Large-scale glacitectonic deformation in response to active ice sheet retreat across Dogger Bank (southern central North Sea) during the Last Glacial Maximum
High resolution seismic data from the Dogger Bank in the central southern North Sea has revealed that the Dogger Bank Formation records a complex history of sedimentation and penecontemporaneous, large-scale, ice-marginal to proglacial glacitectonic deformation. These processes led to the developmen...
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Online Access: | http://insight.cumbria.ac.uk/id/eprint/4558/ https://insight.cumbria.ac.uk/id/eprint/4558/1/Carr_LargeScaleGlacitectonic.pdf https://doi.org/10.1016/j.quascirev.2017.11.001 |
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ftunivcumbria:oai:insight.cumbria.ac.uk:4558 2023-05-15T16:40:16+02:00 Large-scale glacitectonic deformation in response to active ice sheet retreat across Dogger Bank (southern central North Sea) during the Last Glacial Maximum Phillips, Emrys Cotterill, Carol Johnson, Kirstin Crombie, Kirstin James, Leo Carr, Simon Ruiter, Astrid 2018-01-01 application/pdf http://insight.cumbria.ac.uk/id/eprint/4558/ https://insight.cumbria.ac.uk/id/eprint/4558/1/Carr_LargeScaleGlacitectonic.pdf https://doi.org/10.1016/j.quascirev.2017.11.001 en eng Elsevier https://insight.cumbria.ac.uk/id/eprint/4558/1/Carr_LargeScaleGlacitectonic.pdf Phillips, Emrys, Cotterill, Carol, Johnson, Kirstin, Crombie, Kirstin, James, Leo, Carr, Simon and Ruiter, Astrid (2018) Large-scale glacitectonic deformation in response to active ice sheet retreat across Dogger Bank (southern central North Sea) during the Last Glacial Maximum. Quaternary Science Reviews, 179 . 24 - 47. cc_by_nc_nd_4 CC-BY-NC-ND 550 Earth sciences & geology 554 Earth sciences of Europe Article PeerReviewed 2018 ftunivcumbria https://doi.org/10.1016/j.quascirev.2017.11.001 2022-02-22T08:19:43Z High resolution seismic data from the Dogger Bank in the central southern North Sea has revealed that the Dogger Bank Formation records a complex history of sedimentation and penecontemporaneous, large-scale, ice-marginal to proglacial glacitectonic deformation. These processes led to the development of a large thrust-block moraine complex which is buried beneath a thin sequence of Holocene sediments. This buried glacitectonic landsystem comprises a series of elongate, arcuate moraine ridges (200 m up to > 15 km across; over 40–50 km long) separated by low-lying ice marginal to proglacial sedimentary basins and/or meltwater channels, preserving the shape of the margin of this former ice sheet. The moraines are composed of highly deformed (folded and thrust) Dogger Bank Formation with the lower boundary of the deformed sequence (up to 40–50 m thick) being marked by a laterally extensive décollement. The ice-distal parts of the thrust moraine complex are interpreted as a “forward” propagating imbricate thrust stack developed in response to S/SE-directed ice-push. The more complex folding and thrusting within the more ice-proximal parts of the thrust-block moraines record the accretion of thrust slices of highly deformed sediment as the ice repeatedly reoccupied this ice marginal position. Consequently, the internal structure of the Dogger Bank thrust-moraine complexes can be directly related to ice sheet dynamics, recording the former positions of a highly dynamic, oscillating Weichselian ice sheet margin as it retreated northwards at the end of the Last Glacial Maximum. Article in Journal/Newspaper Ice Sheet University of Cumbria: Insight Dogger Bank ENVELOPE(2.333,2.333,54.833,54.833) Quaternary Science Reviews 179 24 47 |
institution |
Open Polar |
collection |
University of Cumbria: Insight |
op_collection_id |
ftunivcumbria |
language |
English |
topic |
550 Earth sciences & geology 554 Earth sciences of Europe |
spellingShingle |
550 Earth sciences & geology 554 Earth sciences of Europe Phillips, Emrys Cotterill, Carol Johnson, Kirstin Crombie, Kirstin James, Leo Carr, Simon Ruiter, Astrid Large-scale glacitectonic deformation in response to active ice sheet retreat across Dogger Bank (southern central North Sea) during the Last Glacial Maximum |
