Maximum extent and readvance dynamics of the Irish Sea Ice Stream and Irish Sea Glacier since the Last Glacial Maximum

James D Scourse; Richard Chiverrell; R K Smedley; David Small; M J Burke; Margot Saher; Katrien J. J. Van Landeghem; Geoff A. T. Duller; C Ó Cofaigh; MD Bateman; S. Benetti; Sarah Bradley; Louise Callard; D J A Evans; Derek Fabel; G T H Jenkins; S. McCarron; Alicia Medialdea; Steve Moreton; X Ou; Daniel Praeg; D H Roberts; H M Roberts; C.D. Clark

doi:10.1002/jqs.3313

Maximum extent and readvance dynamics of the Irish Sea Ice Stream and Irish Sea Glacier since the Last Glacial Maximum

James D Scourse, Richard Chiverrell, R K Smedley, David Small, M J Burke, Margot Saher, Katrien J. J. Van Landeghem, Geoff A. T. Duller, C Ó Cofaigh, MD Bateman, S. Benetti, Sarah Bradley, Louise Callard, D J A Evans, Derek Fabel, G T H Jenkins, S. McCarron, Alicia Medialdea, Steve Moreton, X OuDaniel Praeg, D H Roberts, H M Roberts, C.D. Clark

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Abstract

The BRITICE‐CHRONO Project has generated a suite of recently published radiocarbon ages from deglacial sequences offshore in the Celtic and Irish seas and terrestrial cosmogenic nuclide and optically stimulated luminescence ages from adjacent onshore sites. All published data are integrated here with new geochronological data from Wales in a revised Bayesian analysis that enables reconstruction of ice retreat dynamics across the basin. Patterns and changes in the pace of deglaciation are conditioned more by topographic constraints and internal ice dynamics than by external controls. The data indicate a major but rapid and very short‐lived extensive thin ice advance of the Irish Sea Ice Stream (ISIS) more than 300 km south of St George's Channel to a marine calving margin at the shelf break at 25.5 ka; this may have been preceded by extensive ice accumulation plugging the constriction of St George's Channel. The release event between 25 and 26 ka is interpreted to have stimulated fast ice streaming and diverted ice to the west in the northern Irish Sea into the main axis of the marine ISIS away from terrestrial ice terminating in the English Midlands, a process initiating ice stagnation and the formation of an extensive dead ice landscape in the Midlands.

Original language	English
Pages (from-to)	780-804
Number of pages	25
Journal	Journal of Quaternary Science
Volume	36
Issue number	5
Early online date	7 May 2021
DOIs	https://doi.org/10.1002/jqs.3313
Publication status	Published online - 7 May 2021

Bibliographical note

Funding Information:
This research was supported by a Natural Environment Research Council consortium grant (BRITICE-CHRONO NE/J008672/1). Thanks are due to Sally Morgan and Elke Hanenkamp (University of Leicester) for acquisition and processing of multi-sensor core-logger data. The work was supported by the NERC Radiocarbon Facility (allocations 1530.0311, 1577.0911 and 1606.0312) and the NERC Cosmogenic Isotope Analysis Facility. We thank the staff at the SUERC AMS Laboratory, East Kilbride, for carbon isotope measurements, and the master and crew of the RRS James Cook, the BGS Marine Operations Team (vibrocorer) and the NOC/NMEP (piston corer). Daniel Praeg's participation has been in part supported by the Italian PNRA project IPY GLAMAR (grant no. 2009/A2.15). We thank two anonymous reviewers for their helpful and constructive comments.

