rodinia Numerical modeling Carbon cycle [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology Goddéris, Yves Donnadieu, Yannick Dessert, Céline Dupré, Bernard Fluteau, Frédéric M. François, Louis Meert, Joseph Nédélec, Anne Ramstein, Gilles Coupled modeling of global carbon cycle and climate in the Neoproterozoic: links between Rodinia breakup and major glaciations Modélisation couplée du cycle du carbone et du climat au Néoprotérozoïque : liens entre la dislocation du supercontinent Rodinia et les glaciations majeures |
topic_facet |
Climates Neoproterozoic Rodinia carbon Modélisation numérique Cycle du carbone Néoprotérozoïque Rodinia Numerical modeling Carbon cycle [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology |
description |
International audience A coupled climate–geochemical model of new generation (GEOCLIM) is used to investigate the possible causes of the initiation of snowball glaciations during Neoproterozoic times. This model allows the calculation of the partial pressure of atmospheric CO2 simultaneously with the climate at the continental surface with a rough 2D spatial resolution (10° lat. × 50° long.). We calculate that the breakup of the Rodinia supercontinent, starting 800 Myr ago, results in a global climatic cooling of about 8 °C triggered by enhanced consumption of atmospheric CO2 resulting from increased runoff over continental surfaces. This increase in runoff is driven by the opening of oceanic basins resulting in an increase of soil moisture sources close to continental masses. This climatic effect of the supercontinent breakup is particularly strong within the 800–700 Ma interval since all continents are located in the equatorial area, where temperature and runoff conditions optimize the consumption of CO2 through weathering processes. However, this effect alone is insufficient to trigger snowball. We propose that the efficient weathering of fresh basaltic surfaces that erupted during the Rodinia breakup, and were transported to the humid equatorial area through continental plate motion, contributed the necessary CO2 sink that triggered the ca. 730-Ma Sturtian glacial event. Simulations of the GEOCLIM model for the ca 580-Ma Gaskiers ice age, where all continents are centered on the South Pole, shows that no snowball glaciation can be initiated. The calculated CO2 partial pressure remains above 1000 ppmv, while a threshold of less than 80 ppmv is required to initiate a snowball glaciation. At that time, a polar configuration does not allow the onset of total glaciation. Nevertheless, a regional glaciation is simulated by the GEOCLIM when the climatic and geochemical (i.e. weathering related) effects of the Pan-African orogeny (not, vert, similar600 Ma) are taken into account. Finally, the question of the role ... |
author2 |
Laboratoire des Mécanismes et Transfert en Géologie (LMTG) Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) 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) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) Modélisation du climat (CLIM) 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)-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 |
Goddéris, Yves Donnadieu, Yannick Dessert, Céline Dupré, Bernard Fluteau, Frédéric M. François, Louis Meert, Joseph Nédélec, Anne Ramstein, Gilles |
author_facet |
Goddéris, Yves Donnadieu, Yannick Dessert, Céline Dupré, Bernard Fluteau, Frédéric M. François, Louis Meert, Joseph Nédélec, Anne Ramstein, Gilles |
author_sort |
Goddéris, Yves |
title |
Coupled modeling of global carbon cycle and climate in the Neoproterozoic: links between Rodinia breakup and major glaciations Modélisation couplée du cycle du carbone et du climat au Néoprotérozoïque : liens entre la dislocation du supercontinent Rodinia et les glaciations majeures |
title_short |
Coupled modeling of global carbon cycle and climate in the Neoproterozoic: links between Rodinia breakup and major glaciations Modélisation couplée du cycle du carbone et du climat au Néoprotérozoïque : liens entre la dislocation du supercontinent Rodinia et les glaciations majeures |
title_full |
Coupled modeling of global carbon cycle and climate in the Neoproterozoic: links between Rodinia breakup and major glaciations Modélisation couplée du cycle du carbone et du climat au Néoprotérozoïque : liens entre la dislocation du supercontinent Rodinia et les glaciations majeures |
title_fullStr |
Coupled modeling of global carbon cycle and climate in the Neoproterozoic: links between Rodinia breakup and major glaciations Modélisation couplée du cycle du carbone et du climat au Néoprotérozoïque : liens entre la dislocation du supercontinent Rodinia et les glaciations majeures |
title_full_unstemmed |
Coupled modeling of global carbon cycle and climate in the Neoproterozoic: links between Rodinia breakup and major glaciations Modélisation couplée du cycle du carbone et du climat au Néoprotérozoïque : liens entre la dislocation du supercontinent Rodinia et les glaciations majeures |
