Millennial-scale climate variability in the subpolar North Atlantic Ocean during the late Pliocene
International audience Large-amplitude millennial-scale climate oscillations have been identified in late Pleistocene climate archives from around the world. These oscillations appear to be of larger amplitude during times of enlarged ice sheets. This observation suggests the existence of a relation...
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Online Access: | https://hal.archives-ouvertes.fr/hal-01668006 https://hal.archives-ouvertes.fr/hal-01668006/document https://hal.archives-ouvertes.fr/hal-01668006/file/Bolton%20et%20al.,%202010%20paleo1313.pdf https://doi.org/10.1029/2010PA001951 |
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ftccsdartic:oai:HAL:hal-01668006v1 2023-05-15T17:31:06+02:00 Millennial-scale climate variability in the subpolar North Atlantic Ocean during the late Pliocene Bolton, Clara Wilson, Paul A. Bailey, Ian Friedrich, Oliver Beer, Christopher J. Becker, Julia Baranwal, Soma Schiebel, Ralf National Oceanography Centre Southampton (NOC) University of Southampton School of Earth and Ocean Sciences Cardiff Cardiff University Bio-Indicateurs Actuels et Fossiles (BIAF) Université d'Angers (UA) 2010 https://hal.archives-ouvertes.fr/hal-01668006 https://hal.archives-ouvertes.fr/hal-01668006/document https://hal.archives-ouvertes.fr/hal-01668006/file/Bolton%20et%20al.,%202010%20paleo1313.pdf https://doi.org/10.1029/2010PA001951 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2010PA001951 hal-01668006 https://hal.archives-ouvertes.fr/hal-01668006 https://hal.archives-ouvertes.fr/hal-01668006/document https://hal.archives-ouvertes.fr/hal-01668006/file/Bolton%20et%20al.,%202010%20paleo1313.pdf doi:10.1029/2010PA001951 info:eu-repo/semantics/OpenAccess ISSN: 0883-8305 Paleoceanography https://hal.archives-ouvertes.fr/hal-01668006 Paleoceanography, American Geophysical Union, 2010, 25 (4), pp.PA4218. ⟨10.1029/2010PA001951⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2010 ftccsdartic https://doi.org/10.1029/2010PA001951 2021-11-13T23:38:54Z International audience Large-amplitude millennial-scale climate oscillations have been identified in late Pleistocene climate archives from around the world. These oscillations appear to be of larger amplitude during times of enlarged ice sheets. This observation suggests the existence of a relationship between large-amplitude millennial variations in climate and extreme glacial conditions and therefore that the emergence of millennial-scale climate variability may be linked to the Pliocene intensification of northern hemisphere glaciation (iNHG). Here we test this hypothesis using new late Pliocene high-resolution (∼400 year) records of ice-rafted debris deposition and stable isotopes in planktic foraminiferal calcite (Globigerinoides ruber) generated from Integrated Ocean Drilling Program Site U1313 in the subpolar North Atlantic (a reoccupation of the classic Deep Sea Drilling Project Site 607). Our records span marine oxygen isotope stages (MIS) 103–95 (∼2600 to 2400 ka), the first interval during iNHG (∼3.5 to 2.5 Ma) in which large-amplitude glacial-interglacial cycles and inferred sea level changes occur. Our records reveal small-amplitude variability at periodicities of ∼1.8 to 6.2 kyr that prevails regardless of (inter)glacial state with no significant amplification during the glacials MIS 100, 98, and 96. These findings imply that the threshold for the amplification of such variability to the proportions seen in the marine archive of the last glacial was not crossed during the late Pliocene and, in view of all available data, likely not until the Mid-Pleistocene Transition. Article in Journal/Newspaper North Atlantic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Paleoceanography 25 4 n/a n/a |
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Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
