The surface geometry of the Last Glacial Maximum ice sheet in the Andoya-Skanland region, northern Norway, constrained by surface exposure dating and clay mineralogy
Blockfields, weathering boundaries and marginal moraines have been mapped along a longitudinal transect from northern Andoya to Skanland in northern Norway. The degree of rock-surface weathering above and below glacial trimlines, clay-mineral assemblages and surface exposure dating based on in situ...
Published in: | Boreas |
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Language: | English |
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2007
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-surface-geometry-of-the-last-glacial-maximum-ice-sheet-in-the-andoyaskanland-region-northern-norway-constrained-by-surface-exposure-dating-and-clay-mineralogy(fb5024b5-23d2-4bad-bd2f-e836280ba512).html https://doi.org/10.1080/03009480601024804 http://www.scopus.com/inward/record.url?scp=34250873407&partnerID=8YFLogxK |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/fb5024b5-23d2-4bad-bd2f-e836280ba512 2023-05-15T16:39:43+02:00 The surface geometry of the Last Glacial Maximum ice sheet in the Andoya-Skanland region, northern Norway, constrained by surface exposure dating and clay mineralogy Nesje, Atle Dahl, Svein Olaf Linge, Henriette Ballantyne, Colin K. Mccarroll, Danny Brook, Edward J. Raisbeck, Grant M. Yiou, Francoise 2007 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-surface-geometry-of-the-last-glacial-maximum-ice-sheet-in-the-andoyaskanland-region-northern-norway-constrained-by-surface-exposure-dating-and-clay-mineralogy(fb5024b5-23d2-4bad-bd2f-e836280ba512).html https://doi.org/10.1080/03009480601024804 http://www.scopus.com/inward/record.url?scp=34250873407&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Nesje , A , Dahl , S O , Linge , H , Ballantyne , C K , Mccarroll , D , Brook , E J , Raisbeck , G M & Yiou , F 2007 , ' The surface geometry of the Last Glacial Maximum ice sheet in the Andoya-Skanland region, northern Norway, constrained by surface exposure dating and clay mineralogy ' , Boreas , vol. 36 , pp. 227-239 . https://doi.org/10.1080/03009480601024804 SOUTHERN-NORWAY WESTERN NORWAY COSMOGENIC NUCLIDES NORTHWEST SCOTLAND VERTICAL EXTENT NEDRE-AERASVATN BLOCK FIELDS DEGLACIATION STRATIGRAPHY MIDDLE article 2007 ftunstandrewcris https://doi.org/10.1080/03009480601024804 2021-12-26T14:15:57Z Blockfields, weathering boundaries and marginal moraines have been mapped along a longitudinal transect from northern Andoya to Skanland in northern Norway. The degree of rock-surface weathering above and below glacial trimlines, clay-mineral assemblages and surface exposure dating based on in situ cosmogenic 10 Be have been used to reconstruct the vertical dimensions and timing of the Last Glacial Maximum (LGM) of the Scandinavian Ice Sheet in this region. The cosmogenic exposure dates suggest that the lower blockfield boundary/ trimline along the Andoya-Skanland transect represents the upper limit of the Late Weichselian ice sheet, with an average surface gradient of c. 9.5 m/km. The surface exposure dates from Andoya pre-date the LGM, suggesting that the LGM ice sheet did not reach mountain plateaux at northwest Andoya. The results thus support evidence from lake sediment records that the northern tip of Andoya was not covered by the Scandinavian Ice Sheet during the LGM. Article in Journal/Newspaper Ice Sheet Northern Norway University of St Andrews: Research Portal Norway Boreas 36 3 227 239 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
SOUTHERN-NORWAY WESTERN NORWAY COSMOGENIC NUCLIDES NORTHWEST SCOTLAND VERTICAL EXTENT NEDRE-AERASVATN BLOCK FIELDS DEGLACIATION STRATIGRAPHY MIDDLE |
spellingShingle |
SOUTHERN-NORWAY WESTERN NORWAY COSMOGENIC NUCLIDES NORTHWEST SCOTLAND VERTICAL EXTENT NEDRE-AERASVATN BLOCK FIELDS DEGLACIATION STRATIGRAPHY MIDDLE Nesje, Atle Dahl, Svein Olaf Linge, Henriette Ballantyne, Colin K. Mccarroll, Danny Brook, Edward J. Raisbeck, Grant M. Yiou, Francoise The surface geometry of the Last Glacial Maximum ice sheet in the Andoya-Skanland region, northern Norway, constrained by surface exposure dating and clay mineralogy |
