Using novel methods to track British and Irish Ice Sheet dynamics since the Late Pleistocene, along the west Porcupine Bank, NE Atlantic
Extensive research has been undertaken to elucidate the glacial history of the British Irish Ice Sheet (BIIS)in the NE Atlantic. BRITICE-CHRONO has compiled terrestrial and marine based evidence, to provide anempirical reconstruction of ice sheet expansion and retreat during the Late Pleistocene. Ac...
Published in: | Quaternary Science Reviews |
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Main Authors: | , , , , , , , , , , |
Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2022
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Subjects: | |
Online Access: | https://univ-angers.hal.science/hal-04278626 https://univ-angers.hal.science/hal-04278626/document https://univ-angers.hal.science/hal-04278626/file/1-s2.0-S0277379122000944-main.pdf https://doi.org/10.1016/j.quascirev.2022.107463 |
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ftccsdartic:oai:HAL:hal-04278626v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Quaternary North-east Atlantic Sedimentology-marine cores Ice-rafted debris Palaeoceanography British-Irish ice sheet (BIIS) [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
Quaternary North-east Atlantic Sedimentology-marine cores Ice-rafted debris Palaeoceanography British-Irish ice sheet (BIIS) [SDE.MCG]Environmental Sciences/Global Changes O'Reilly, Luke Lim, Aaron Titschack, Jürgen Moore, Niamh O'Connor, O, J Appah, John Fentimen, Robin Butschek, Felix Harris, Kimberley Vennemann, Torsten Wheeler, Andrew, J Using novel methods to track British and Irish Ice Sheet dynamics since the Late Pleistocene, along the west Porcupine Bank, NE Atlantic |
topic_facet |
Quaternary North-east Atlantic Sedimentology-marine cores Ice-rafted debris Palaeoceanography British-Irish ice sheet (BIIS) [SDE.MCG]Environmental Sciences/Global Changes |
description |
Extensive research has been undertaken to elucidate the glacial history of the British Irish Ice Sheet (BIIS)in the NE Atlantic. BRITICE-CHRONO has compiled terrestrial and marine based evidence, to provide anempirical reconstruction of ice sheet expansion and retreat during the Late Pleistocene. Across the Irishmargin, particular focus has been given to seafloor sediments which contain ice-rafted debris (IRD).However, there are few publications on IRD from areas proximal to the maximum extent of the BIIS,which would offer further insights on the behaviour of the ice sheet during (de)glacial events. Previousexploratory surveys of the west Porcupine Bank (wPB) visually identified IRD on the seafloor and thesepresent a new study site to investigate the extent of the BIIS and the course of its icebergs. Moreover,there are uncertainties about the effects of icebergs on the marine life and cold-water corals occupyingthe nearby Porcupine Bank Canyon. Assessing a sediment core containing an IRD analogue for the wPBwould thus, have a dual purpose. In the past however, coring missions of the wPB using traditional coringmethods (i.e. piston and gravity cores) were unsuccessful. Here, we utilized a novel ROV-mountedvibrocoring procedure to capture a 0.75 m IRD-bearing sediment core from the wPB. Then furthernovel analytical methods (computed tomography-based IRD-detection) were used to quantify IRD every0.02 cm to provide the highest resolution record of BIIS related IRD to date. From this, several fluxes ofIRD deposition onto the wPB between 31.6 and 9 ka BP were revealed and corroborated by other publishedrecords from across the NE Atlantic. It was shown that the wPB IRD fluxes occur simultaneouslywith other parts of the margin. The IRD signal also shows that iceberg calving occurred on the wPBduring the Younger Dryas. Grain-size analysis of the core allowed for a reconstruction and interpretationof the palaeoenvironmental conditions during these IRD flux events and shows that BIIS-derived glaciershad a major impact on ... |
author2 |
University College Cork (UCC) Center for Marine Environmental Sciences Bremen (MARUM) Universität Bremen Laboratoire de Planétologie et Géosciences UMR_C 6112 (LPG) Le Mans Université (UM)-Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST) Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ) Université de Lausanne = University of Lausanne (UNIL) |
format |
Article in Journal/Newspaper |
author |
O'Reilly, Luke Lim, Aaron Titschack, Jürgen Moore, Niamh O'Connor, O, J Appah, John Fentimen, Robin Butschek, Felix Harris, Kimberley Vennemann, Torsten Wheeler, Andrew, J |
author_facet |
O'Reilly, Luke Lim, Aaron Titschack, Jürgen Moore, Niamh O'Connor, O, J Appah, John Fentimen, Robin Butschek, Felix Harris, Kimberley Vennemann, Torsten Wheeler, Andrew, J |
author_sort |
O'Reilly, Luke |
title |
Using novel methods to track British and Irish Ice Sheet dynamics since the Late Pleistocene, along the west Porcupine Bank, NE Atlantic |
title_short |
Using novel methods to track British and Irish Ice Sheet dynamics since the Late Pleistocene, along the west Porcupine Bank, NE Atlantic |
title_full |
Using novel methods to track British and Irish Ice Sheet dynamics since the Late Pleistocene, along the west Porcupine Bank, NE Atlantic |
title_fullStr |
Using novel methods to track British and Irish Ice Sheet dynamics since the Late Pleistocene, along the west Porcupine Bank, NE Atlantic |
title_full_unstemmed |
Using novel methods to track British and Irish Ice Sheet dynamics since the Late Pleistocene, along the west Porcupine Bank, NE Atlantic |
