Autochthonous block fields in southern Norway: Implications for the geometry, thickness, and isostatic loading of the Late Weichselian Scandinavian ice sheet
Abstract The consistent geographical and altitudinal distribution of autochthonous block fields (mantle of bedrock weathered in situ ) and trimlines in southern Norway suggests a multi‐domed and asymmetric Late Weichselian ice sheet. Low‐gradient ice‐sheet profiles in the southern Baltic region, in...
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crwiley:10.1002/jqs.3390050305 2024-06-02T08:06:28+00:00 Autochthonous block fields in southern Norway: Implications for the geometry, thickness, and isostatic loading of the Late Weichselian Scandinavian ice sheet Nesje, Atle Dahl, Svein Olaf 1990 http://dx.doi.org/10.1002/jqs.3390050305 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.3390050305 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3390050305 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 5, issue 3, page 225-234 ISSN 0267-8179 1099-1417 journal-article 1990 crwiley https://doi.org/10.1002/jqs.3390050305 2024-05-03T11:51:40Z Abstract The consistent geographical and altitudinal distribution of autochthonous block fields (mantle of bedrock weathered in situ ) and trimlines in southern Norway suggests a multi‐domed and asymmetric Late Weichselian ice sheet. Low‐gradient ice‐sheet profiles in the southern Baltic region, in the North Sea, and along the outer fjord areas of southern Norway, are best explained by movement of ice on a bed of deforming sediment, although water lubricated sliding or a combination of the two, may not be excluded. The ice‐thickness distribution of the Late Weichselian Scandinavian ice sheet is not in correspondence with the modern uplift pattern of Fennoscandia. Early Holocene crustal rebound was apparently determined by an exponential, glacio‐isostatic rise. Later, however, crustal movements appear to have been dominated by large‐scale tectonic uplift of the Fennoscandian Shield, centred on the Gulf of Bothnia, the region of maximum lithosphere thickness. Article in Journal/Newspaper Fennoscandia Fennoscandian Ice Sheet Wiley Online Library Norway Journal of Quaternary Science 5 3 225 234 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The consistent geographical and altitudinal distribution of autochthonous block fields (mantle of bedrock weathered in situ ) and trimlines in southern Norway suggests a multi‐domed and asymmetric Late Weichselian ice sheet. Low‐gradient ice‐sheet profiles in the southern Baltic region, in the North Sea, and along the outer fjord areas of southern Norway, are best explained by movement of ice on a bed of deforming sediment, although water lubricated sliding or a combination of the two, may not be excluded. The ice‐thickness distribution of the Late Weichselian Scandinavian ice sheet is not in correspondence with the modern uplift pattern of Fennoscandia. Early Holocene crustal rebound was apparently determined by an exponential, glacio‐isostatic rise. Later, however, crustal movements appear to have been dominated by large‐scale tectonic uplift of the Fennoscandian Shield, centred on the Gulf of Bothnia, the region of maximum lithosphere thickness. |
format |
Article in Journal/Newspaper |
author |
Nesje, Atle Dahl, Svein Olaf |
spellingShingle |
Nesje, Atle Dahl, Svein Olaf Autochthonous block fields in southern Norway: Implications for the geometry, thickness, and isostatic loading of the Late Weichselian Scandinavian ice sheet |
author_facet |
Nesje, Atle Dahl, Svein Olaf |
author_sort |
Nesje, Atle |
title |
Autochthonous block fields in southern Norway: Implications for the geometry, thickness, and isostatic loading of the Late Weichselian Scandinavian ice sheet |
title_short |
Autochthonous block fields in southern Norway: Implications for the geometry, thickness, and isostatic loading of the Late Weichselian Scandinavian ice sheet |
title_full |
Autochthonous block fields in southern Norway: Implications for the geometry, thickness, and isostatic loading of the Late Weichselian Scandinavian ice sheet |
title_fullStr |
Autochthonous block fields in southern Norway: Implications for the geometry, thickness, and isostatic loading of the Late Weichselian Scandinavian ice sheet |
title_full_unstemmed |
Autochthonous block fields in southern Norway: Implications for the geometry, thickness, and isostatic loading of the Late Weichselian Scandinavian ice sheet |
title_sort |
autochthonous block fields in southern norway: implications for the geometry, thickness, and isostatic loading of the late weichselian scandinavian ice sheet |
publisher |
Wiley |
publishDate |
1990 |
url |
http://dx.doi.org/10.1002/jqs.3390050305 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.3390050305 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3390050305 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Fennoscandia Fennoscandian Ice Sheet |
genre_facet |
Fennoscandia Fennoscandian Ice Sheet |
op_source |
Journal of Quaternary Science volume 5, issue 3, page 225-234 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.3390050305 |
container_title |
Journal of Quaternary Science |
container_volume |
5 |
container_issue |
3 |
container_start_page |
225 |
op_container_end_page |
234 |
_version_ |
1800751421505667072 |