topic_facet |
SOUTHERN-NORWAY WESTERN NORWAY COSMOGENIC NUCLIDES NORTHWEST SCOTLAND VERTICAL EXTENT NEDRE-AERASVATN BLOCK FIELDS DEGLACIATION STRATIGRAPHY MIDDLE |
description |
Blockfields, weathering boundaries and marginal moraines have been mapped along a longitudinal transect from northern Andoya to Skanland in northern Norway. The degree of rock-surface weathering above and below glacial trimlines, clay-mineral assemblages and surface exposure dating based on in situ cosmogenic 10 Be have been used to reconstruct the vertical dimensions and timing of the Last Glacial Maximum (LGM) of the Scandinavian Ice Sheet in this region. The cosmogenic exposure dates suggest that the lower blockfield boundary/ trimline along the Andoya-Skanland transect represents the upper limit of the Late Weichselian ice sheet, with an average surface gradient of c. 9.5 m/km. The surface exposure dates from Andoya pre-date the LGM, suggesting that the LGM ice sheet did not reach mountain plateaux at northwest Andoya. The results thus support evidence from lake sediment records that the northern tip of Andoya was not covered by the Scandinavian Ice Sheet during the LGM. |
format |
Article in Journal/Newspaper |
author |
Nesje, Atle Dahl, Svein Olaf Linge, Henriette Ballantyne, Colin K. Mccarroll, Danny Brook, Edward J. Raisbeck, Grant M. Yiou, Francoise |
author_facet |
Nesje, Atle Dahl, Svein Olaf Linge, Henriette Ballantyne, Colin K. Mccarroll, Danny Brook, Edward J. Raisbeck, Grant M. Yiou, Francoise |
author_sort |
Nesje, Atle |
title |
The surface geometry of the Last Glacial Maximum ice sheet in the Andoya-Skanland region, northern Norway, constrained by surface exposure dating and clay mineralogy |
title_short |
The surface geometry of the Last Glacial Maximum ice sheet in the Andoya-Skanland region, northern Norway, constrained by surface exposure dating and clay mineralogy |
title_full |
The surface geometry of the Last Glacial Maximum ice sheet in the Andoya-Skanland region, northern Norway, constrained by surface exposure dating and clay mineralogy |
title_fullStr |
The surface geometry of the Last Glacial Maximum ice sheet in the Andoya-Skanland region, northern Norway, constrained by surface exposure dating and clay mineralogy |
title_full_unstemmed |
The surface geometry of the Last Glacial Maximum ice sheet in the Andoya-Skanland region, northern Norway, constrained by surface exposure dating and clay mineralogy |
title_sort |
surface geometry of the last glacial maximum ice sheet in the andoya-skanland region, northern norway, constrained by surface exposure dating and clay mineralogy |
publishDate |
2007 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/the-surface-geometry-of-the-last-glacial-maximum-ice-sheet-in-the-andoyaskanland-region-northern-norway-constrained-by-surface-exposure-dating-and-clay-mineralogy(fb5024b5-23d2-4bad-bd2f-e836280ba512).html https://doi.org/10.1080/03009480601024804 http://www.scopus.com/inward/record.url?scp=34250873407&partnerID=8YFLogxK |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Ice Sheet Northern Norway |
genre_facet |
Ice Sheet Northern Norway |
op_source |
Nesje , A , Dahl , S O , Linge , H , Ballantyne , C K , Mccarroll , D , Brook , E J , Raisbeck , G M & Yiou , F 2007 , ' The surface geometry of the Last Glacial Maximum ice sheet in the Andoya-Skanland region, northern Norway, constrained by surface exposure dating and clay mineralogy ' , Boreas , vol. 36 , pp. 227-239 . https://doi.org/10.1080/03009480601024804 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1080/03009480601024804 |
container_title |
Boreas |
container_volume |
36 |
container_issue |
3 |
container_start_page |
227 |
op_container_end_page |
239 |
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1766030048117129216 |