Millennial-scale climatic variability between 340 000 and 270 000 years ago in SW Europe: evidence from a NW Iberian margin pollen sequence
We present a new high-resolution marine pollen record from NW Iberian margin sediments (core MD03-2697) covering the interval between 340 000 and 270 000 years ago, a time period centred on Marine Isotope Stage (MIS) 9 and characterized by particular baseline climate states. This study enables the d...
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fttriple:oai:gotriple.eu:WK0Jr8LFRzz4Fj5engKV1 2023-05-15T17:35:14+02:00 Millennial-scale climatic variability between 340 000 and 270 000 years ago in SW Europe: evidence from a NW Iberian margin pollen sequence Desprat, S. Goni, M. F. Sanchez Mcmanus, J. F. Duprat, J. Cortijo, E. 2009-01-01 https://doi.org/10.5194/cp-5-53-2009 https://archimer.ifremer.fr/doc/00218/32917/31401.pdf https://archimer.ifremer.fr/doc/00218/32917/ en eng Copernicus Publications doi:10.5194/cp-5-53-2009 10670/1.81xogw 1814-9324 1814-9332 https://archimer.ifremer.fr/doc/00218/32917/31401.pdf https://archimer.ifremer.fr/doc/00218/32917/ lic_creative-commons other undefined Archimer, archive institutionnelle de l'Ifremer Climate Of The Past (1814-9324) (Copernicus Publications), 2009 , Vol. 5 , N. 1 , P. 53-72 anthro-bio envir Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2009 fttriple https://doi.org/10.5194/cp-5-53-2009 2023-01-22T17:52:08Z We present a new high-resolution marine pollen record from NW Iberian margin sediments (core MD03-2697) covering the interval between 340 000 and 270 000 years ago, a time period centred on Marine Isotope Stage (MIS) 9 and characterized by particular baseline climate states. This study enables the documentation of vegetation changes in the north-western Iberian Peninsula and therefore the terrestrial climatic variability at orbital and in particular at millennial scales during MIS 9, directly on a marine stratigraphy. Suborbital vegetation changes in NW Iberia in response to cool/cold events are detected throughout the studied interval even during MIS 9e ice volume minimum. However, they appear more frequent and of higher amplitude during the 30 000 years following the MIS 9e interglacial period and during the MIS 9a-8 transition, which correspond to intervals of an intermediate to high ice volume and mainly periods of ice growth. Each suborbital cold event detected in NW Iberia has a counterpart in the Southern Iberian margin SST record. High to moderate amplitude cold episodes detected on land and in the ocean appear to be related to changes in deep water circulation and probably to iceberg discharges at least during MIS 9d, the mid-MIS 9c cold event and MIS 9b. This work provides therefore additional evidence of pervasive millennial-scale climatic variability in the North Atlantic borderlands throughout past climatic cycles of the Late Pleistocene, regardless of glacial state. However, ice volume might have an indirect influence on the amplitude of the millennial climatic changes in Southern Europe. Article in Journal/Newspaper North Atlantic Unknown Climate of the Past 5 1 53 72 |
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anthro-bio envir Desprat, S. Goni, M. F. Sanchez Mcmanus, J. F. Duprat, J. Cortijo, E. Millennial-scale climatic variability between 340 000 and 270 000 years ago in SW Europe: evidence from a NW Iberian margin pollen sequence |
topic_facet |
anthro-bio envir |
description |
We present a new high-resolution marine pollen record from NW Iberian margin sediments (core MD03-2697) covering the interval between 340 000 and 270 000 years ago, a time period centred on Marine Isotope Stage (MIS) 9 and characterized by particular baseline climate states. This study enables the documentation of vegetation changes in the north-western Iberian Peninsula and therefore the terrestrial climatic variability at orbital and in particular at millennial scales during MIS 9, directly on a marine stratigraphy. Suborbital vegetation changes in NW Iberia in response to cool/cold events are detected throughout the studied interval even during MIS 9e ice volume minimum. However, they appear more frequent and of higher amplitude during the 30 000 years following the MIS 9e interglacial period and during the MIS 9a-8 transition, which correspond to intervals of an intermediate to high ice volume and mainly periods of ice growth. Each suborbital cold event detected in NW Iberia has a counterpart in the Southern Iberian margin SST record. High to moderate amplitude cold episodes detected on land and in the ocean appear to be related to changes in deep water circulation and probably to iceberg discharges at least during MIS 9d, the mid-MIS 9c cold event and MIS 9b. This work provides therefore additional evidence of pervasive millennial-scale climatic variability in the North Atlantic borderlands throughout past climatic cycles of the Late Pleistocene, regardless of glacial state. However, ice volume might have an indirect influence on the amplitude of the millennial climatic changes in Southern Europe. |
format |
Article in Journal/Newspaper |
author |
Desprat, S. Goni, M. F. Sanchez Mcmanus, J. F. Duprat, J. Cortijo, E. |
author_facet |
Desprat, S. Goni, M. F. Sanchez Mcmanus, J. F. Duprat, J. Cortijo, E. |
author_sort |
Desprat, S. |
title |
Millennial-scale climatic variability between 340 000 and 270 000 years ago in SW Europe: evidence from a NW Iberian margin pollen sequence |
title_short |
Millennial-scale climatic variability between 340 000 and 270 000 years ago in SW Europe: evidence from a NW Iberian margin pollen sequence |
title_full |
Millennial-scale climatic variability between 340 000 and 270 000 years ago in SW Europe: evidence from a NW Iberian margin pollen sequence |
title_fullStr |
Millennial-scale climatic variability between 340 000 and 270 000 years ago in SW Europe: evidence from a NW Iberian margin pollen sequence |
title_full_unstemmed |
Millennial-scale climatic variability between 340 000 and 270 000 years ago in SW Europe: evidence from a NW Iberian margin pollen sequence |
title_sort |
millennial-scale climatic variability between 340 000 and 270 000 years ago in sw europe: evidence from a nw iberian margin pollen sequence |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doi.org/10.5194/cp-5-53-2009 https://archimer.ifremer.fr/doc/00218/32917/31401.pdf https://archimer.ifremer.fr/doc/00218/32917/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Archimer, archive institutionnelle de l'Ifremer Climate Of The Past (1814-9324) (Copernicus Publications), 2009 , Vol. 5 , N. 1 , P. 53-72 |
op_relation |
doi:10.5194/cp-5-53-2009 10670/1.81xogw 1814-9324 1814-9332 https://archimer.ifremer.fr/doc/00218/32917/31401.pdf https://archimer.ifremer.fr/doc/00218/32917/ |
op_rights |
lic_creative-commons other undefined |
op_doi |
https://doi.org/10.5194/cp-5-53-2009 |
container_title |
Climate of the Past |
container_volume |
5 |
container_issue |
1 |
container_start_page |
53 |
op_container_end_page |
72 |
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1766134318907785216 |