Isotopic signatures of sulfur in shallow Antarctic ice cores
International audience Sulfur stable isotopes from Antarctic snow samples have been used to assess sources of sulfate. The novel experimental procedure presented here is suitable for the determination of sulfur isotopic composition at the micromolar level and has been adapted to polar ice samples. M...
Published in: | Journal of Geophysical Research: Atmospheres |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2000
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Online Access: | https://hal.science/hal-03110214 https://hal.science/hal-03110214/document https://hal.science/hal-03110214/file/1999JD900974.pdf https://doi.org/10.1029/1999JD900974 |
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Université Savoie Mont Blanc: HAL |
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English |
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Patris, Nicolas Delmas, Robert Jouzel, Jean Isotopic signatures of sulfur in shallow Antarctic ice cores |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Sulfur stable isotopes from Antarctic snow samples have been used to assess sources of sulfate. The novel experimental procedure presented here is suitable for the determination of sulfur isotopic composition at the micromolar level and has been adapted to polar ice samples. Measurements were carried out on three contiguous firn cores (PS6, PS7, and PS8) collected near Amundsen‐Scott Station (South Pole), covering the record of the Agung eruption (March 1963). Taking into account the minimum amount of sulfate required for the isotope analysis, it has been possible to delineate three time periods along the cores: pre‐1964 years (background sulfate level), 1964–1965 (volcanic deposition peak), and 1966–1968 (volcanic peak tail). A deeper part of another core (PS12) has been used to extend the background picture. Assuming the conservation of isotopic signatures during long‐range transport and deposition processes, results demonstrate the significant volcanic contribution to sulfate deposition on the central Antarctic ice cap a few months after a major low‐latitude eruption. They also confirm the marine biogenic origin of present background sulfate. Isotopic signatures (δ34S) of marine biogenic sulfate and volcanic sulfate from Mt. Agung have been found to be +18.6±0.9‰ and +2.7± .1‰, respectively. |
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) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) |
format |
Article in Journal/Newspaper |
author |
Patris, Nicolas Delmas, Robert Jouzel, Jean |
author_facet |
Patris, Nicolas Delmas, Robert Jouzel, Jean |
author_sort |
Patris, Nicolas |
title |
Isotopic signatures of sulfur in shallow Antarctic ice cores |
title_short |
Isotopic signatures of sulfur in shallow Antarctic ice cores |
title_full |
Isotopic signatures of sulfur in shallow Antarctic ice cores |
title_fullStr |
Isotopic signatures of sulfur in shallow Antarctic ice cores |
title_full_unstemmed |
Isotopic signatures of sulfur in shallow Antarctic ice cores |
title_sort |
isotopic signatures of sulfur in shallow antarctic ice cores |
publisher |
HAL CCSD |
publishDate |
2000 |
url |
https://hal.science/hal-03110214 https://hal.science/hal-03110214/document https://hal.science/hal-03110214/file/1999JD900974.pdf https://doi.org/10.1029/1999JD900974 |
genre |
Amundsen-Scott Antarc* Antarctic Ice cap South pole South pole |
genre_facet |
Amundsen-Scott Antarc* Antarctic Ice cap South pole South pole |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.science/hal-03110214 Journal of Geophysical Research: Atmospheres, 2000, 105 (D6), pp.7071-7078. ⟨10.1029/1999JD900974⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/1999JD900974 hal-03110214 https://hal.science/hal-03110214 https://hal.science/hal-03110214/document https://hal.science/hal-03110214/file/1999JD900974.pdf doi:10.1029/1999JD900974 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/1999JD900974 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
105 |
container_issue |
D6 |
container_start_page |
7071 |
op_container_end_page |
7078 |
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1797576928777994240 |
spelling |
ftunivsavoie:oai:HAL:hal-03110214v1 2024-04-28T07:54:47+00:00 Isotopic signatures of sulfur in shallow Antarctic ice cores Patris, Nicolas Delmas, Robert Jouzel, Jean 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) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) 2000-03-27 https://hal.science/hal-03110214 https://hal.science/hal-03110214/document https://hal.science/hal-03110214/file/1999JD900974.pdf https://doi.org/10.1029/1999JD900974 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/1999JD900974 hal-03110214 https://hal.science/hal-03110214 https://hal.science/hal-03110214/document https://hal.science/hal-03110214/file/1999JD900974.pdf doi:10.1029/1999JD900974 info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.science/hal-03110214 Journal of Geophysical Research: Atmospheres, 2000, 105 (D6), pp.7071-7078. ⟨10.1029/1999JD900974⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2000 ftunivsavoie https://doi.org/10.1029/1999JD900974 2024-04-11T00:42:33Z International audience Sulfur stable isotopes from Antarctic snow samples have been used to assess sources of sulfate. The novel experimental procedure presented here is suitable for the determination of sulfur isotopic composition at the micromolar level and has been adapted to polar ice samples. Measurements were carried out on three contiguous firn cores (PS6, PS7, and PS8) collected near Amundsen‐Scott Station (South Pole), covering the record of the Agung eruption (March 1963). Taking into account the minimum amount of sulfate required for the isotope analysis, it has been possible to delineate three time periods along the cores: pre‐1964 years (background sulfate level), 1964–1965 (volcanic deposition peak), and 1966–1968 (volcanic peak tail). A deeper part of another core (PS12) has been used to extend the background picture. Assuming the conservation of isotopic signatures during long‐range transport and deposition processes, results demonstrate the significant volcanic contribution to sulfate deposition on the central Antarctic ice cap a few months after a major low‐latitude eruption. They also confirm the marine biogenic origin of present background sulfate. Isotopic signatures (δ34S) of marine biogenic sulfate and volcanic sulfate from Mt. Agung have been found to be +18.6±0.9‰ and +2.7± .1‰, respectively. Article in Journal/Newspaper Amundsen-Scott Antarc* Antarctic Ice cap South pole South pole Université Savoie Mont Blanc: HAL Journal of Geophysical Research: Atmospheres 105 D6 7071 7078 |