Funding Information:
This research was supported by a Natural Environment Research Council consortium grant (BRITICE‐CHRONO NE/J008672/1). Thanks are due to Sally Morgan and Elke Hanenkamp (University of Leicester) for acquisition and processing of multi‐sensor core‐logger data. The work was supported by the NERC Radiocarbon Facility (allocations 1530.0311, 1577.0911 and 1606.0312) and the NERC Cosmogenic Isotope Analysis Facility. We thank the staff at the SUERC AMS Laboratory, East Kilbride, for carbon isotope measurements, and the master and crew of the RRS , the BGS Marine Operations Team (vibrocorer) and the NOC/NMEP (piston corer). Daniel Praeg's participation has been in part supported by the Italian PNRA project IPY GLAMAR (grant no. 2009/A2.15). We thank two anonymous reviewers for their helpful and constructive comments. James Cook

Publisher Copyright:
© 2021 The Authors Journal of Quaternary Science Published by John Wiley & Sons Ltd.

Keywords

deglaciation
geochronology
geomorphology
ice stream
marine geology
Arts and Humanities (miscellaneous)
Earth and Planetary Sciences (miscellaneous)
Palaeontology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Scourse, J. D., Chiverrell, R., Smedley, R. K., Small, D., Burke, M. J., Saher, M., Van Landeghem, K. J. J., Duller, G. A. T., Ó Cofaigh, C., Bateman, MD., Benetti, S., Bradley, S., Callard, L., Evans, D. J. A., Fabel, D., Jenkins, G. T. H., McCarron, S., Medialdea, A., Moreton, S., ... Clark, C. D. (2021). Maximum extent and readvance dynamics of the Irish Sea Ice Stream and Irish Sea Glacier since the Last Glacial Maximum. Journal of Quaternary Science, 36(5), 780-804. Advance online publication. https://doi.org/10.1002/jqs.3313

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title = "Maximum extent and readvance dynamics of the Irish Sea Ice Stream and Irish Sea Glacier since the Last Glacial Maximum",

abstract = "The BRITICE‐CHRONO Project has generated a suite of recently published radiocarbon ages from deglacial sequences offshore in the Celtic and Irish seas and terrestrial cosmogenic nuclide and optically stimulated luminescence ages from adjacent onshore sites. All published data are integrated here with new geochronological data from Wales in a revised Bayesian analysis that enables reconstruction of ice retreat dynamics across the basin. Patterns and changes in the pace of deglaciation are conditioned more by topographic constraints and internal ice dynamics than by external controls. The data indicate a major but rapid and very short‐lived extensive thin ice advance of the Irish Sea Ice Stream (ISIS) more than 300 km south of St George's Channel to a marine calving margin at the shelf break at 25.5 ka; this may have been preceded by extensive ice accumulation plugging the constriction of St George's Channel. The release event between 25 and 26 ka is interpreted to have stimulated fast ice streaming and diverted ice to the west in the northern Irish Sea into the main axis of the marine ISIS away from terrestrial ice terminating in the English Midlands, a process initiating ice stagnation and the formation of an extensive dead ice landscape in the Midlands.",

keywords = "deglaciation, geochronology, geomorphology, ice stream, marine geology, Arts and Humanities (miscellaneous), Earth and Planetary Sciences (miscellaneous), Palaeontology",

author = "Scourse, {James D} and Richard Chiverrell and Smedley, {R K} and David Small and Burke, {M J} and Margot Saher and {Van Landeghem}, {Katrien J. J.} and Duller, {Geoff A. T.} and {{\'O} Cofaigh}, C and MD Bateman and S. Benetti and Sarah Bradley and Louise Callard and Evans, {D J A} and Derek Fabel and Jenkins, {G T H} and S. McCarron and Alicia Medialdea and Steve Moreton and X Ou and Daniel Praeg and Roberts, {D H} and Roberts, {H M} and C.D. Clark",