title_sort |
using novel methods to track british and irish ice sheet dynamics since the late pleistocene, along the west porcupine bank, ne atlantic |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://univ-angers.hal.science/hal-04278626 https://univ-angers.hal.science/hal-04278626/document https://univ-angers.hal.science/hal-04278626/file/1-s2.0-S0277379122000944-main.pdf https://doi.org/10.1016/j.quascirev.2022.107463 |
long_lat |
ENVELOPE(-13.667,-13.667,53.333,53.333) |
geographic |
Porcupine Bank |
geographic_facet |
Porcupine Bank |
genre |
Ice Sheet North East Atlantic |
genre_facet |
Ice Sheet North East Atlantic |
op_source |
ISSN: 0277-3791 Quaternary Science Reviews https://univ-angers.hal.science/hal-04278626 Quaternary Science Reviews, 2022, 284, pp.107463. ⟨10.1016/j.quascirev.2022.107463⟩ https://www.sciencedirect.com/science/article/pii/S0277379122000944?via%3Dihub |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2022.107463 hal-04278626 https://univ-angers.hal.science/hal-04278626 https://univ-angers.hal.science/hal-04278626/document https://univ-angers.hal.science/hal-04278626/file/1-s2.0-S0277379122000944-main.pdf doi:10.1016/j.quascirev.2022.107463 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2022.107463 |
container_title |
Quaternary Science Reviews |
container_volume |
284 |
container_start_page |
107463 |
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1790601589449293824 |
spelling |
ftccsdartic:oai:HAL:hal-04278626v1 2024-02-11T10:04:50+01:00 Using novel methods to track British and Irish Ice Sheet dynamics since the Late Pleistocene, along the west Porcupine Bank, NE Atlantic O'Reilly, Luke Lim, Aaron Titschack, Jürgen Moore, Niamh O'Connor, O, J Appah, John Fentimen, Robin Butschek, Felix Harris, Kimberley Vennemann, Torsten Wheeler, Andrew, J University College Cork (UCC) Center for Marine Environmental Sciences Bremen (MARUM) Universität Bremen Laboratoire de Planétologie et Géosciences UMR_C 6112 (LPG) Le Mans Université (UM)-Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST) Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ) Université de Lausanne = University of Lausanne (UNIL) 2022-04-05 https://univ-angers.hal.science/hal-04278626 https://univ-angers.hal.science/hal-04278626/document https://univ-angers.hal.science/hal-04278626/file/1-s2.0-S0277379122000944-main.pdf https://doi.org/10.1016/j.quascirev.2022.107463 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2022.107463 hal-04278626 https://univ-angers.hal.science/hal-04278626 https://univ-angers.hal.science/hal-04278626/document https://univ-angers.hal.science/hal-04278626/file/1-s2.0-S0277379122000944-main.pdf doi:10.1016/j.quascirev.2022.107463 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0277-3791 Quaternary Science Reviews https://univ-angers.hal.science/hal-04278626 Quaternary Science Reviews, 2022, 284, pp.107463. ⟨10.1016/j.quascirev.2022.107463⟩ https://www.sciencedirect.com/science/article/pii/S0277379122000944?via%3Dihub Quaternary North-east Atlantic Sedimentology-marine cores Ice-rafted debris Palaeoceanography British-Irish ice sheet (BIIS) [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2022 ftccsdartic https://doi.org/10.1016/j.quascirev.2022.107463 2024-01-20T23:54:25Z Extensive research has been undertaken to elucidate the glacial history of the British Irish Ice Sheet (BIIS)in the NE Atlantic. BRITICE-CHRONO has compiled terrestrial and marine based evidence, to provide anempirical reconstruction of ice sheet expansion and retreat during the Late Pleistocene. Across the Irishmargin, particular focus has been given to seafloor sediments which contain ice-rafted debris (IRD).However, there are few publications on IRD from areas proximal to the maximum extent of the BIIS,which would offer further insights on the behaviour of the ice sheet during (de)glacial events. Previousexploratory surveys of the west Porcupine Bank (wPB) visually identified IRD on the seafloor and thesepresent a new study site to investigate the extent of the BIIS and the course of its icebergs. Moreover,there are uncertainties about the effects of icebergs on the marine life and cold-water corals occupyingthe nearby Porcupine Bank Canyon. Assessing a sediment core containing an IRD analogue for the wPBwould thus, have a dual purpose. In the past however, coring missions of the wPB using traditional coringmethods (i.e. piston and gravity cores) were unsuccessful. Here, we utilized a novel ROV-mountedvibrocoring procedure to capture a 0.75 m IRD-bearing sediment core from the wPB. Then furthernovel analytical methods (computed tomography-based IRD-detection) were used to quantify IRD every0.02 cm to provide the highest resolution record of BIIS related IRD to date. From this, several fluxes ofIRD deposition onto the wPB between 31.6 and 9 ka BP were revealed and corroborated by other publishedrecords from across the NE Atlantic. It was shown that the wPB IRD fluxes occur simultaneouslywith other parts of the margin. The IRD signal also shows that iceberg calving occurred on the wPBduring the Younger Dryas. Grain-size analysis of the core allowed for a reconstruction and interpretationof the palaeoenvironmental conditions during these IRD flux events and shows that BIIS-derived glaciershad a major impact on ... Article in Journal/Newspaper Ice Sheet North East Atlantic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Porcupine Bank ENVELOPE(-13.667,-13.667,53.333,53.333) Quaternary Science Reviews 284 107463 |