Molar gas ratios and stable oxygen and nitrogen isotopes of air entrapped in ice, North America
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 gl...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.808160 2023-05-15T15:07:11+02:00 Molar gas ratios and stable oxygen and nitrogen isotopes of air entrapped in ice, North America Cardyn, Raphaelle Clark, Ian D Lacelle, Denis Lauriol, Bernard Zdanowicz, Christian Calmels, Fabrice MEDIAN LATITUDE: 69.071278 * MEDIAN LONGITUDE: -91.803056 * SOUTH-BOUND LATITUDE: 56.550000 * WEST-BOUND LONGITUDE: -140.900000 * NORTH-BOUND LATITUDE: 80.666670 * EAST-BOUND LONGITUDE: -72.650000 2007-02-27 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.808160 https://doi.org/10.1594/PANGAEA.808160 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.808160 https://doi.org/10.1594/PANGAEA.808160 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Cardyn, Raphaelle; Clark, Ian D; Lacelle, Denis; Lauriol, Bernard; Zdanowicz, Christian; Calmels, Fabrice (2007): Molar gas ratios of air entrapped in ice: A new tool to determine the origin of relict massive ground ice bodies in permafrost. Quaternary Research, 68(2), 239-248, https://doi.org/10.1016/j.yqres.2007.05.003 International Polar Year (2007-2008) IPY Dataset 2007 ftpangaea https://doi.org/10.1594/PANGAEA.808160 https://doi.org/10.1016/j.yqres.2007.05.003 2023-01-20T07:32:55Z 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 N2, O2, Ar, 18O-O2 and 15N-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. O2/Ar and N2/Ar ratios clearly distinguish between atmospheric gas in glacial ice and gases from intrasedimental ground ice, which are exsolved from freezing water. 615NN2 and 618OO2 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. Dataset Arctic Ice International Polar Year IPY permafrost PANGAEA - Data Publisher for Earth & Environmental Science Arctic ENVELOPE(-140.900000,-72.650000,80.666670,56.550000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
International Polar Year (2007-2008) IPY |
spellingShingle |
International Polar Year (2007-2008) IPY Cardyn, Raphaelle Clark, Ian D Lacelle, Denis Lauriol, Bernard Zdanowicz, Christian Calmels, Fabrice Molar gas ratios and stable oxygen and nitrogen isotopes of air entrapped in ice, North America |
topic_facet |
International Polar Year (2007-2008) IPY |
description |
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 N2, O2, Ar, 18O-O2 and 15N-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. O2/Ar and N2/Ar ratios clearly distinguish between atmospheric gas in glacial ice and gases from intrasedimental ground ice, which are exsolved from freezing water. 615NN2 and 618OO2 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 |
Dataset |
author |
Cardyn, Raphaelle Clark, Ian D Lacelle, Denis Lauriol, Bernard Zdanowicz, Christian Calmels, Fabrice |
author_facet |
Cardyn, Raphaelle Clark, Ian D Lacelle, Denis Lauriol, Bernard Zdanowicz, Christian Calmels, Fabrice |
author_sort |
Cardyn, Raphaelle |
title |
Molar gas ratios and stable oxygen and nitrogen isotopes of air entrapped in ice, North America |
title_short |
Molar gas ratios and stable oxygen and nitrogen isotopes of air entrapped in ice, North America |
title_full |
Molar gas ratios and stable oxygen and nitrogen isotopes of air entrapped in ice, North America |
title_fullStr |
Molar gas ratios and stable oxygen and nitrogen isotopes of air entrapped in ice, North America |
title_full_unstemmed |
Molar gas ratios and stable oxygen and nitrogen isotopes of air entrapped in ice, North America |
title_sort |
molar gas ratios and stable oxygen and nitrogen isotopes of air entrapped in ice, north america |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.808160 https://doi.org/10.1594/PANGAEA.808160 |
op_coverage |
MEDIAN LATITUDE: 69.071278 * MEDIAN LONGITUDE: -91.803056 * SOUTH-BOUND LATITUDE: 56.550000 * WEST-BOUND LONGITUDE: -140.900000 * NORTH-BOUND LATITUDE: 80.666670 * EAST-BOUND LONGITUDE: -72.650000 |
long_lat |
ENVELOPE(-140.900000,-72.650000,80.666670,56.550000) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice International Polar Year IPY permafrost |
genre_facet |
Arctic Ice International Polar Year IPY permafrost |
op_source |
Supplement to: Cardyn, Raphaelle; Clark, Ian D; Lacelle, Denis; Lauriol, Bernard; Zdanowicz, Christian; Calmels, Fabrice (2007): Molar gas ratios of air entrapped in ice: A new tool to determine the origin of relict massive ground ice bodies in permafrost. Quaternary Research, 68(2), 239-248, https://doi.org/10.1016/j.yqres.2007.05.003 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.808160 https://doi.org/10.1594/PANGAEA.808160 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.808160 https://doi.org/10.1016/j.yqres.2007.05.003 |
_version_ |
1766338743824809984 |