note = "Funding Information: This research was supported by a Natural Environment Research Council consortium grant (BRITICE-CHRONO NE/J008672/1). Thanks are due to Sally Morgan and Elke Hanenkamp (University of Leicester) for acquisition and processing of multi-sensor core-logger data. The work was supported by the NERC Radiocarbon Facility (allocations 1530.0311, 1577.0911 and 1606.0312) and the NERC Cosmogenic Isotope Analysis Facility. We thank the staff at the SUERC AMS Laboratory, East Kilbride, for carbon isotope measurements, and the master and crew of the RRS James Cook, the BGS Marine Operations Team (vibrocorer) and the NOC/NMEP (piston corer). Daniel Praeg's participation has been in part supported by the Italian PNRA project IPY GLAMAR (grant no. 2009/A2.15). We thank two anonymous reviewers for their helpful and constructive comments. Funding Information: This research was supported by a Natural Environment Research Council consortium grant (BRITICE‐CHRONO NE/J008672/1). Thanks are due to Sally Morgan and Elke Hanenkamp (University of Leicester) for acquisition and processing of multi‐sensor core‐logger data. The work was supported by the NERC Radiocarbon Facility (allocations 1530.0311, 1577.0911 and 1606.0312) and the NERC Cosmogenic Isotope Analysis Facility. We thank the staff at the SUERC AMS Laboratory, East Kilbride, for carbon isotope measurements, and the master and crew of the RRS , the BGS Marine Operations Team (vibrocorer) and the NOC/NMEP (piston corer). Daniel Praeg's participation has been in part supported by the Italian PNRA project IPY GLAMAR (grant no. 2009/A2.15). We thank two anonymous reviewers for their helpful and constructive comments. James Cook Publisher Copyright: {\textcopyright} 2021 The Authors Journal of Quaternary Science Published by John Wiley & Sons Ltd.",

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Scourse, JD, Chiverrell, R, Smedley, RK, Small, D, Burke, MJ, Saher, M, Van Landeghem, KJJ, Duller, GAT, Ó Cofaigh, C, Bateman, MD, Benetti, S, Bradley, S, Callard, L, Evans, DJA, Fabel, D, Jenkins, GTH, McCarron, S, Medialdea, A, Moreton, S, Ou, X, Praeg, D, Roberts, DH, Roberts, HM & Clark, CD 2021, 'Maximum extent and readvance dynamics of the Irish Sea Ice Stream and Irish Sea Glacier since the Last Glacial Maximum', Journal of Quaternary Science, vol. 36, no. 5, pp. 780-804. https://doi.org/10.1002/jqs.3313

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T1 - Maximum extent and readvance dynamics of the Irish Sea Ice Stream and Irish Sea Glacier since the Last Glacial Maximum

AU - Scourse, James D

AU - Chiverrell, Richard

AU - Smedley, R K

AU - Small, David

AU - Burke, M J

AU - Saher, Margot

AU - Van Landeghem, Katrien J. J.

AU - Duller, Geoff A. T.

AU - Ó Cofaigh, C

AU - Bateman, MD

AU - Benetti, S.

AU - Bradley, Sarah

AU - Callard, Louise

AU - Evans, D J A

AU - Fabel, Derek

AU - Jenkins, G T H

AU - McCarron, S.

AU - Medialdea, Alicia

AU - Moreton, Steve

AU - Ou, X

AU - Praeg, Daniel

AU - Roberts, D H

AU - Roberts, H M

AU - Clark, C.D.

