Trace elements variations in polar ice during the late quartenary with special emphasis on cosmic fallout
The determination of trace elements in deep polar ice cores provides important environmental information concerning natural sources, long-range transport and deposition processes of the aerosol during the late Quaternary (Iast few hundred thousands years). ln this work, we have measured various trac...
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Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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HAL CCSD
2004
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Online Access: | https://theses.hal.science/tel-00759863 https://theses.hal.science/tel-00759863/document https://theses.hal.science/tel-00759863/file/These-Gabrielli-2004.pdf |
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ftunivsavoie:oai:HAL:tel-00759863v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université Savoie Mont Blanc: HAL |
op_collection_id |
ftunivsavoie |
language |
English |
topic |
éléments trace carottes glaciaires aérosols Quaternaire Vostok Dome C/Epica GRIP [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
éléments trace carottes glaciaires aérosols Quaternaire Vostok Dome C/Epica GRIP [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Gabrielli, Paolo Trace elements variations in polar ice during the late quartenary with special emphasis on cosmic fallout |
topic_facet |
éléments trace carottes glaciaires aérosols Quaternaire Vostok Dome C/Epica GRIP [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
The determination of trace elements in deep polar ice cores provides important environmental information concerning natural sources, long-range transport and deposition processes of the aerosol during the late Quaternary (Iast few hundred thousands years). ln this work, we have measured various trace elements (Li, Mg, V, Cr, Mn, Co, Cu, As, Rb, Sr, Cd, Ba, Ir, Pt, Hg (including MeHg and Hg2+), Pb (including Pb isotopes), Bi and U) in various sections of three deep ice cores which were drilled in Antarctica and Greenland as a part of international programmes: the Dome C/EPICA ice core (past -220 kyr), the Vostok ice core (past -410 kyr) and the GRIP ice core (past -100 kyr). The analyses were performed by Inductively Coupled Plasma Sector Field Mass Spectrometry, Thermallonization Mass Spectrometry and Inductively Coupled Plasma Time of Flight Sector Field Mass Spectrometry, in clean room conditions. The results obtained for Ir and Pt shows evidence of the past fallout of vaporization and re-condensation products of meteoroids, the "meteoric smoke", to the polar ice caps. The meteoric smoke influx was used to estimate the past accretion rate of interplanetary dust particles to the Earth and to identify ancient changes in the Antarctic atmospheric circulation such as an enhanced subsidence onto the East Antarctic plateau during cold climatic stages. L'analyse des éléments traces dans les carottes de glace profondes provenant des régions polaires apportent de précieuses informations environnementales sur les sources naturelles de ces éléments, le transport longue distance de ces éléments et les mécanismes de dépôts des aérosols au cours du Quaternaire récent (les dernières centaines de milliers d'années). Dans cette étude, nous avons mesuré de nombreux éléments traces (Li, Mg, V, Cr, Mn, Co, Cu, As, Rb Sr, Cd, Ba, Ir, Pt, Hg (incluant MeHg et Hg2+), Pb (et les isotopes du Pb), Bi et U) dans diverses sections de trois carottes de glace profondes qui ont été forées en Antarctique et au Groenland dans le cadre de ... |
author2 |
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) Université Joseph-Fourier - Grenoble I Carlo Barbante Claude Boutron |
format |
Doctoral or Postdoctoral Thesis |
author |
Gabrielli, Paolo |
author_facet |
Gabrielli, Paolo |
author_sort |
Gabrielli, Paolo |
title |
Trace elements variations in polar ice during the late quartenary with special emphasis on cosmic fallout |
title_short |
Trace elements variations in polar ice during the late quartenary with special emphasis on cosmic fallout |
title_full |
Trace elements variations in polar ice during the late quartenary with special emphasis on cosmic fallout |
title_fullStr |
Trace elements variations in polar ice during the late quartenary with special emphasis on cosmic fallout |
title_full_unstemmed |
