Formation and reorientation of structure in the surge‐type glacier Kongsvegen, Svalbard
Abstract Kongsvegen, a surge‐type glacier in Spitsbergen, Svalbard, shares a tide‐water margin with the glacier Kronebreen. The complex has been in retreat since a surge advance of Kongsvegen around 1948. The surface of Kongsvegen displays suites of deformational structures highlighted by debris‐ric...
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crwiley:10.1002/jqs.673 2024-06-02T08:07:07+00:00 Formation and reorientation of structure in the surge‐type glacier Kongsvegen, Svalbard Woodward, John Murray, Tavi McCaig, Andrew 2002 http://dx.doi.org/10.1002/jqs.673 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.673 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.673 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 17, issue 3, page 201-209 ISSN 0267-8179 1099-1417 journal-article 2002 crwiley https://doi.org/10.1002/jqs.673 2024-05-03T12:04:07Z Abstract Kongsvegen, a surge‐type glacier in Spitsbergen, Svalbard, shares a tide‐water margin with the glacier Kronebreen. The complex has been in retreat since a surge advance of Kongsvegen around 1948. The surface of Kongsvegen displays suites of deformational structures highlighted by debris‐rich folia. These structures are melting out to form a network of sediment ridges in the grounded terminal area. The structures are also visible in a marginal, 1 km long, 5–20 m high cliff‐face at the terminus. Current models for the evolution of deformational structures at Kongsvegen divide the structures into suites based on their orientation and dip, before assigning a mechanism for genesis based on structure geometry. Interpretation of aerial photographs and field mapping of surface structures suggest that many structures were reorientated or advected during the surge. We suggest that many of the deformational structures highlighted by debris‐rich folia represent reorientated, sediment‐filled crevasses. Some evidence of thrusting is apparent but the process is not as ubiquitous as previously suggested. Many deformational structures also appear to have been offset by more recent structures. Mechanisms of structural development must, therefore, be considered within the context of distinct stages of glacier flow dynamics and multiple surge episodes. Furthermore, evidence for thrusting and folding within the glacier systems of Svalbard has been used as the basis for interpreting Quaternary glacial landforms in the UK. The findings of this paper, therefore, have implications for interpretations of the Quaternary record. Copyright © 2002 John Wiley & Sons, Ltd. Article in Journal/Newspaper glacier Svalbard Spitsbergen Wiley Online Library High Cliff ENVELOPE(166.450,166.450,-77.617,-77.617) Kongsvegen ENVELOPE(12.657,12.657,78.854,78.854) Kronebreen ENVELOPE(13.333,13.333,78.833,78.833) Svalbard Journal of Quaternary Science 17 3 201 209 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Kongsvegen, a surge‐type glacier in Spitsbergen, Svalbard, shares a tide‐water margin with the glacier Kronebreen. The complex has been in retreat since a surge advance of Kongsvegen around 1948. The surface of Kongsvegen displays suites of deformational structures highlighted by debris‐rich folia. These structures are melting out to form a network of sediment ridges in the grounded terminal area. The structures are also visible in a marginal, 1 km long, 5–20 m high cliff‐face at the terminus. Current models for the evolution of deformational structures at Kongsvegen divide the structures into suites based on their orientation and dip, before assigning a mechanism for genesis based on structure geometry. Interpretation of aerial photographs and field mapping of surface structures suggest that many structures were reorientated or advected during the surge. We suggest that many of the deformational structures highlighted by debris‐rich folia represent reorientated, sediment‐filled crevasses. Some evidence of thrusting is apparent but the process is not as ubiquitous as previously suggested. Many deformational structures also appear to have been offset by more recent structures. Mechanisms of structural development must, therefore, be considered within the context of distinct stages of glacier flow dynamics and multiple surge episodes. Furthermore, evidence for thrusting and folding within the glacier systems of Svalbard has been used as the basis for interpreting Quaternary glacial landforms in the UK. The findings of this paper, therefore, have implications for interpretations of the Quaternary record. Copyright © 2002 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Woodward, John Murray, Tavi McCaig, Andrew |
spellingShingle |
Woodward, John Murray, Tavi McCaig, Andrew Formation and reorientation of structure in the surge‐type glacier Kongsvegen, Svalbard |
author_facet |
Woodward, John Murray, Tavi McCaig, Andrew |
author_sort |
Woodward, John |
title |
Formation and reorientation of structure in the surge‐type glacier Kongsvegen, Svalbard |
title_short |
Formation and reorientation of structure in the surge‐type glacier Kongsvegen, Svalbard |
title_full |
Formation and reorientation of structure in the surge‐type glacier Kongsvegen, Svalbard |
title_fullStr |
Formation and reorientation of structure in the surge‐type glacier Kongsvegen, Svalbard |
title_full_unstemmed |
Formation and reorientation of structure in the surge‐type glacier Kongsvegen, Svalbard |
title_sort |
formation and reorientation of structure in the surge‐type glacier kongsvegen, svalbard |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1002/jqs.673 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.673 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.673 |
long_lat |
ENVELOPE(166.450,166.450,-77.617,-77.617) ENVELOPE(12.657,12.657,78.854,78.854) ENVELOPE(13.333,13.333,78.833,78.833) |
geographic |
High Cliff Kongsvegen Kronebreen Svalbard |
geographic_facet |
High Cliff Kongsvegen Kronebreen Svalbard |
genre |
glacier Svalbard Spitsbergen |
genre_facet |
glacier Svalbard Spitsbergen |
op_source |
Journal of Quaternary Science volume 17, issue 3, page 201-209 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.673 |
container_title |
Journal of Quaternary Science |
container_volume |
17 |
container_issue |
3 |
container_start_page |
201 |
op_container_end_page |
209 |
_version_ |
1800752122895007744 |