Molar gas ratios of air entrapped in ice: A new tool to determine the origin of relict massive ground ice bodies in permafrost
Abstract The molar ratios of atmospheric gases change during dissolution in water due to differences in their relative solubilities. We exploited this characteristic to develop a tool to clarify the origin of ice formations in permafrost regions. Extracted from ice, molar gas ratios can distinguish...
Published in: | Quaternary Research |
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Language: | English |
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Cambridge University Press (CUP)
2007
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Online Access: | http://dx.doi.org/10.1016/j.yqres.2007.05.003 http://api.elsevier.com/content/article/PII:S0033589407000695?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589407000695?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400014174 |
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crcambridgeupr:10.1016/j.yqres.2007.05.003 2024-09-15T18:11:24+00:00 Molar gas ratios of air entrapped in ice: A new tool to determine the origin of relict massive ground ice bodies in permafrost Cardyn, Raphaelle Clark, Ian D. Lacelle, Denis Lauriol, Bernard Zdanowicz, Christian Calmels, Fabrice 2007 http://dx.doi.org/10.1016/j.yqres.2007.05.003 http://api.elsevier.com/content/article/PII:S0033589407000695?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589407000695?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400014174 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 68, issue 2, page 239-248 ISSN 0033-5894 1096-0287 journal-article 2007 crcambridgeupr https://doi.org/10.1016/j.yqres.2007.05.003 2024-07-24T04:03:56Z Abstract The molar ratios of atmospheric gases change during dissolution in water due to differences in their relative solubilities. We exploited this characteristic to develop a tool to clarify the origin of ice formations in permafrost regions. Extracted from ice, molar gas ratios can distinguish buried glacier ice from intrasedimental ground ice formed by freezing groundwaters. An extraction line was built to isolate gases from ice by melting and trapping with liquid He, followed by analysis of N 2 , O 2, , Ar, 18 O O2 and 15 N N2 , by continuous flow mass spectrometry. The method was tested using glacier ice, aufeis ice (river icing) and intrasedimental ground ice from sites in the Canadian Arctic. O 2 /Ar and N 2 /Ar ratios clearly distinguish between atmospheric gas in glacial ice and gases from intrasedimental ground ice, which are exsolved from freezing water. δ 15 N N2 and δ 18 O O2 in glacier ice, aufeis ice and intrasedimental ground ice do not show clear distinguishing trends as they are affected by various physical processes during formation such as gravitational settling, excess air addition, mixing with snow pack, and respiration. Article in Journal/Newspaper Ice permafrost Cambridge University Press Quaternary Research 68 2 239 248 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract The molar ratios of atmospheric gases change during dissolution in water due to differences in their relative solubilities. We exploited this characteristic to develop a tool to clarify the origin of ice formations in permafrost regions. Extracted from ice, molar gas ratios can distinguish buried glacier ice from intrasedimental ground ice formed by freezing groundwaters. An extraction line was built to isolate gases from ice by melting and trapping with liquid He, followed by analysis of N 2 , O 2, , Ar, 18 O O2 and 15 N N2 , by continuous flow mass spectrometry. The method was tested using glacier ice, aufeis ice (river icing) and intrasedimental ground ice from sites in the Canadian Arctic. O 2 /Ar and N 2 /Ar ratios clearly distinguish between atmospheric gas in glacial ice and gases from intrasedimental ground ice, which are exsolved from freezing water. δ 15 N N2 and δ 18 O O2 in glacier ice, aufeis ice and intrasedimental ground ice do not show clear distinguishing trends as they are affected by various physical processes during formation such as gravitational settling, excess air addition, mixing with snow pack, and respiration. |
format |
Article in Journal/Newspaper |
author |
Cardyn, Raphaelle Clark, Ian D. Lacelle, Denis Lauriol, Bernard Zdanowicz, Christian Calmels, Fabrice |
spellingShingle |
Cardyn, Raphaelle Clark, Ian D. Lacelle, Denis Lauriol, Bernard Zdanowicz, Christian Calmels, Fabrice Molar gas ratios of air entrapped in ice: A new tool to determine the origin of relict massive ground ice bodies in permafrost |
author_facet |
Cardyn, Raphaelle Clark, Ian D. Lacelle, Denis Lauriol, Bernard Zdanowicz, Christian Calmels, Fabrice |
author_sort |
Cardyn, Raphaelle |
title |
Molar gas ratios of air entrapped in ice: A new tool to determine the origin of relict massive ground ice bodies in permafrost |
title_short |
Molar gas ratios of air entrapped in ice: A new tool to determine the origin of relict massive ground ice bodies in permafrost |
title_full |
Molar gas ratios of air entrapped in ice: A new tool to determine the origin of relict massive ground ice bodies in permafrost |
title_fullStr |
Molar gas ratios of air entrapped in ice: A new tool to determine the origin of relict massive ground ice bodies in permafrost |
title_full_unstemmed |
Molar gas ratios of air entrapped in ice: A new tool to determine the origin of relict massive ground ice bodies in permafrost |
title_sort |
molar gas ratios of air entrapped in ice: a new tool to determine the origin of relict massive ground ice bodies in permafrost |
publisher |
Cambridge University Press (CUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1016/j.yqres.2007.05.003 http://api.elsevier.com/content/article/PII:S0033589407000695?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589407000695?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400014174 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Quaternary Research volume 68, issue 2, page 239-248 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/j.yqres.2007.05.003 |
container_title |
Quaternary Research |
container_volume |
68 |
container_issue |
2 |
container_start_page |
239 |
op_container_end_page |
248 |
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1810448991129698304 |