Chemical and isotopic characteristics of a glacier-derived naled in front of Austre Grønfjordbreen, Svalbard
The chemical and stable isotope composition of a glacier-derived naled in front of the glacier Austre Grønfjordbreen, Svalbard, is examined to elucidate how secondary processes such as preferential retention and leaching affect naled chemistry. Internal candle ice layers have a chemical composition...
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Language: | English |
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Norwegian Polar Institute
2012
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Online Access: | https://doi.org/10.3402/polar.v31i0.17628 https://doaj.org/article/f293ed174039464c98e429c330f69ec8 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:f293ed174039464c98e429c330f69ec8 2023-05-15T16:22:06+02:00 Chemical and isotopic characteristics of a glacier-derived naled in front of Austre Grønfjordbreen, Svalbard Jacob C. Yde Andy J. Hodson Irina Solovjanova Jørgen P. Steffensen Per Nørnberg Jan Heinemeier Jesper Olsen 2012-03-01 https://doi.org/10.3402/polar.v31i0.17628 https://doaj.org/article/f293ed174039464c98e429c330f69ec8 en eng Norwegian Polar Institute doi:10.3402/polar.v31i0.17628 0800-0395 1751-8369 https://doaj.org/article/f293ed174039464c98e429c330f69ec8 undefined Polar Research, Vol 31, Iss 0, Pp 1-15 (2012) Naled naled chemistry naled isotope composition surge-type glaciers Svalbard geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.3402/polar.v31i0.17628 2023-01-22T17:58:17Z The chemical and stable isotope composition of a glacier-derived naled in front of the glacier Austre Grønfjordbreen, Svalbard, is examined to elucidate how secondary processes such as preferential retention and leaching affect naled chemistry. Internal candle ice layers have a chemical composition almost similar to that of the lower stratified granular ice layer, whereas the upper granular ice layer has a significantly different composition, which resembles the composition found in glacier meltwater. Grey, platy cryogenic calcite precipitates are found in clusters on the surface of the naled assemblage, indicating preferential retention of Ca2 + and HCO3 −. This process is particular pronounced in the distal part of the naled. The isotopic composition in the naled is in accordance with the local meteoric water line and without indications of kinetic fractionation during freezing. The ability to form ice-marginal naled indicates that Austre Grønfjordbreen has the high meltwater storage potential required for triggering a glacier surge event. Article in Journal/Newspaper glacier Polar Research Svalbard Unknown Austre Grønfjordbreen ENVELOPE(14.339,14.339,77.918,77.918) Svalbard Polar Research 31 1 17628 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Naled naled chemistry naled isotope composition surge-type glaciers Svalbard geo envir |
spellingShingle |
Naled naled chemistry naled isotope composition surge-type glaciers Svalbard geo envir Jacob C. Yde Andy J. Hodson Irina Solovjanova Jørgen P. Steffensen Per Nørnberg Jan Heinemeier Jesper Olsen Chemical and isotopic characteristics of a glacier-derived naled in front of Austre Grønfjordbreen, Svalbard |
topic_facet |
Naled naled chemistry naled isotope composition surge-type glaciers Svalbard geo envir |
description |
The chemical and stable isotope composition of a glacier-derived naled in front of the glacier Austre Grønfjordbreen, Svalbard, is examined to elucidate how secondary processes such as preferential retention and leaching affect naled chemistry. Internal candle ice layers have a chemical composition almost similar to that of the lower stratified granular ice layer, whereas the upper granular ice layer has a significantly different composition, which resembles the composition found in glacier meltwater. Grey, platy cryogenic calcite precipitates are found in clusters on the surface of the naled assemblage, indicating preferential retention of Ca2 + and HCO3 −. This process is particular pronounced in the distal part of the naled. The isotopic composition in the naled is in accordance with the local meteoric water line and without indications of kinetic fractionation during freezing. The ability to form ice-marginal naled indicates that Austre Grønfjordbreen has the high meltwater storage potential required for triggering a glacier surge event. |
format |
Article in Journal/Newspaper |
author |
Jacob C. Yde Andy J. Hodson Irina Solovjanova Jørgen P. Steffensen Per Nørnberg Jan Heinemeier Jesper Olsen |
author_facet |
Jacob C. Yde Andy J. Hodson Irina Solovjanova Jørgen P. Steffensen Per Nørnberg Jan Heinemeier Jesper Olsen |
author_sort |
Jacob C. Yde |
title |
Chemical and isotopic characteristics of a glacier-derived naled in front of Austre Grønfjordbreen, Svalbard |
title_short |
Chemical and isotopic characteristics of a glacier-derived naled in front of Austre Grønfjordbreen, Svalbard |
title_full |
Chemical and isotopic characteristics of a glacier-derived naled in front of Austre Grønfjordbreen, Svalbard |
title_fullStr |
Chemical and isotopic characteristics of a glacier-derived naled in front of Austre Grønfjordbreen, Svalbard |
title_full_unstemmed |
Chemical and isotopic characteristics of a glacier-derived naled in front of Austre Grønfjordbreen, Svalbard |
title_sort |
chemical and isotopic characteristics of a glacier-derived naled in front of austre grønfjordbreen, svalbard |
publisher |
Norwegian Polar Institute |
publishDate |
2012 |
url |
https://doi.org/10.3402/polar.v31i0.17628 https://doaj.org/article/f293ed174039464c98e429c330f69ec8 |
long_lat |
ENVELOPE(14.339,14.339,77.918,77.918) |
geographic |
Austre Grønfjordbreen Svalbard |
geographic_facet |
Austre Grønfjordbreen Svalbard |
genre |
glacier Polar Research Svalbard |
genre_facet |
glacier Polar Research Svalbard |
op_source |
Polar Research, Vol 31, Iss 0, Pp 1-15 (2012) |
op_relation |
doi:10.3402/polar.v31i0.17628 0800-0395 1751-8369 https://doaj.org/article/f293ed174039464c98e429c330f69ec8 |
op_rights |
undefined |
op_doi |
https://doi.org/10.3402/polar.v31i0.17628 |
container_title |
Polar Research |
container_volume |
31 |
container_issue |
1 |
container_start_page |
17628 |
_version_ |
1766010070999498752 |