The Importance of Icelandic Ice Sheet Growth and Retreat on Mantle CO 2 Flux
International audience Climate cycles may significantly affect the eruptive behavior of terrestrial volcanoes due to pressure changes caused by glacial loading, which raises the possibility that climate change may modulate CO2 degassing via volcanism. In Iceland, magmatism is likely to have been inf...
Published in: | Geophysical Research Letters |
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-02919791 https://hal-insu.archives-ouvertes.fr/insu-02919791/document https://hal-insu.archives-ouvertes.fr/insu-02919791/file/Armitage_et_al-2019-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2019GL081955 |
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ftccsdartic:oai:HAL:insu-02919791v1 2023-05-15T16:40:12+02:00 The Importance of Icelandic Ice Sheet Growth and Retreat on Mantle CO 2 Flux Armitage, John Ferguson, David Petersen, Kenni Creyts, Timothy Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP) School of Earth and Environment Leeds (SEE) University of Leeds Aarhus University Aarhus Lamont-Doherty Earth Observatory (LDEO) Columbia University New York French National Research Agency (ANR) 2019 https://hal-insu.archives-ouvertes.fr/insu-02919791 https://hal-insu.archives-ouvertes.fr/insu-02919791/document https://hal-insu.archives-ouvertes.fr/insu-02919791/file/Armitage_et_al-2019-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2019GL081955 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2019GL081955 insu-02919791 https://hal-insu.archives-ouvertes.fr/insu-02919791 https://hal-insu.archives-ouvertes.fr/insu-02919791/document https://hal-insu.archives-ouvertes.fr/insu-02919791/file/Armitage_et_al-2019-Geophysical_Research_Letters.pdf doi:10.1029/2019GL081955 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal-insu.archives-ouvertes.fr/insu-02919791 Geophysical Research Letters, American Geophysical Union, 2019, 46 (12), pp.6451-6458. ⟨10.1029/2019GL081955⟩ VELOCITY EMISSIONS INVERSION CALIFORNIA THOLEIITES SENSITIVITY DEGLACIATION RIDGE VOLCANISM SEA-LEVEL [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2019 ftccsdartic https://doi.org/10.1029/2019GL081955 2021-10-24T00:45:25Z International audience Climate cycles may significantly affect the eruptive behavior of terrestrial volcanoes due to pressure changes caused by glacial loading, which raises the possibility that climate change may modulate CO2 degassing via volcanism. In Iceland, magmatism is likely to have been influenced by glacial activity. To explore if deglaciation therefore impacted CO2 flux, we coupled a model of glacial loading over the last similar to 120 ka to melt generation and transport. We find that a nuanced relationship exists between magmatism and glacial activity. Enhanced CO2 degassing happened prior to the main phase of late-Pleistocene deglaciation, and it is sensitive to the duration of the growth of the ice sheet entering into the Last Glacial Maximum (LGM), as well as the rate of ice loss. Ice sheet growth depresses melting in the upper mantle, creating a delayed pulse of CO2 out-gassing, as the magmatic system recovers from the effects of loading. Article in Journal/Newspaper Ice Sheet Iceland Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Geophysical Research Letters 46 12 6451 6458 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
VELOCITY EMISSIONS INVERSION CALIFORNIA THOLEIITES SENSITIVITY DEGLACIATION RIDGE VOLCANISM SEA-LEVEL [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
VELOCITY EMISSIONS INVERSION CALIFORNIA THOLEIITES SENSITIVITY DEGLACIATION RIDGE VOLCANISM SEA-LEVEL [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Armitage, John Ferguson, David Petersen, Kenni Creyts, Timothy The Importance of Icelandic Ice Sheet Growth and Retreat on Mantle CO 2 Flux |
topic_facet |
VELOCITY EMISSIONS INVERSION CALIFORNIA THOLEIITES SENSITIVITY DEGLACIATION RIDGE VOLCANISM SEA-LEVEL [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience Climate cycles may significantly affect the eruptive behavior of terrestrial volcanoes due to pressure changes caused by glacial loading, which raises the possibility that climate change may modulate CO2 degassing via volcanism. In Iceland, magmatism is likely to have been influenced by glacial activity. To explore if deglaciation therefore impacted CO2 flux, we coupled a model of glacial loading over the last similar to 120 ka to melt generation and transport. We find that a nuanced relationship exists between magmatism and glacial activity. Enhanced CO2 degassing happened prior to the main phase of late-Pleistocene deglaciation, and it is sensitive to the duration of the growth of the ice sheet entering into the Last Glacial Maximum (LGM), as well as the rate of ice loss. Ice sheet growth depresses melting in the upper mantle, creating a delayed pulse of CO2 out-gassing, as the magmatic system recovers from the effects of loading. |
author2 |
Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP) School of Earth and Environment Leeds (SEE) University of Leeds Aarhus University Aarhus Lamont-Doherty Earth Observatory (LDEO) Columbia University New York French National Research Agency (ANR) |
format |
Article in Journal/Newspaper |
author |
Armitage, John Ferguson, David Petersen, Kenni Creyts, Timothy |
author_facet |
Armitage, John Ferguson, David Petersen, Kenni Creyts, Timothy |
author_sort |
Armitage, John |
title |
The Importance of Icelandic Ice Sheet Growth and Retreat on Mantle CO 2 Flux |
title_short |
The Importance of Icelandic Ice Sheet Growth and Retreat on Mantle CO 2 Flux |
title_full |
The Importance of Icelandic Ice Sheet Growth and Retreat on Mantle CO 2 Flux |
title_fullStr |
The Importance of Icelandic Ice Sheet Growth and Retreat on Mantle CO 2 Flux |
title_full_unstemmed |
The Importance of Icelandic Ice Sheet Growth and Retreat on Mantle CO 2 Flux |
title_sort |
importance of icelandic ice sheet growth and retreat on mantle co 2 flux |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal-insu.archives-ouvertes.fr/insu-02919791 https://hal-insu.archives-ouvertes.fr/insu-02919791/document https://hal-insu.archives-ouvertes.fr/insu-02919791/file/Armitage_et_al-2019-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2019GL081955 |
genre |
Ice Sheet Iceland |
genre_facet |
Ice Sheet Iceland |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal-insu.archives-ouvertes.fr/insu-02919791 Geophysical Research Letters, American Geophysical Union, 2019, 46 (12), pp.6451-6458. ⟨10.1029/2019GL081955⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2019GL081955 insu-02919791 https://hal-insu.archives-ouvertes.fr/insu-02919791 https://hal-insu.archives-ouvertes.fr/insu-02919791/document https://hal-insu.archives-ouvertes.fr/insu-02919791/file/Armitage_et_al-2019-Geophysical_Research_Letters.pdf doi:10.1029/2019GL081955 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2019GL081955 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
12 |
container_start_page |
6451 |
op_container_end_page |
6458 |
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1766030580376403968 |