Quaternary denudation of southern Fennoscandia – evidence from the marine realm
Throughout the last 1.1 million years repeated glaciations have modified the southern F ennoscandian landscape and the neighbouring continental shelf into their present form. The glacigenic erosion products derived from the F ennoscandian landmasses were transported to the northern N orth S ea and t...
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crwiley:10.1111/j.1502-3885.2011.00239.x 2024-09-09T19:40:04+00:00 Quaternary denudation of southern Fennoscandia – evidence from the marine realm Hjelstuen, Berit Oline Nygård, Atle Sejrup, Hans Petter Haflidason, Haflidi 2012 http://dx.doi.org/10.1111/j.1502-3885.2011.00239.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.2011.00239.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.2011.00239.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 41, issue 3, page 379-390 ISSN 0300-9483 1502-3885 journal-article 2012 crwiley https://doi.org/10.1111/j.1502-3885.2011.00239.x 2024-07-30T04:21:52Z Throughout the last 1.1 million years repeated glaciations have modified the southern F ennoscandian landscape and the neighbouring continental shelf into their present form. The glacigenic erosion products derived from the F ennoscandian landmasses were transported to the northern N orth S ea and the SE N ordic S eas continental margin. The prominent sub‐marine N orwegian C hannel trough, along the south coast of N orway, was the main transport route for the erosion products between 1.1 and 0.0 Ma . Most of these erosion products were deposited in the N orth S ea F an, which reaches a maximum thickness of 1500 m and has nearly 40 000 km 3 of sediments. About 90% of the N orth S ea F an sediments have been deposited during the last 500 000 years, in a time period when fast‐moving ice streams occupied the N orwegian C hannel during each glacial stage. Back‐stripping the sediment volumes in the northern N orth S ea and SE N ordic S eas sink areas, including the N orth S ea F an, to their assumed F ennoscandian source area gives an average vertical erosion of 164 m for the 1.1–0.0 Ma time period. The average 1.1–0.0 Ma erosion rate in the F ennoscandian source area is estimated to be 0.15 mm a −1 . We suggest, however, that large variations in erosion rates have existed through time and that the most intense F ennoscandian landscape denudation occurred during the time period of repeated shelf edge ice advances, namely from M arine I sotope S tage 12 ( c . 0.5 Ma ) onwards. Article in Journal/Newspaper Fennoscandia Wiley Online Library Boreas 41 3 379 390 |
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English |
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Throughout the last 1.1 million years repeated glaciations have modified the southern F ennoscandian landscape and the neighbouring continental shelf into their present form. The glacigenic erosion products derived from the F ennoscandian landmasses were transported to the northern N orth S ea and the SE N ordic S eas continental margin. The prominent sub‐marine N orwegian C hannel trough, along the south coast of N orway, was the main transport route for the erosion products between 1.1 and 0.0 Ma . Most of these erosion products were deposited in the N orth S ea F an, which reaches a maximum thickness of 1500 m and has nearly 40 000 km 3 of sediments. About 90% of the N orth S ea F an sediments have been deposited during the last 500 000 years, in a time period when fast‐moving ice streams occupied the N orwegian C hannel during each glacial stage. Back‐stripping the sediment volumes in the northern N orth S ea and SE N ordic S eas sink areas, including the N orth S ea F an, to their assumed F ennoscandian source area gives an average vertical erosion of 164 m for the 1.1–0.0 Ma time period. The average 1.1–0.0 Ma erosion rate in the F ennoscandian source area is estimated to be 0.15 mm a −1 . We suggest, however, that large variations in erosion rates have existed through time and that the most intense F ennoscandian landscape denudation occurred during the time period of repeated shelf edge ice advances, namely from M arine I sotope S tage 12 ( c . 0.5 Ma ) onwards. |
format |
Article in Journal/Newspaper |
author |
Hjelstuen, Berit Oline Nygård, Atle Sejrup, Hans Petter Haflidason, Haflidi |
spellingShingle |
Hjelstuen, Berit Oline Nygård, Atle Sejrup, Hans Petter Haflidason, Haflidi Quaternary denudation of southern Fennoscandia – evidence from the marine realm |
author_facet |
Hjelstuen, Berit Oline Nygård, Atle Sejrup, Hans Petter Haflidason, Haflidi |
author_sort |
Hjelstuen, Berit Oline |
title |
Quaternary denudation of southern Fennoscandia – evidence from the marine realm |
title_short |
Quaternary denudation of southern Fennoscandia – evidence from the marine realm |
title_full |
Quaternary denudation of southern Fennoscandia – evidence from the marine realm |
title_fullStr |
Quaternary denudation of southern Fennoscandia – evidence from the marine realm |
title_full_unstemmed |
Quaternary denudation of southern Fennoscandia – evidence from the marine realm |
title_sort |
quaternary denudation of southern fennoscandia – evidence from the marine realm |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1502-3885.2011.00239.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.2011.00239.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.2011.00239.x |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_source |
Boreas volume 41, issue 3, page 379-390 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1502-3885.2011.00239.x |
container_title |
Boreas |
container_volume |
41 |
container_issue |
3 |
container_start_page |
379 |
op_container_end_page |
390 |
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1809909286626656256 |