topic_facet |
550 Earth sciences & geology 554 Earth sciences of Europe |
description |
High resolution seismic data from the Dogger Bank in the central southern North Sea has revealed that the Dogger Bank Formation records a complex history of sedimentation and penecontemporaneous, large-scale, ice-marginal to proglacial glacitectonic deformation. These processes led to the development of a large thrust-block moraine complex which is buried beneath a thin sequence of Holocene sediments. This buried glacitectonic landsystem comprises a series of elongate, arcuate moraine ridges (200 m up to > 15 km across; over 40–50 km long) separated by low-lying ice marginal to proglacial sedimentary basins and/or meltwater channels, preserving the shape of the margin of this former ice sheet. The moraines are composed of highly deformed (folded and thrust) Dogger Bank Formation with the lower boundary of the deformed sequence (up to 40–50 m thick) being marked by a laterally extensive décollement. The ice-distal parts of the thrust moraine complex are interpreted as a “forward” propagating imbricate thrust stack developed in response to S/SE-directed ice-push. The more complex folding and thrusting within the more ice-proximal parts of the thrust-block moraines record the accretion of thrust slices of highly deformed sediment as the ice repeatedly reoccupied this ice marginal position. Consequently, the internal structure of the Dogger Bank thrust-moraine complexes can be directly related to ice sheet dynamics, recording the former positions of a highly dynamic, oscillating Weichselian ice sheet margin as it retreated northwards at the end of the Last Glacial Maximum. |
format |
Article in Journal/Newspaper |
author |
Phillips, Emrys Cotterill, Carol Johnson, Kirstin Crombie, Kirstin James, Leo Carr, Simon Ruiter, Astrid |
author_facet |
Phillips, Emrys Cotterill, Carol Johnson, Kirstin Crombie, Kirstin James, Leo Carr, Simon Ruiter, Astrid |
author_sort |
Phillips, Emrys |
title |
Large-scale glacitectonic deformation in response to active ice sheet retreat across Dogger Bank (southern central North Sea) during the Last Glacial Maximum |
title_short |
Large-scale glacitectonic deformation in response to active ice sheet retreat across Dogger Bank (southern central North Sea) during the Last Glacial Maximum |
title_full |
Large-scale glacitectonic deformation in response to active ice sheet retreat across Dogger Bank (southern central North Sea) during the Last Glacial Maximum |
title_fullStr |
Large-scale glacitectonic deformation in response to active ice sheet retreat across Dogger Bank (southern central North Sea) during the Last Glacial Maximum |
title_full_unstemmed |
Large-scale glacitectonic deformation in response to active ice sheet retreat across Dogger Bank (southern central North Sea) during the Last Glacial Maximum |
title_sort |
large-scale glacitectonic deformation in response to active ice sheet retreat across dogger bank (southern central north sea) during the last glacial maximum |
publisher |
Elsevier |
publishDate |
2018 |
url |
http://insight.cumbria.ac.uk/id/eprint/4558/ https://insight.cumbria.ac.uk/id/eprint/4558/1/Carr_LargeScaleGlacitectonic.pdf https://doi.org/10.1016/j.quascirev.2017.11.001 |
long_lat |
ENVELOPE(2.333,2.333,54.833,54.833) |
geographic |
Dogger Bank |
geographic_facet |
Dogger Bank |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
https://insight.cumbria.ac.uk/id/eprint/4558/1/Carr_LargeScaleGlacitectonic.pdf Phillips, Emrys, Cotterill, Carol, Johnson, Kirstin, Crombie, Kirstin, James, Leo, Carr, Simon and Ruiter, Astrid (2018) Large-scale glacitectonic deformation in response to active ice sheet retreat across Dogger Bank (southern central North Sea) during the Last Glacial Maximum. Quaternary Science Reviews, 179 . 24 - 47. |
op_rights |
cc_by_nc_nd_4 |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.quascirev.2017.11.001 |
container_title |
Quaternary Science Reviews |
container_volume |
179 |
container_start_page |
24 |
op_container_end_page |
47 |
_version_ |
1766030646346514432 |