Retreat dynamics of the eastern sector of the British–Irish Ice Sheet during the last glaciation
ABSTRACT The findings of BRITICE‐CHRONO Transect 2 through the North Sea Basin and eastern England are reported. We define ice‐sheet marginal oscillation between ~31 and 16 ka, with seven distinctive former ice‐sheet limits (L1–7) constrained by Bayesian statistical analysis. The southernmost limit...
Published in: | Journal of Quaternary Science |
---|---|
Main Authors: | , , , , , , , , , , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2021
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/jqs.3275 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3275 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3275 |
id |
crwiley:10.1002/jqs.3275 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/jqs.3275 2024-09-15T18:12:10+00:00 Retreat dynamics of the eastern sector of the British–Irish Ice Sheet during the last glaciation Evans, David J. A. Roberts, David H. Bateman, Mark D. Clark, Chris D. Medialdea, Alicia Callard, Louise Grimoldi, Elena Chiverrell, Richard C. Ely, Jeremy Dove, Dayton Ó Cofaigh, Colm Saher, Margot Bradwell, Tom Moreton, Steven G. Fabel, Derek Bradley, Sarah L. Natural Environment Research Council 2021 http://dx.doi.org/10.1002/jqs.3275 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3275 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3275 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Journal of Quaternary Science volume 36, issue 5, page 723-751 ISSN 0267-8179 1099-1417 journal-article 2021 crwiley https://doi.org/10.1002/jqs.3275 2024-08-09T04:20:39Z ABSTRACT The findings of BRITICE‐CHRONO Transect 2 through the North Sea Basin and eastern England are reported. We define ice‐sheet marginal oscillation between ~31 and 16 ka, with seven distinctive former ice‐sheet limits (L1–7) constrained by Bayesian statistical analysis. The southernmost limit of the North Sea Lobe is recorded by the Bolders Bank Formation (L1; 25.8–24.6 ka). L2 represents ice‐sheet oscillation and early retreat to the northern edge of the Dogger Bank (23.5–22.2 ka), with the Garret Hill Moraine in north Norfolk recording a significant regional readvance to L3 at 21.5–20.8 ka. Ice‐marginal oscillations at ~26–21 ka resulted in L1, L2 and L3 being partially to totally overprinted. Ice‐dammed lakes related to L1–3, including Lake Humber, are dated at 24.1–22.3 ka. Ice‐sheet oscillation and retreat from L4 to L5 occurred between 19.7 and 17.3 ka, with grounding zone wedges marking an important transition from terrestrial to marine tidewater conditions, triggered by the opening of the Dogger Lake spillway between 19.9 and 17.5 ka. L6 relates to ice retreat under glacimarine conditions and final ice retreat into the Firth of Forth by 15.8 ka. L7 (~15 ka) represents an ice retreat from Bosies Bank into the Moray Firth. Article in Journal/Newspaper Ice Sheet Wiley Online Library Journal of Quaternary Science 36 5 723 751 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT The findings of BRITICE‐CHRONO Transect 2 through the North Sea Basin and eastern England are reported. We define ice‐sheet marginal oscillation between ~31 and 16 ka, with seven distinctive former ice‐sheet limits (L1–7) constrained by Bayesian statistical analysis. The southernmost limit of the North Sea Lobe is recorded by the Bolders Bank Formation (L1; 25.8–24.6 ka). L2 represents ice‐sheet oscillation and early retreat to the northern edge of the Dogger Bank (23.5–22.2 ka), with the Garret Hill Moraine in north Norfolk recording a significant regional readvance to L3 at 21.5–20.8 ka. Ice‐marginal oscillations at ~26–21 ka resulted in L1, L2 and L3 being partially to totally overprinted. Ice‐dammed lakes related to L1–3, including Lake Humber, are dated at 24.1–22.3 ka. Ice‐sheet oscillation and retreat from L4 to L5 occurred between 19.7 and 17.3 ka, with grounding zone wedges marking an important transition from terrestrial to marine tidewater conditions, triggered by the opening of the Dogger Lake spillway between 19.9 and 17.5 ka. L6 relates to ice retreat under glacimarine conditions and final ice retreat into the Firth of Forth by 15.8 ka. L7 (~15 ka) represents an ice retreat from Bosies Bank into the Moray Firth. |
author2 |
Natural Environment Research Council |
format |
Article in Journal/Newspaper |
author |
Evans, David J. A. Roberts, David H. Bateman, Mark D. Clark, Chris D. Medialdea, Alicia Callard, Louise Grimoldi, Elena Chiverrell, Richard C. Ely, Jeremy Dove, Dayton Ó Cofaigh, Colm Saher, Margot Bradwell, Tom Moreton, Steven G. Fabel, Derek Bradley, Sarah L. |
spellingShingle |
Evans, David J. A. Roberts, David H. Bateman, Mark D. Clark, Chris D. Medialdea, Alicia Callard, Louise Grimoldi, Elena Chiverrell, Richard C. Ely, Jeremy Dove, Dayton Ó Cofaigh, Colm Saher, Margot Bradwell, Tom Moreton, Steven G. Fabel, Derek Bradley, Sarah L. Retreat dynamics of the eastern sector of the British–Irish Ice Sheet during the last glaciation |
author_facet |
Evans, David J. A. Roberts, David H. Bateman, Mark D. Clark, Chris D. Medialdea, Alicia Callard, Louise Grimoldi, Elena Chiverrell, Richard C. Ely, Jeremy Dove, Dayton Ó Cofaigh, Colm Saher, Margot Bradwell, Tom Moreton, Steven G. Fabel, Derek Bradley, Sarah L. |
author_sort |
Evans, David J. A. |
title |
Retreat dynamics of the eastern sector of the British–Irish Ice Sheet during the last glaciation |
title_short |
Retreat dynamics of the eastern sector of the British–Irish Ice Sheet during the last glaciation |
title_full |
Retreat dynamics of the eastern sector of the British–Irish Ice Sheet during the last glaciation |
title_fullStr |
Retreat dynamics of the eastern sector of the British–Irish Ice Sheet during the last glaciation |
title_full_unstemmed |
Retreat dynamics of the eastern sector of the British–Irish Ice Sheet during the last glaciation |
title_sort |
retreat dynamics of the eastern sector of the british–irish ice sheet during the last glaciation |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/jqs.3275 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3275 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3275 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Journal of Quaternary Science volume 36, issue 5, page 723-751 ISSN 0267-8179 1099-1417 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/jqs.3275 |
container_title |
Journal of Quaternary Science |
container_volume |
36 |
container_issue |
5 |
container_start_page |
723 |
op_container_end_page |
751 |
_version_ |
1810449752856199168 |