The Subantarctic lithospheric mantle
International audience We present a summary of peridotite in the Subantarctic (46 to 60°S) surrounding the Antarctic Plate. Peridotite xenoliths occur on Kerguelen and Auckland islands. Kerguelen islands are underlain by a plume whereas the Auckland Islands are part of continental Zealandia, which i...
Published in: | Geological Society, London, Memoirs |
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2021
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ftccsdartic:oai:HAL:hal-03266963v1 2023-05-15T13:31:10+02:00 The Subantarctic lithospheric mantle Delpech, Guillaume Scott, James, Grégoire, Michel Moine, Bertrand N. Li, Dongxu Liu, Jingao Pearson, D. Graham, van der Meer, Quinten, Waight, Tod, Michon, Gilbert Guillaume, Damien O'Reilly, Suzanne, Cottin, Jean-Yves Giret, André Géosciences Paris Saclay (GEOPS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Géosciences Environnement Toulouse (GET) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD) Laboratoire Magmas et Volcans (LMV) Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement et la société-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA) 2021-05-17 https://hal.archives-ouvertes.fr/hal-03266963 https://hal.archives-ouvertes.fr/hal-03266963/document https://hal.archives-ouvertes.fr/hal-03266963/file/Geol_SocL_2021.pdf https://doi.org/10.1144/M56-2020-13 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1144/M56-2020-13 hal-03266963 https://hal.archives-ouvertes.fr/hal-03266963 https://hal.archives-ouvertes.fr/hal-03266963/document https://hal.archives-ouvertes.fr/hal-03266963/file/Geol_SocL_2021.pdf doi:10.1144/M56-2020-13 info:eu-repo/semantics/OpenAccess The Geochemistry and Geophysics of the Antarctic Mantle https://hal.archives-ouvertes.fr/hal-03266963 The Geochemistry and Geophysics of the Antarctic Mantle, pp.M56-2020-13, 2021, ⟨10.1144/M56-2020-13⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/bookPart Book sections 2021 ftccsdartic https://doi.org/10.1144/M56-2020-13 2022-01-09T00:19:22Z International audience We present a summary of peridotite in the Subantarctic (46 to 60°S) surrounding the Antarctic Plate. Peridotite xenoliths occur on Kerguelen and Auckland islands. Kerguelen islands are underlain by a plume whereas the Auckland Islands are part of continental Zealandia, which is a Gondwana-rifted fragment. Small amounts of serpentinised peridotite has been dredged from fracture zones on the Southeast Indian, Southwest Indian, and Pacific Antarctic Ridge, and represents upwelled asthenosphere accreted to form lithosphere. Supra-subduction zone peridotite has been collected from two locations on the Sandwich Plate. Peridotites from most Subantarctic occurrences are moderately to highly depleted, and many show signs of subsequent metasomatic enrichment. Os isotopes indicate that the Subantarctic continental and oceanic lithospheric mantle contains ancient fragments that underwent depletion long before formation of the overlying crust. Book Part Antarc* Antarctic Auckland Islands Kerguelen Islands Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Indian Kerguelen Kerguelen Islands Pacific The Antarctic Geological Society, London, Memoirs M56-2020-13 |
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 |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Delpech, Guillaume Scott, James, Grégoire, Michel Moine, Bertrand N. Li, Dongxu Liu, Jingao Pearson, D. Graham, van der Meer, Quinten, Waight, Tod, Michon, Gilbert Guillaume, Damien O'Reilly, Suzanne, Cottin, Jean-Yves Giret, André The Subantarctic lithospheric mantle |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience We present a summary of peridotite in the Subantarctic (46 to 60°S) surrounding the Antarctic Plate. Peridotite xenoliths occur on Kerguelen and Auckland islands. Kerguelen islands are underlain by a plume whereas the Auckland Islands are part of continental Zealandia, which is a Gondwana-rifted fragment. Small amounts of serpentinised peridotite has been dredged from fracture zones on the Southeast Indian, Southwest Indian, and Pacific Antarctic Ridge, and represents upwelled asthenosphere accreted to form lithosphere. Supra-subduction zone peridotite has been collected from two locations on the Sandwich Plate. Peridotites from most Subantarctic occurrences are moderately to highly depleted, and many show signs of subsequent metasomatic enrichment. Os isotopes indicate that the Subantarctic continental and oceanic lithospheric mantle contains ancient fragments that underwent depletion long before formation of the overlying crust. |
author2 |
Géosciences Paris Saclay (GEOPS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Géosciences Environnement Toulouse (GET) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD) Laboratoire Magmas et Volcans (LMV) Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement et la société-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA) |
format |
Book Part |
author |
Delpech, Guillaume Scott, James, Grégoire, Michel Moine, Bertrand N. Li, Dongxu Liu, Jingao Pearson, D. Graham, van der Meer, Quinten, Waight, Tod, Michon, Gilbert Guillaume, Damien O'Reilly, Suzanne, Cottin, Jean-Yves Giret, André |
author_facet |
Delpech, Guillaume Scott, James, Grégoire, Michel Moine, Bertrand N. Li, Dongxu Liu, Jingao Pearson, D. Graham, van der Meer, Quinten, Waight, Tod, Michon, Gilbert Guillaume, Damien O'Reilly, Suzanne, Cottin, Jean-Yves Giret, André |
author_sort |
Delpech, Guillaume |
title |
The Subantarctic lithospheric mantle |
title_short |
The Subantarctic lithospheric mantle |
title_full |
The Subantarctic lithospheric mantle |
title_fullStr |
The Subantarctic lithospheric mantle |
title_full_unstemmed |
The Subantarctic lithospheric mantle |
title_sort |
subantarctic lithospheric mantle |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.archives-ouvertes.fr/hal-03266963 https://hal.archives-ouvertes.fr/hal-03266963/document https://hal.archives-ouvertes.fr/hal-03266963/file/Geol_SocL_2021.pdf https://doi.org/10.1144/M56-2020-13 |
geographic |
Antarctic Indian Kerguelen Kerguelen Islands Pacific The Antarctic |
geographic_facet |
Antarctic Indian Kerguelen Kerguelen Islands Pacific The Antarctic |
genre |
Antarc* Antarctic Auckland Islands Kerguelen Islands |
genre_facet |
Antarc* Antarctic Auckland Islands Kerguelen Islands |
op_source |
The Geochemistry and Geophysics of the Antarctic Mantle https://hal.archives-ouvertes.fr/hal-03266963 The Geochemistry and Geophysics of the Antarctic Mantle, pp.M56-2020-13, 2021, ⟨10.1144/M56-2020-13⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1144/M56-2020-13 hal-03266963 https://hal.archives-ouvertes.fr/hal-03266963 https://hal.archives-ouvertes.fr/hal-03266963/document https://hal.archives-ouvertes.fr/hal-03266963/file/Geol_SocL_2021.pdf doi:10.1144/M56-2020-13 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1144/M56-2020-13 |
container_title |
Geological Society, London, Memoirs |
container_start_page |
M56-2020-13 |
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1766016490659643392 |