Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem
International audience Chemical and physical proxy data from a precisely dated early last glacial (similar to 113-110 ka, MIS5d) Sardinian stalagmite reveal a sub-millennial-scale, cool-dry climate event centered at 112.0 (+0.52)/(-0.59) ka, followed by a rapid return to warm-wet conditions at 111.7...
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ftunigrenoble:oai:HAL:hal-02009162v1 2024-05-12T08:04:10+00:00 Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem Columbu, Andrea Drysdale, Russell Capron, Emilie Woodhead, Jon de Waele, Jo Sanna, Laura Hellstrom, Jo Bajo, Petra Alma Mater Studiorum Università di Bologna = University of Bologna (UNIBO) University of Melbourne Environnements, Dynamiques et Territoires de Montagne (EDYTEM) Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) School of Earth Sciences Melbourne Faculty of Science Melbourne University of Melbourne-University of Melbourne Istituto Italiano di Speleologia Department of Resource Management and Geography 2017-08 https://hal.science/hal-02009162 en eng HAL CCSD Elsevier hal-02009162 https://hal.science/hal-02009162 ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.science/hal-02009162 Quaternary Science Reviews, 2017, 169, pp. 391-397 Speleothems Greenland interstadials/stadials Ice-core chronology U-Th dating [SDE.MCG]Environmental Sciences/Global Changes [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDE.ES]Environmental Sciences/Environment and Society [SHS.GEO]Humanities and Social Sciences/Geography info:eu-repo/semantics/article Journal articles 2017 ftunigrenoble 2024-04-18T03:48:12Z International audience Chemical and physical proxy data from a precisely dated early last glacial (similar to 113-110 ka, MIS5d) Sardinian stalagmite reveal a sub-millennial-scale, cool-dry climate event centered at 112.0 (+0.52)/(-0.59) ka, followed by a rapid return to warm-wet conditions at 111.76 (+0-43)/(-0.45) ka. Comparison with regional speleothem records and the palaeotemperature proxy record from the NGRIP ice core (Greenland) suggests that this event corresponds to Greenland Interstadial (GI) 25b and 25a, an intra-interstadial climate oscillation within GI-25, according to the recent Greenland stratigraphic framework. The speleothem age is in reasonable agreement (within 0.8 kyr) with that of the corresponding event in Greenland based on the GICC05modelext ice chronology but is older by about 3.7 kyr than the Greenland age based on the AICC2012 chronology. (C) 2017 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Greenland ice core NGRIP Université Grenoble Alpes: HAL Greenland |
institution |
Open Polar |
collection |
Université Grenoble Alpes: HAL |
op_collection_id |
ftunigrenoble |
language |
English |
topic |
Speleothems Greenland interstadials/stadials Ice-core chronology U-Th dating [SDE.MCG]Environmental Sciences/Global Changes [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDE.ES]Environmental Sciences/Environment and Society [SHS.GEO]Humanities and Social Sciences/Geography |
spellingShingle |
Speleothems Greenland interstadials/stadials Ice-core chronology U-Th dating [SDE.MCG]Environmental Sciences/Global Changes [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDE.ES]Environmental Sciences/Environment and Society [SHS.GEO]Humanities and Social Sciences/Geography Columbu, Andrea Drysdale, Russell Capron, Emilie Woodhead, Jon de Waele, Jo Sanna, Laura Hellstrom, Jo Bajo, Petra Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem |
topic_facet |
Speleothems Greenland interstadials/stadials Ice-core chronology U-Th dating [SDE.MCG]Environmental Sciences/Global Changes [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.IE]Environmental Sciences/Environmental Engineering [SDE.ES]Environmental Sciences/Environment and Society [SHS.GEO]Humanities and Social Sciences/Geography |
description |
International audience Chemical and physical proxy data from a precisely dated early last glacial (similar to 113-110 ka, MIS5d) Sardinian stalagmite reveal a sub-millennial-scale, cool-dry climate event centered at 112.0 (+0.52)/(-0.59) ka, followed by a rapid return to warm-wet conditions at 111.76 (+0-43)/(-0.45) ka. Comparison with regional speleothem records and the palaeotemperature proxy record from the NGRIP ice core (Greenland) suggests that this event corresponds to Greenland Interstadial (GI) 25b and 25a, an intra-interstadial climate oscillation within GI-25, according to the recent Greenland stratigraphic framework. The speleothem age is in reasonable agreement (within 0.8 kyr) with that of the corresponding event in Greenland based on the GICC05modelext ice chronology but is older by about 3.7 kyr than the Greenland age based on the AICC2012 chronology. (C) 2017 Elsevier Ltd. All rights reserved. |
author2 |
Alma Mater Studiorum Università di Bologna = University of Bologna (UNIBO) University of Melbourne Environnements, Dynamiques et Territoires de Montagne (EDYTEM) Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) School of Earth Sciences Melbourne Faculty of Science Melbourne University of Melbourne-University of Melbourne Istituto Italiano di Speleologia Department of Resource Management and Geography |
format |
Article in Journal/Newspaper |
author |
Columbu, Andrea Drysdale, Russell Capron, Emilie Woodhead, Jon de Waele, Jo Sanna, Laura Hellstrom, Jo Bajo, Petra |
author_facet |
Columbu, Andrea Drysdale, Russell Capron, Emilie Woodhead, Jon de Waele, Jo Sanna, Laura Hellstrom, Jo Bajo, Petra |
author_sort |
Columbu, Andrea |
title |
Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem |
title_short |
Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem |
title_full |
Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem |
title_fullStr |
Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem |
title_full_unstemmed |
Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem |
title_sort |
early last glacial intra-interstadial climate variability recorded in a sardinian speleothem |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.science/hal-02009162 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland ice core NGRIP |
genre_facet |
Greenland ice core NGRIP |
op_source |
ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.science/hal-02009162 Quaternary Science Reviews, 2017, 169, pp. 391-397 |
op_relation |
hal-02009162 https://hal.science/hal-02009162 |
_version_ |
1798846333299195904 |