Changes in atmospheric heavy metals and metalloids in Dome C (East Antarctica) ice back to 672.0 kyr BP (Marine Isotopic Stages 16.2)
Autor: | Paolo Cescon, Aurélien Dommergue, Kevin J.R. Rosman, Claude F. Boutron, Christophe Ferrari, Carlo Barbante, Alexandrine Marteel, Giulio Cozzi, Soon Do Hur, Paolo Gabrielli, Vania Gaspari, Sungmin Hong |
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Přispěvatelé: | Laboratoire de glaciologie et géophysique de l'environnement (LGGE), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), Environmental Sciences Department, University of Ca’ Foscari [Venice, Italy], Department of Earth Sciences [Siena], Università degli Studi di Siena (UNISI), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Unité de Formation et de Recherche de Physique, Université Joseph Fourier - Grenoble 1 (UJF), Institute for the Dynamics of Environmental Processes-CNR, Polytech' Grenoble, Department of Imaging and Applied Physics, Curtin University [Perth], Planning and Transport Research Centre (PATREC)-Planning and Transport Research Centre (PATREC), Korea Polar Research Institute (KOPRI), European Project for Ice Coring in Antarctica (EPICA), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-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 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), Università degli Studi di Siena = University of Siena (UNISI), 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) |
Jazyk: | angličtina |
Rok vydání: | 2008 |
Předmět: |
Biogeochemical cycle
metalloids 010504 meteorology & atmospheric sciences Dome Geochemistry 010501 environmental sciences climatic variations 01 natural sciences Altitude Ice core Geochemistry and Petrology Earth and Planetary Sciences (miscellaneous) Glacial period [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology heavy metals Holocene 0105 earth and related environmental sciences Dome C biogeochemical cycles Coring Geophysics Oceanography 13. Climate action Space and Planetary Science Interglacial Antarctica Geology |
Zdroj: | Earth and Planetary Science Letters Earth and Planetary Science Letters, Elsevier, 2008, 272 (3-4), pp.579 à 590. ⟨10.1016/j.epsl.2008.05.021⟩ |
ISSN: | 0012-821X |
Popis: | International audience; Cu, Zn, As, Cd, Pb and Bi were determined by Inductively Coupled Plasma Sector Field Mass Spectrometry (ICP-SFMS) in seventy-seven sections of the 3270 m deep ice core drilled at Dome C at an altitude of 3233 m on the East Antarctic plateau as part of the European Program for Ice Coring in Antarctica (EPICA). The depth of the section ranged from 2368.85 m (263.6 kyr BP) to 3062.13 m (672.0 kyr BP). When combined with data previously obtained for the upper part of the core, it gives a detailed record of past natural variations in the concentrations of these heavy metals during the last eight climatic cycles from the Holocene back to Marine Isotopic Stage (MIS) 16.2. Concentrations of all metals are found to have strongly varied. For Cu, Pb, Bi and possibly Zn concentrations appear to be closely linked with climate conditions, with high values during glacial maxima and much lower values during interglacials. The situation is less clear for As and Cd, for which variations are less clearly linked with climate conditions. Rock and soil dust appears to be the main source of Cu, Zn, Bi and Pb during glacial maxima, and a significant source for these metals during interglacials, while As, Cd and Bi present a more complex inputs from several sources, with a particularly significant impact of volcanism. |
Databáze: | OpenAIRE |
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