The structural glaciology of Kongsvegen, Svalbard, and its role in landform genesis
Abstract Mapping of the structural glaciology of Kongsvegen, Svalbard, reveals evidence for four main deformational structures. These are stratification, longitudinal foliation, thrusts and crevasse traces. These structures are considered in terms of their contribution to debris entrainment, transpo...
Published in: | Journal of Glaciology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
1998
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0022143000002422 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000002422 |
id |
crcambridgeupr:10.1017/s0022143000002422 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0022143000002422 2024-06-23T07:53:05+00:00 The structural glaciology of Kongsvegen, Svalbard, and its role in landform genesis Glasser, Neil F. Hambrey, Michael J. Crawford, Kevin R. Bennett, Matthew R. Huddart, David 1998 http://dx.doi.org/10.1017/s0022143000002422 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000002422 en eng Cambridge University Press (CUP) Journal of Glaciology volume 44, issue 146, page 136-148 ISSN 0022-1430 1727-5652 journal-article 1998 crcambridgeupr https://doi.org/10.1017/s0022143000002422 2024-06-05T04:02:50Z Abstract Mapping of the structural glaciology of Kongsvegen, Svalbard, reveals evidence for four main deformational structures. These are stratification, longitudinal foliation, thrusts and crevasse traces. These structures are considered in terms of their contribution to debris entrainment, transport and subsequent landform development. Stratification is associated with small amounts of supraglacial debris that has been folded with flow-parallel axes; longitudinal foliation in places incorporates basal glacial sediments along folds with flow-parallel axes; and thrusts transport basal debris to the glacier surface. Crevasse traces are not significant in terms of debris entrainment. The entrainment of basal debris along longitudinal foliation is not a universally recognised process. At Kongsvegen this process is attributed to the development of a transposition foliation, in combination with incorporation of debris-rich basal ice or soft basal sediment in the fold complex. Mapping of the landforms in the proglacial area shows that debris incorporated along longitudinal foliation is released as “foliation-parallel ridges” and that transverse ridges mark debris-bearing thrusts. The role of longitudinal foliation in landform development has never been documented in this manner. Although the preservation potential of such ridges may be limited, recognition of foliation-parallel ridges in the Pleistocene landform record has important implications for the interpretation of the dynamics of former ire masses. Article in Journal/Newspaper glacier Journal of Glaciology Svalbard Cambridge University Press Svalbard Kongsvegen ENVELOPE(12.657,12.657,78.854,78.854) Journal of Glaciology 44 146 136 148 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract Mapping of the structural glaciology of Kongsvegen, Svalbard, reveals evidence for four main deformational structures. These are stratification, longitudinal foliation, thrusts and crevasse traces. These structures are considered in terms of their contribution to debris entrainment, transport and subsequent landform development. Stratification is associated with small amounts of supraglacial debris that has been folded with flow-parallel axes; longitudinal foliation in places incorporates basal glacial sediments along folds with flow-parallel axes; and thrusts transport basal debris to the glacier surface. Crevasse traces are not significant in terms of debris entrainment. The entrainment of basal debris along longitudinal foliation is not a universally recognised process. At Kongsvegen this process is attributed to the development of a transposition foliation, in combination with incorporation of debris-rich basal ice or soft basal sediment in the fold complex. Mapping of the landforms in the proglacial area shows that debris incorporated along longitudinal foliation is released as “foliation-parallel ridges” and that transverse ridges mark debris-bearing thrusts. The role of longitudinal foliation in landform development has never been documented in this manner. Although the preservation potential of such ridges may be limited, recognition of foliation-parallel ridges in the Pleistocene landform record has important implications for the interpretation of the dynamics of former ire masses. |
format |
Article in Journal/Newspaper |
author |
Glasser, Neil F. Hambrey, Michael J. Crawford, Kevin R. Bennett, Matthew R. Huddart, David |
spellingShingle |
Glasser, Neil F. Hambrey, Michael J. Crawford, Kevin R. Bennett, Matthew R. Huddart, David The structural glaciology of Kongsvegen, Svalbard, and its role in landform genesis |
author_facet |
Glasser, Neil F. Hambrey, Michael J. Crawford, Kevin R. Bennett, Matthew R. Huddart, David |
author_sort |
Glasser, Neil F. |
title |
The structural glaciology of Kongsvegen, Svalbard, and its role in landform genesis |
title_short |
The structural glaciology of Kongsvegen, Svalbard, and its role in landform genesis |
title_full |
The structural glaciology of Kongsvegen, Svalbard, and its role in landform genesis |
title_fullStr |
The structural glaciology of Kongsvegen, Svalbard, and its role in landform genesis |
title_full_unstemmed |
The structural glaciology of Kongsvegen, Svalbard, and its role in landform genesis |
title_sort |
structural glaciology of kongsvegen, svalbard, and its role in landform genesis |
publisher |
Cambridge University Press (CUP) |
publishDate |
1998 |
url |
http://dx.doi.org/10.1017/s0022143000002422 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000002422 |
long_lat |
ENVELOPE(12.657,12.657,78.854,78.854) |
geographic |
Svalbard Kongsvegen |
geographic_facet |
Svalbard Kongsvegen |
genre |
glacier Journal of Glaciology Svalbard |
genre_facet |
glacier Journal of Glaciology Svalbard |
op_source |
Journal of Glaciology volume 44, issue 146, page 136-148 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000002422 |
container_title |
Journal of Glaciology |
container_volume |
44 |
container_issue |
146 |
container_start_page |
136 |
op_container_end_page |
148 |
_version_ |
1802644563778600960 |