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[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Bolton, Clara Wilson, Paul A. Bailey, Ian Friedrich, Oliver Beer, Christopher J. Becker, Julia Baranwal, Soma Schiebel, Ralf Millennial-scale climate variability in the subpolar North Atlantic Ocean during the late Pliocene |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Large-amplitude millennial-scale climate oscillations have been identified in late Pleistocene climate archives from around the world. These oscillations appear to be of larger amplitude during times of enlarged ice sheets. This observation suggests the existence of a relationship between large-amplitude millennial variations in climate and extreme glacial conditions and therefore that the emergence of millennial-scale climate variability may be linked to the Pliocene intensification of northern hemisphere glaciation (iNHG). Here we test this hypothesis using new late Pliocene high-resolution (∼400 year) records of ice-rafted debris deposition and stable isotopes in planktic foraminiferal calcite (Globigerinoides ruber) generated from Integrated Ocean Drilling Program Site U1313 in the subpolar North Atlantic (a reoccupation of the classic Deep Sea Drilling Project Site 607). Our records span marine oxygen isotope stages (MIS) 103–95 (∼2600 to 2400 ka), the first interval during iNHG (∼3.5 to 2.5 Ma) in which large-amplitude glacial-interglacial cycles and inferred sea level changes occur. Our records reveal small-amplitude variability at periodicities of ∼1.8 to 6.2 kyr that prevails regardless of (inter)glacial state with no significant amplification during the glacials MIS 100, 98, and 96. These findings imply that the threshold for the amplification of such variability to the proportions seen in the marine archive of the last glacial was not crossed during the late Pliocene and, in view of all available data, likely not until the Mid-Pleistocene Transition. |
author2 |
National Oceanography Centre Southampton (NOC) University of Southampton School of Earth and Ocean Sciences Cardiff Cardiff University Bio-Indicateurs Actuels et Fossiles (BIAF) Université d'Angers (UA) |
format |
Article in Journal/Newspaper |
author |
Bolton, Clara Wilson, Paul A. Bailey, Ian Friedrich, Oliver Beer, Christopher J. Becker, Julia Baranwal, Soma Schiebel, Ralf |
author_facet |
Bolton, Clara Wilson, Paul A. Bailey, Ian Friedrich, Oliver Beer, Christopher J. Becker, Julia Baranwal, Soma Schiebel, Ralf |
author_sort |
Bolton, Clara |
title |
Millennial-scale climate variability in the subpolar North Atlantic Ocean during the late Pliocene |
title_short |
Millennial-scale climate variability in the subpolar North Atlantic Ocean during the late Pliocene |
title_full |
Millennial-scale climate variability in the subpolar North Atlantic Ocean during the late Pliocene |
title_fullStr |
Millennial-scale climate variability in the subpolar North Atlantic Ocean during the late Pliocene |
title_full_unstemmed |
Millennial-scale climate variability in the subpolar North Atlantic Ocean during the late Pliocene |
title_sort |
millennial-scale climate variability in the subpolar north atlantic ocean during the late pliocene |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.archives-ouvertes.fr/hal-01668006 https://hal.archives-ouvertes.fr/hal-01668006/document https://hal.archives-ouvertes.fr/hal-01668006/file/Bolton%20et%20al.,%202010%20paleo1313.pdf https://doi.org/10.1029/2010PA001951 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0883-8305 Paleoceanography https://hal.archives-ouvertes.fr/hal-01668006 Paleoceanography, American Geophysical Union, 2010, 25 (4), pp.PA4218. ⟨10.1029/2010PA001951⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2010PA001951 hal-01668006 https://hal.archives-ouvertes.fr/hal-01668006 https://hal.archives-ouvertes.fr/hal-01668006/document https://hal.archives-ouvertes.fr/hal-01668006/file/Bolton%20et%20al.,%202010%20paleo1313.pdf doi:10.1029/2010PA001951 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2010PA001951 |
container_title |
Paleoceanography |
container_volume |
25 |
container_issue |
4 |
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n/a |
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n/a |
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1766128424025325568 |