Millennial-scale iceberg discharges in the Irminger Basin during the Last Glacial Period: Relationship with the Heinrich events and environmental settings
International audience High-resolution records of coarse lithic content and oxygen isotope have been obtained in a piston core from the Irminger Basin. The last glacial period is characterized by numerous periods of increased iceberg discharges originating partly from Iceland and corresponding to mi...
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Format: | Article in Journal/Newspaper |
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Online Access: | https://hal.science/hal-02497216 https://hal.science/hal-02497216/document https://hal.science/hal-02497216/file/98PA01792.pdf https://doi.org/10.1029/98PA01792 |
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ftunivnantes:oai:HAL:hal-02497216v1 2023-05-15T16:41:59+02:00 Millennial-scale iceberg discharges in the Irminger Basin during the Last Glacial Period: Relationship with the Heinrich events and environmental settings Elliot, Mary Labeyrie, Laurent Bond, Gerard Cortijo, Elsa Turon, Jean-Louis Tisnerat, Nadine Duplessy, Jean-Claude Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Paléocéanographie (PALEOCEAN) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Lamont-Doherty Earth Observatory (LDEO) Columbia University New York Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Géochrononologie Traceurs Archéométrie (GEOTRAC) 1998-10 https://hal.science/hal-02497216 https://hal.science/hal-02497216/document https://hal.science/hal-02497216/file/98PA01792.pdf https://doi.org/10.1029/98PA01792 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/98PA01792 hal-02497216 https://hal.science/hal-02497216 https://hal.science/hal-02497216/document https://hal.science/hal-02497216/file/98PA01792.pdf doi:10.1029/98PA01792 info:eu-repo/semantics/OpenAccess ISSN: 0883-8305 Paleoceanography https://hal.science/hal-02497216 Paleoceanography, 1998, 13 (5), pp.433-446. ⟨10.1029/98PA01792⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 1998 ftunivnantes https://doi.org/10.1029/98PA01792 2023-02-08T05:21:21Z International audience High-resolution records of coarse lithic content and oxygen isotope have been obtained in a piston core from the Irminger Basin. The last glacial period is characterized by numerous periods of increased iceberg discharges originating partly from Iceland and corresponding to millennial-scale instabilities of the coastal ice sheets and ice shelves in the Nordic area. A comparison with midlatitude sediment cores shows that ice-rafted material corresponding to the Heinrich events was deposited synchronously from 40 ø to 60øN. There are thus two oscillating systems: every 5-10 kyr massive iceberg armadas are released from large continental ice caps, whereas more frequent instabilities of the coastal ice sheets in the high latitude regions occur every 1.2-3.8 kyr. At the time of the Heinrich events the synchroneity of the response from all the northern hemisphere ice sheets attests the existence of strong interactions between the two systems. Article in Journal/Newspaper Ice Shelves Iceland Université de Nantes: HAL-UNIV-NANTES Irminger Basin ENVELOPE(-36.000,-36.000,61.000,61.000) Paleoceanography 13 5 433 446 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Elliot, Mary Labeyrie, Laurent Bond, Gerard Cortijo, Elsa Turon, Jean-Louis Tisnerat, Nadine Duplessy, Jean-Claude Millennial-scale iceberg discharges in the Irminger Basin during the Last Glacial Period: Relationship with the Heinrich events and environmental settings |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience High-resolution records of coarse lithic content and oxygen isotope have been obtained in a piston core from the Irminger Basin. The last glacial period is characterized by numerous periods of increased iceberg discharges originating partly from Iceland and corresponding to millennial-scale instabilities of the coastal ice sheets and ice shelves in the Nordic area. A comparison with midlatitude sediment cores shows that ice-rafted material corresponding to the Heinrich events was deposited synchronously from 40 ø to 60øN. There are thus two oscillating systems: every 5-10 kyr massive iceberg armadas are released from large continental ice caps, whereas more frequent instabilities of the coastal ice sheets in the high latitude regions occur every 1.2-3.8 kyr. At the time of the Heinrich events the synchroneity of the response from all the northern hemisphere ice sheets attests the existence of strong interactions between the two systems. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Paléocéanographie (PALEOCEAN) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Lamont-Doherty Earth Observatory (LDEO) Columbia University New York Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Géochrononologie Traceurs Archéométrie (GEOTRAC) |
format |
Article in Journal/Newspaper |
author |
Elliot, Mary Labeyrie, Laurent Bond, Gerard Cortijo, Elsa Turon, Jean-Louis Tisnerat, Nadine Duplessy, Jean-Claude |
author_facet |
Elliot, Mary Labeyrie, Laurent Bond, Gerard Cortijo, Elsa Turon, Jean-Louis Tisnerat, Nadine Duplessy, Jean-Claude |
author_sort |
Elliot, Mary |
title |
Millennial-scale iceberg discharges in the Irminger Basin during the Last Glacial Period: Relationship with the Heinrich events and environmental settings |
title_short |
Millennial-scale iceberg discharges in the Irminger Basin during the Last Glacial Period: Relationship with the Heinrich events and environmental settings |
title_full |
Millennial-scale iceberg discharges in the Irminger Basin during the Last Glacial Period: Relationship with the Heinrich events and environmental settings |
title_fullStr |
Millennial-scale iceberg discharges in the Irminger Basin during the Last Glacial Period: Relationship with the Heinrich events and environmental settings |
title_full_unstemmed |
Millennial-scale iceberg discharges in the Irminger Basin during the Last Glacial Period: Relationship with the Heinrich events and environmental settings |
title_sort |
millennial-scale iceberg discharges in the irminger basin during the last glacial period: relationship with the heinrich events and environmental settings |
publisher |
HAL CCSD |
publishDate |
1998 |
url |
https://hal.science/hal-02497216 https://hal.science/hal-02497216/document https://hal.science/hal-02497216/file/98PA01792.pdf https://doi.org/10.1029/98PA01792 |
long_lat |
ENVELOPE(-36.000,-36.000,61.000,61.000) |
geographic |
Irminger Basin |
geographic_facet |
Irminger Basin |
genre |
Ice Shelves Iceland |
genre_facet |
Ice Shelves Iceland |
op_source |
ISSN: 0883-8305 Paleoceanography https://hal.science/hal-02497216 Paleoceanography, 1998, 13 (5), pp.433-446. ⟨10.1029/98PA01792⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/98PA01792 hal-02497216 https://hal.science/hal-02497216 https://hal.science/hal-02497216/document https://hal.science/hal-02497216/file/98PA01792.pdf doi:10.1029/98PA01792 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/98PA01792 |
container_title |
Paleoceanography |
container_volume |
13 |
container_issue |
5 |
container_start_page |
433 |
op_container_end_page |
446 |
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1766032446590025728 |