D.C. CONDUCTIVITY OF ANTARCTIC ICE IN RELATION TO ITS CHEMISTRY
The D.C. conductivity of natural ice generally shows a strong correlation with the acidity of the meltwater sample. This method was successfully applied by Hammer (1) to detect debris of volcanic eruptions recorded in Greenland ice cores. In this paper we study several conductivity profiles for anta...
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ftccsdartic:oai:HAL:jpa-00226448v1 2023-11-12T04:03:07+01:00 D.C. CONDUCTIVITY OF ANTARCTIC ICE IN RELATION TO ITS CHEMISTRY Legrand, Michel Petit, J.-R. Korotkevich, Y. 1987 https://hal.science/jpa-00226448 https://hal.science/jpa-00226448/document https://hal.science/jpa-00226448/file/ajp-jphyscol198748C183.pdf https://doi.org/10.1051/jphyscol:1987183 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1051/jphyscol:1987183 jpa-00226448 https://hal.science/jpa-00226448 https://hal.science/jpa-00226448/document https://hal.science/jpa-00226448/file/ajp-jphyscol198748C183.pdf doi:10.1051/jphyscol:1987183 info:eu-repo/semantics/OpenAccess Journal de Physique Colloques https://hal.science/jpa-00226448 Journal de Physique Colloques, 1987, 48 (C1), pp.C1-605-C1-611. ⟨10.1051/jphyscol:1987183⟩ [PHYS.HIST]Physics [physics]/Physics archives info:eu-repo/semantics/article Journal articles 1987 ftccsdartic https://doi.org/10.1051/jphyscol:1987183 2023-10-21T23:41:56Z The D.C. conductivity of natural ice generally shows a strong correlation with the acidity of the meltwater sample. This method was successfully applied by Hammer (1) to detect debris of volcanic eruptions recorded in Greenland ice cores. In this paper we study several conductivity profiles for antarctic ice cores (Vostok and South Pole stations) in relation with a comprehensive study of soluble species. Our profiles revealed an important "double spike" on both conductivity and sulfuric acid record for snow deposited during the "Tambora years (1815)'' which is used as a statigraphic marker. Among the three acids (H2SO4, HCl and HNO3) usually present in the ice HCl and HNO3 seem to be more effective than H2SO4 on the conductivity background. In addition it is suggested a negative effect of aluminosilicates. These results suggest that impurities are located at grain boundaries where the pH can reach very low values. This assumption is in agreement with the conductivity model previously proposed by Wolff and Paren (2). Article in Journal/Newspaper Antarc* Antarctic Greenland Greenland ice cores South pole South pole Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Greenland South Pole Paren’ ENVELOPE(163.156,163.156,62.416,62.416) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[PHYS.HIST]Physics [physics]/Physics archives |
spellingShingle |
[PHYS.HIST]Physics [physics]/Physics archives Legrand, Michel Petit, J.-R. Korotkevich, Y. D.C. CONDUCTIVITY OF ANTARCTIC ICE IN RELATION TO ITS CHEMISTRY |
topic_facet |
[PHYS.HIST]Physics [physics]/Physics archives |
description |
The D.C. conductivity of natural ice generally shows a strong correlation with the acidity of the meltwater sample. This method was successfully applied by Hammer (1) to detect debris of volcanic eruptions recorded in Greenland ice cores. In this paper we study several conductivity profiles for antarctic ice cores (Vostok and South Pole stations) in relation with a comprehensive study of soluble species. Our profiles revealed an important "double spike" on both conductivity and sulfuric acid record for snow deposited during the "Tambora years (1815)'' which is used as a statigraphic marker. Among the three acids (H2SO4, HCl and HNO3) usually present in the ice HCl and HNO3 seem to be more effective than H2SO4 on the conductivity background. In addition it is suggested a negative effect of aluminosilicates. These results suggest that impurities are located at grain boundaries where the pH can reach very low values. This assumption is in agreement with the conductivity model previously proposed by Wolff and Paren (2). |
format |
Article in Journal/Newspaper |
author |
Legrand, Michel Petit, J.-R. Korotkevich, Y. |
author_facet |
Legrand, Michel Petit, J.-R. Korotkevich, Y. |
author_sort |
Legrand, Michel |
title |
D.C. CONDUCTIVITY OF ANTARCTIC ICE IN RELATION TO ITS CHEMISTRY |
title_short |
D.C. CONDUCTIVITY OF ANTARCTIC ICE IN RELATION TO ITS CHEMISTRY |
title_full |
D.C. CONDUCTIVITY OF ANTARCTIC ICE IN RELATION TO ITS CHEMISTRY |
title_fullStr |
D.C. CONDUCTIVITY OF ANTARCTIC ICE IN RELATION TO ITS CHEMISTRY |
title_full_unstemmed |
D.C. CONDUCTIVITY OF ANTARCTIC ICE IN RELATION TO ITS CHEMISTRY |
title_sort |
d.c. conductivity of antarctic ice in relation to its chemistry |
publisher |
HAL CCSD |
publishDate |
1987 |
url |
https://hal.science/jpa-00226448 https://hal.science/jpa-00226448/document https://hal.science/jpa-00226448/file/ajp-jphyscol198748C183.pdf https://doi.org/10.1051/jphyscol:1987183 |
long_lat |
ENVELOPE(163.156,163.156,62.416,62.416) |
geographic |
Antarctic Greenland South Pole Paren’ |
geographic_facet |
Antarctic Greenland South Pole Paren’ |
genre |
Antarc* Antarctic Greenland Greenland ice cores South pole South pole |
genre_facet |
Antarc* Antarctic Greenland Greenland ice cores South pole South pole |
op_source |
Journal de Physique Colloques https://hal.science/jpa-00226448 Journal de Physique Colloques, 1987, 48 (C1), pp.C1-605-C1-611. ⟨10.1051/jphyscol:1987183⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1051/jphyscol:1987183 jpa-00226448 https://hal.science/jpa-00226448 https://hal.science/jpa-00226448/document https://hal.science/jpa-00226448/file/ajp-jphyscol198748C183.pdf doi:10.1051/jphyscol:1987183 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1051/jphyscol:1987183 |
_version_ |
1782336192658800640 |