Trace elements variations in polar ice during the late quartenary with special emphasis on cosmic fallout |
title_sort |
trace elements variations in polar ice during the late quartenary with special emphasis on cosmic fallout |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://theses.hal.science/tel-00759863 https://theses.hal.science/tel-00759863/document https://theses.hal.science/tel-00759863/file/These-Gabrielli-2004.pdf |
genre |
Antarc* Antarctic Antarctica Antarctique* EPICA Greenland GRIP Groenland ice core |
genre_facet |
Antarc* Antarctic Antarctica Antarctique* EPICA Greenland GRIP Groenland ice core |
op_source |
https://theses.hal.science/tel-00759863 Glaciology. Université Joseph-Fourier - Grenoble I, 2004. English. ⟨NNT : ⟩ |
op_relation |
tel-00759863 https://theses.hal.science/tel-00759863 https://theses.hal.science/tel-00759863/document https://theses.hal.science/tel-00759863/file/These-Gabrielli-2004.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1797573628198387712 |
spelling |
ftunivsavoie:oai:HAL:tel-00759863v1 2024-04-28T08:02:11+00:00 Trace elements variations in polar ice during the late quartenary with special emphasis on cosmic fallout Variation des éléments présents à l'état de traces dans les glaces polaires pendant la fin du quartenaire, notamment en liaison avec les retombées de matière extraterrestre Gabrielli, Paolo 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) Université Joseph-Fourier - Grenoble I Carlo Barbante Claude Boutron 2004-10-26 https://theses.hal.science/tel-00759863 https://theses.hal.science/tel-00759863/document https://theses.hal.science/tel-00759863/file/These-Gabrielli-2004.pdf en eng HAL CCSD tel-00759863 https://theses.hal.science/tel-00759863 https://theses.hal.science/tel-00759863/document https://theses.hal.science/tel-00759863/file/These-Gabrielli-2004.pdf info:eu-repo/semantics/OpenAccess https://theses.hal.science/tel-00759863 Glaciology. Université Joseph-Fourier - Grenoble I, 2004. English. ⟨NNT : ⟩ éléments trace carottes glaciaires aérosols Quaternaire Vostok Dome C/Epica GRIP [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/doctoralThesis Theses 2004 ftunivsavoie 2024-04-11T00:14:29Z The determination of trace elements in deep polar ice cores provides important environmental information concerning natural sources, long-range transport and deposition processes of the aerosol during the late Quaternary (Iast few hundred thousands years). ln this work, we have measured various trace elements (Li, Mg, V, Cr, Mn, Co, Cu, As, Rb, Sr, Cd, Ba, Ir, Pt, Hg (including MeHg and Hg2+), Pb (including Pb isotopes), Bi and U) in various sections of three deep ice cores which were drilled in Antarctica and Greenland as a part of international programmes: the Dome C/EPICA ice core (past -220 kyr), the Vostok ice core (past -410 kyr) and the GRIP ice core (past -100 kyr). The analyses were performed by Inductively Coupled Plasma Sector Field Mass Spectrometry, Thermallonization Mass Spectrometry and Inductively Coupled Plasma Time of Flight Sector Field Mass Spectrometry, in clean room conditions. The results obtained for Ir and Pt shows evidence of the past fallout of vaporization and re-condensation products of meteoroids, the "meteoric smoke", to the polar ice caps. The meteoric smoke influx was used to estimate the past accretion rate of interplanetary dust particles to the Earth and to identify ancient changes in the Antarctic atmospheric circulation such as an enhanced subsidence onto the East Antarctic plateau during cold climatic stages. L'analyse des éléments traces dans les carottes de glace profondes provenant des régions polaires apportent de précieuses informations environnementales sur les sources naturelles de ces éléments, le transport longue distance de ces éléments et les mécanismes de dépôts des aérosols au cours du Quaternaire récent (les dernières centaines de milliers d'années). Dans cette étude, nous avons mesuré de nombreux éléments traces (Li, Mg, V, Cr, Mn, Co, Cu, As, Rb Sr, Cd, Ba, Ir, Pt, Hg (incluant MeHg et Hg2+), Pb (et les isotopes du Pb), Bi et U) dans diverses sections de trois carottes de glace profondes qui ont été forées en Antarctique et au Groenland dans le cadre de ... Doctoral or Postdoctoral Thesis Antarc* Antarctic Antarctica Antarctique* EPICA Greenland GRIP Groenland ice core Université Savoie Mont Blanc: HAL |