N1 - Funding Information: This research was supported by a Natural Environment Research Council consortium grant (BRITICE-CHRONO NE/J008672/1). Thanks are due to Sally Morgan and Elke Hanenkamp (University of Leicester) for acquisition and processing of multi-sensor core-logger data. The work was supported by the NERC Radiocarbon Facility (allocations 1530.0311, 1577.0911 and 1606.0312) and the NERC Cosmogenic Isotope Analysis Facility. We thank the staff at the SUERC AMS Laboratory, East Kilbride, for carbon isotope measurements, and the master and crew of the RRS James Cook, the BGS Marine Operations Team (vibrocorer) and the NOC/NMEP (piston corer). Daniel Praeg's participation has been in part supported by the Italian PNRA project IPY GLAMAR (grant no. 2009/A2.15). We thank two anonymous reviewers for their helpful and constructive comments. Funding Information: This research was supported by a Natural Environment Research Council consortium grant (BRITICE‐CHRONO NE/J008672/1). Thanks are due to Sally Morgan and Elke Hanenkamp (University of Leicester) for acquisition and processing of multi‐sensor core‐logger data. The work was supported by the NERC Radiocarbon Facility (allocations 1530.0311, 1577.0911 and 1606.0312) and the NERC Cosmogenic Isotope Analysis Facility. We thank the staff at the SUERC AMS Laboratory, East Kilbride, for carbon isotope measurements, and the master and crew of the RRS , the BGS Marine Operations Team (vibrocorer) and the NOC/NMEP (piston corer). Daniel Praeg's participation has been in part supported by the Italian PNRA project IPY GLAMAR (grant no. 2009/A2.15). We thank two anonymous reviewers for their helpful and constructive comments. James Cook Publisher Copyright: © 2021 The Authors Journal of Quaternary Science Published by John Wiley & Sons Ltd.

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N2 - The BRITICE‐CHRONO Project has generated a suite of recently published radiocarbon ages from deglacial sequences offshore in the Celtic and Irish seas and terrestrial cosmogenic nuclide and optically stimulated luminescence ages from adjacent onshore sites. All published data are integrated here with new geochronological data from Wales in a revised Bayesian analysis that enables reconstruction of ice retreat dynamics across the basin. Patterns and changes in the pace of deglaciation are conditioned more by topographic constraints and internal ice dynamics than by external controls. The data indicate a major but rapid and very short‐lived extensive thin ice advance of the Irish Sea Ice Stream (ISIS) more than 300 km south of St George's Channel to a marine calving margin at the shelf break at 25.5 ka; this may have been preceded by extensive ice accumulation plugging the constriction of St George's Channel. The release event between 25 and 26 ka is interpreted to have stimulated fast ice streaming and diverted ice to the west in the northern Irish Sea into the main axis of the marine ISIS away from terrestrial ice terminating in the English Midlands, a process initiating ice stagnation and the formation of an extensive dead ice landscape in the Midlands.

AB - The BRITICE‐CHRONO Project has generated a suite of recently published radiocarbon ages from deglacial sequences offshore in the Celtic and Irish seas and terrestrial cosmogenic nuclide and optically stimulated luminescence ages from adjacent onshore sites. All published data are integrated here with new geochronological data from Wales in a revised Bayesian analysis that enables reconstruction of ice retreat dynamics across the basin. Patterns and changes in the pace of deglaciation are conditioned more by topographic constraints and internal ice dynamics than by external controls. The data indicate a major but rapid and very short‐lived extensive thin ice advance of the Irish Sea Ice Stream (ISIS) more than 300 km south of St George's Channel to a marine calving margin at the shelf break at 25.5 ka; this may have been preceded by extensive ice accumulation plugging the constriction of St George's Channel. The release event between 25 and 26 ka is interpreted to have stimulated fast ice streaming and diverted ice to the west in the northern Irish Sea into the main axis of the marine ISIS away from terrestrial ice terminating in the English Midlands, a process initiating ice stagnation and the formation of an extensive dead ice landscape in the Midlands.

KW - deglaciation

KW - geochronology

KW - geomorphology

KW - ice stream

KW - marine geology

KW - Arts and Humanities (miscellaneous)

KW - Earth and Planetary Sciences (miscellaneous)

KW - Palaeontology

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U2 - 10.1002/jqs.3313

DO - 10.1002/jqs.3313

M3 - Article

SN - 0267-8179

VL - 36

SP - 780

EP - 804

JO - Journal of Quaternary Science

JF - Journal of Quaternary Science

IS - 5

ER -

Maximum extent and readvance dynamics of the Irish Sea Ice Stream and Irish Sea Glacier since the Last Glacial Maximum

Abstract

Bibliographical note

Keywords

UN SDGs

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