Ice magnetization in the EPICA-Dome C ice core: Implication for dust sources during glacial and interglacial periods
International audience Isothermal remanent magnetization and insoluble dust content of ice samples from EPICA-Dome C ice core were measured to characterize the magnetic properties of atmospheric dust. Despite the larger concentration of dust aerosol during glacial stages, the magnetization of the du...
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ftinsu:oai:HAL:insu-00378534v1 2024-04-28T08:17:55+00:00 Ice magnetization in the EPICA-Dome C ice core: Implication for dust sources during glacial and interglacial periods Lanci, L. Delmonte, Barbara Maggi, V. Petit, Jean-Robert Kent, D.V. Istituto di Scienze della Terra Università di Urbino Dipartimento di Scienze dell'Ambiente e del Territorio (DISAT) Università degli Studi di Milano = University of Milan (UNIMI) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Earth and Planetary Sciences Piscataway Rutgers, The State University of New Jersey New Brunswick (RU) Rutgers University System (Rutgers)-Rutgers University System (Rutgers) Lamont-Doherty Earth Observatory (LDEO) Columbia University New York European Project for Ice Coring in Antarctica (EPICA) 2008 https://insu.hal.science/insu-00378534 https://insu.hal.science/insu-00378534/document https://insu.hal.science/insu-00378534/file/2007JD009678.pdf https://doi.org/10.1029/2007JD009678 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2007JD009678 insu-00378534 https://insu.hal.science/insu-00378534 https://insu.hal.science/insu-00378534/document https://insu.hal.science/insu-00378534/file/2007JD009678.pdf doi:10.1029/2007JD009678 info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://insu.hal.science/insu-00378534 Journal of Geophysical Research: Atmospheres, 2008, 113 (D14207), 1 à 7 p. ⟨10.1029/2007JD009678⟩ Atmospheric dust ice magnetization insoluble dust [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2008 ftinsu https://doi.org/10.1029/2007JD009678 2024-04-05T00:38:11Z International audience Isothermal remanent magnetization and insoluble dust content of ice samples from EPICA-Dome C ice core were measured to characterize the magnetic properties of atmospheric dust. Despite the larger concentration of dust aerosol during glacial stages, the magnetization of the dust fraction was found to be higher during interglacials and exhibits a larger variability. Changes in magnetic mineralogy of aerosol dust in ice from different climatic stages were also characterized using coercivity of remanence. Variations of magnetic properties of dust from glacial to interglacial stages indicate changes in dust provenance, in agreement with previous results based on geochemical analysis. However, the extremely large magnetizations of some interglacial samples also suggest that episodical eolian deposition from highly magnetic deposits occurred during interglacial periods. Article in Journal/Newspaper EPICA ice core Institut national des sciences de l'Univers: HAL-INSU Journal of Geophysical Research 113 D14 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
Atmospheric dust ice magnetization insoluble dust [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
Atmospheric dust ice magnetization insoluble dust [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Lanci, L. Delmonte, Barbara Maggi, V. Petit, Jean-Robert Kent, D.V. Ice magnetization in the EPICA-Dome C ice core: Implication for dust sources during glacial and interglacial periods |
topic_facet |
Atmospheric dust ice magnetization insoluble dust [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience Isothermal remanent magnetization and insoluble dust content of ice samples from EPICA-Dome C ice core were measured to characterize the magnetic properties of atmospheric dust. Despite the larger concentration of dust aerosol during glacial stages, the magnetization of the dust fraction was found to be higher during interglacials and exhibits a larger variability. Changes in magnetic mineralogy of aerosol dust in ice from different climatic stages were also characterized using coercivity of remanence. Variations of magnetic properties of dust from glacial to interglacial stages indicate changes in dust provenance, in agreement with previous results based on geochemical analysis. However, the extremely large magnetizations of some interglacial samples also suggest that episodical eolian deposition from highly magnetic deposits occurred during interglacial periods. |
author2 |
Istituto di Scienze della Terra Università di Urbino Dipartimento di Scienze dell'Ambiente e del Territorio (DISAT) Università degli Studi di Milano = University of Milan (UNIMI) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Earth and Planetary Sciences Piscataway Rutgers, The State University of New Jersey New Brunswick (RU) Rutgers University System (Rutgers)-Rutgers University System (Rutgers) Lamont-Doherty Earth Observatory (LDEO) Columbia University New York European Project for Ice Coring in Antarctica (EPICA) |
format |
Article in Journal/Newspaper |
author |
Lanci, L. Delmonte, Barbara Maggi, V. Petit, Jean-Robert Kent, D.V. |
author_facet |
Lanci, L. Delmonte, Barbara Maggi, V. Petit, Jean-Robert Kent, D.V. |
author_sort |
Lanci, L. |
title |
Ice magnetization in the EPICA-Dome C ice core: Implication for dust sources during glacial and interglacial periods |
title_short |
Ice magnetization in the EPICA-Dome C ice core: Implication for dust sources during glacial and interglacial periods |
title_full |
Ice magnetization in the EPICA-Dome C ice core: Implication for dust sources during glacial and interglacial periods |
title_fullStr |
Ice magnetization in the EPICA-Dome C ice core: Implication for dust sources during glacial and interglacial periods |
title_full_unstemmed |
Ice magnetization in the EPICA-Dome C ice core: Implication for dust sources during glacial and interglacial periods |
title_sort |
ice magnetization in the epica-dome c ice core: implication for dust sources during glacial and interglacial periods |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://insu.hal.science/insu-00378534 https://insu.hal.science/insu-00378534/document https://insu.hal.science/insu-00378534/file/2007JD009678.pdf https://doi.org/10.1029/2007JD009678 |
genre |
EPICA ice core |
genre_facet |
EPICA ice core |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://insu.hal.science/insu-00378534 Journal of Geophysical Research: Atmospheres, 2008, 113 (D14207), 1 à 7 p. ⟨10.1029/2007JD009678⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2007JD009678 insu-00378534 https://insu.hal.science/insu-00378534 https://insu.hal.science/insu-00378534/document https://insu.hal.science/insu-00378534/file/2007JD009678.pdf doi:10.1029/2007JD009678 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2007JD009678 |
container_title |
Journal of Geophysical Research |
container_volume |
113 |
container_issue |
D14 |
_version_ |
1797582190324744192 |