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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ftmeteofrance:oai:HAL:hal-03266963v1 2024-06-23T07:47:11+00:00 The Subantarctic lithospheric mantle Delpech, Guillaume Scott, James, M Grégoire, Michel Moine, Bertrand N. Li, Dongxu Liu, Jingao Pearson, D. Graham, Graham van Der Meer, Quinten, H A Waight, Tod, E Michon, Gilbert Guillaume, Damien O'Reilly, Suzanne, y 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 de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-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 Magmas et Volcans (LMV) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-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.science/hal-03266963 https://hal.science/hal-03266963/document https://hal.science/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.science/hal-03266963 https://hal.science/hal-03266963/document https://hal.science/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.science/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 ftmeteofrance https://doi.org/10.1144/M56-2020-13 2024-06-10T23:51:13Z 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 Météo-France: HAL Antarctic The Antarctic Kerguelen Kerguelen Islands Pacific Indian Geological Society, London, Memoirs M56-2020-13 |
institution |
Open Polar |
collection |
Météo-France: HAL |
op_collection_id |
ftmeteofrance |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Delpech, Guillaume Scott, James, M Grégoire, Michel Moine, Bertrand N. Li, Dongxu Liu, Jingao Pearson, D. Graham, Graham van Der Meer, Quinten, H A Waight, Tod, E Michon, Gilbert Guillaume, Damien O'Reilly, Suzanne, y 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 de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-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 Magmas et Volcans (LMV) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-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, M Grégoire, Michel Moine, Bertrand N. Li, Dongxu Liu, Jingao Pearson, D. Graham, Graham van Der Meer, Quinten, H A Waight, Tod, E Michon, Gilbert Guillaume, Damien O'Reilly, Suzanne, y Cottin, Jean-Yves Giret, André |
author_facet |
Delpech, Guillaume Scott, James, M Grégoire, Michel Moine, Bertrand N. Li, Dongxu Liu, Jingao Pearson, D. Graham, Graham van Der Meer, Quinten, H A Waight, Tod, E Michon, Gilbert Guillaume, Damien O'Reilly, Suzanne, y 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.science/hal-03266963 https://hal.science/hal-03266963/document https://hal.science/hal-03266963/file/Geol_SocL_2021.pdf https://doi.org/10.1144/M56-2020-13 |
geographic |
Antarctic The Antarctic Kerguelen Kerguelen Islands Pacific Indian |
geographic_facet |
Antarctic The Antarctic Kerguelen Kerguelen Islands Pacific Indian |
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.science/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.science/hal-03266963 https://hal.science/hal-03266963/document https://hal.science/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 |
_version_ |
1802651268571725824 |