title_sort |
coupled modeling of global carbon cycle and climate in the neoproterozoic: links between rodinia breakup and major glaciations modélisation couplée du cycle du carbone et du climat au néoprotérozoïque : liens entre la dislocation du supercontinent rodinia et les glaciations majeures |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00311340 https://doi.org/10.1016/j.crte.2005.12.002 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Comptes Rendus Géoscience https://hal.science/hal-00311340 Comptes Rendus Géoscience, 2007, 339, pp.212-222. ⟨10.1016/j.crte.2005.12.002⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.crte.2005.12.002 hal-00311340 https://hal.science/hal-00311340 doi:10.1016/j.crte.2005.12.002 |
op_doi |
https://doi.org/10.1016/j.crte.2005.12.002 |
container_title |
Comptes Rendus Geoscience |
container_volume |
339 |
container_issue |
3-4 |
container_start_page |
212 |
op_container_end_page |
222 |
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1766202944335642624 |
spelling |
ftunivnantes:oai:HAL:hal-00311340v1 2023-05-15T18:23:22+02:00 Coupled modeling of global carbon cycle and climate in the Neoproterozoic: links between Rodinia breakup and major glaciations Modélisation couplée du cycle du carbone et du climat au Néoprotérozoïque : liens entre la dislocation du supercontinent Rodinia et les glaciations majeures Goddéris, Yves Donnadieu, Yannick Dessert, Céline Dupré, Bernard Fluteau, Frédéric M. François, Louis Meert, Joseph Nédélec, Anne Ramstein, Gilles Laboratoire des Mécanismes et Transfert en Géologie (LMTG) Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) 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) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) Modélisation du climat (CLIM) 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)-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 https://hal.science/hal-00311340 https://doi.org/10.1016/j.crte.2005.12.002 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.crte.2005.12.002 hal-00311340 https://hal.science/hal-00311340 doi:10.1016/j.crte.2005.12.002 Comptes Rendus Géoscience https://hal.science/hal-00311340 Comptes Rendus Géoscience, 2007, 339, pp.212-222. ⟨10.1016/j.crte.2005.12.002⟩ Climates Neoproterozoic Rodinia carbon Modélisation numérique Cycle du carbone Néoprotérozoïque Rodinia Numerical modeling Carbon cycle [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology info:eu-repo/semantics/article Journal articles 2007 ftunivnantes https://doi.org/10.1016/j.crte.2005.12.002 2023-02-22T04:06:42Z International audience A coupled climate–geochemical model of new generation (GEOCLIM) is used to investigate the possible causes of the initiation of snowball glaciations during Neoproterozoic times. This model allows the calculation of the partial pressure of atmospheric CO2 simultaneously with the climate at the continental surface with a rough 2D spatial resolution (10° lat. × 50° long.). We calculate that the breakup of the Rodinia supercontinent, starting 800 Myr ago, results in a global climatic cooling of about 8 °C triggered by enhanced consumption of atmospheric CO2 resulting from increased runoff over continental surfaces. This increase in runoff is driven by the opening of oceanic basins resulting in an increase of soil moisture sources close to continental masses. This climatic effect of the supercontinent breakup is particularly strong within the 800–700 Ma interval since all continents are located in the equatorial area, where temperature and runoff conditions optimize the consumption of CO2 through weathering processes. However, this effect alone is insufficient to trigger snowball. We propose that the efficient weathering of fresh basaltic surfaces that erupted during the Rodinia breakup, and were transported to the humid equatorial area through continental plate motion, contributed the necessary CO2 sink that triggered the ca. 730-Ma Sturtian glacial event. Simulations of the GEOCLIM model for the ca 580-Ma Gaskiers ice age, where all continents are centered on the South Pole, shows that no snowball glaciation can be initiated. The calculated CO2 partial pressure remains above 1000 ppmv, while a threshold of less than 80 ppmv is required to initiate a snowball glaciation. At that time, a polar configuration does not allow the onset of total glaciation. Nevertheless, a regional glaciation is simulated by the GEOCLIM when the climatic and geochemical (i.e. weathering related) effects of the Pan-African orogeny (not, vert, similar600 Ma) are taken into account. Finally, the question of the role ... Article in Journal/Newspaper South pole Université de Nantes: HAL-UNIV-NANTES South Pole Comptes Rendus Geoscience 339 3-4 212 222 |