δD-δ18O relationships on a polythermal valley glacier: Midtre Lovénbreen, Svalbard
This paper outlines the results of stable isotope (δD-δ18O) analysis of snow and glacier ice undertaken as part of a larger study concerning structural glaciology, debris entrainment and debris transport patterns at Midtre Lovénbreen, Svalbard. Samples of fresh snow were collected from the glacier s...
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Norwegian Polar Institute
2002
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ftjpolarres:oai:journals.openacademia.net:article/2134 2023-05-15T16:22:09+02:00 δD-δ18O relationships on a polythermal valley glacier: Midtre Lovénbreen, Svalbard Glasser, Neil F. Hambrey, Michael J. 2002-01-06 application/pdf https://polarresearch.net/index.php/polar/article/view/2134 https://doi.org/10.3402/polar.v21i1.6478 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2134/5385 https://polarresearch.net/index.php/polar/article/view/2134 doi:10.3402/polar.v21i1.6478 Copyright (c) 2018 Polar Research Polar Research; Vol. 21 No. 1 (2002); 123-131 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2002 ftjpolarres https://doi.org/10.3402/polar.v21i1.6478 2021-11-11T19:12:09Z This paper outlines the results of stable isotope (δD-δ18O) analysis of snow and glacier ice undertaken as part of a larger study concerning structural glaciology, debris entrainment and debris transport patterns at Midtre Lovénbreen, Svalbard. Samples of fresh snow were collected from the glacier surface in spring 1999 and samples of surface glacier ice and basal ice samples were collected in summer 1999. When plotted on bivariate co-isotopic diagrams (δD-δ18O), the slopes obtained for snow and unmodified glacier ice (6.4 and 6.9, respectively) are less steep than those for the basal ice layer and transverse ice layers on the ice surface (7.6 and 7.7, respectively). The difference in the slope of these lines is not statistically significant at the sample size (50) used in this study. The results indicate that although stable isotope analysis clearly has potential for studies of debris entrainment, transport and structural glaciology, difficulties remain with applying this technique. It is therefore not possible to apply these isotopic techniques to ice facies of unknown origins. In particular, large sample numbers are required to establish statistical differences and high-resolution sampling of specific ice facies may be necessary to establish isotopic differences. Article in Journal/Newspaper glacier Polar Research Svalbard Polar Research (E-Journal) Svalbard Polar Research 21 1 123 131 |
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Open Polar |
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Polar Research (E-Journal) |
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ftjpolarres |
language |
English |
description |
This paper outlines the results of stable isotope (δD-δ18O) analysis of snow and glacier ice undertaken as part of a larger study concerning structural glaciology, debris entrainment and debris transport patterns at Midtre Lovénbreen, Svalbard. Samples of fresh snow were collected from the glacier surface in spring 1999 and samples of surface glacier ice and basal ice samples were collected in summer 1999. When plotted on bivariate co-isotopic diagrams (δD-δ18O), the slopes obtained for snow and unmodified glacier ice (6.4 and 6.9, respectively) are less steep than those for the basal ice layer and transverse ice layers on the ice surface (7.6 and 7.7, respectively). The difference in the slope of these lines is not statistically significant at the sample size (50) used in this study. The results indicate that although stable isotope analysis clearly has potential for studies of debris entrainment, transport and structural glaciology, difficulties remain with applying this technique. It is therefore not possible to apply these isotopic techniques to ice facies of unknown origins. In particular, large sample numbers are required to establish statistical differences and high-resolution sampling of specific ice facies may be necessary to establish isotopic differences. |
format |
Article in Journal/Newspaper |
author |
Glasser, Neil F. Hambrey, Michael J. |
spellingShingle |
Glasser, Neil F. Hambrey, Michael J. δD-δ18O relationships on a polythermal valley glacier: Midtre Lovénbreen, Svalbard |
author_facet |
Glasser, Neil F. Hambrey, Michael J. |
author_sort |
Glasser, Neil F. |
title |
δD-δ18O relationships on a polythermal valley glacier: Midtre Lovénbreen, Svalbard |
title_short |
δD-δ18O relationships on a polythermal valley glacier: Midtre Lovénbreen, Svalbard |
title_full |
δD-δ18O relationships on a polythermal valley glacier: Midtre Lovénbreen, Svalbard |
title_fullStr |
δD-δ18O relationships on a polythermal valley glacier: Midtre Lovénbreen, Svalbard |
title_full_unstemmed |
δD-δ18O relationships on a polythermal valley glacier: Midtre Lovénbreen, Svalbard |
title_sort |
δd-δ18o relationships on a polythermal valley glacier: midtre lovénbreen, svalbard |
publisher |
Norwegian Polar Institute |
publishDate |
2002 |
url |
https://polarresearch.net/index.php/polar/article/view/2134 https://doi.org/10.3402/polar.v21i1.6478 |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
glacier Polar Research Svalbard |
genre_facet |
glacier Polar Research Svalbard |
op_source |
Polar Research; Vol. 21 No. 1 (2002); 123-131 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2134/5385 https://polarresearch.net/index.php/polar/article/view/2134 doi:10.3402/polar.v21i1.6478 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v21i1.6478 |
container_title |
Polar Research |
container_volume |
21 |
container_issue |
1 |
container_start_page |
123 |
op_container_end_page |
131 |
_version_ |
1766010119677542400 |