Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem

Autor: Laura Sanna, Emilie Capron, Jon Woodhead, Jo De Waele, John Hellstrom, Andrea Columbu, Petra Bajo, Russell N. Drysdale
Přispěvatelé: Columbu, Andrea, Drysdale, Russell, Capron, Emilie, Woodhead, Jon, De Waele, Jo, Sanna, Laura, Hellstrom, John, Bajo, Petra, Alma Mater Studiorum Università di Bologna [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)-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), 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, Université de Bologne, Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Archeology
010504 meteorology & atmospheric sciences
[SDE.MCG]Environmental Sciences/Global Changes
Speleothem
Stalagmite
Ice-core chronology
010502 geochemistry & geophysics
01 natural sciences
Proxy (climate)
Ice core
Glacial period
Stadial
U/Th dating
Ecology
Evolution
Behavior and Systematics
0105 earth and related environmental sciences
U-Th dating
Global and Planetary Change
geography
geography.geographical_feature_category
[SDE.IE]Environmental Sciences/Environmental Engineering
Climate oscillation
Geology
[SHS.GEO]Humanities and Social Sciences/Geography
Greenland interstadials/stadials
[SDE.ES]Environmental Sciences/Environmental and Society
Speleothems
Speleothems Greenland interstadials/stadials Ice-core chronology U-Th dating
13. Climate action
Climatology
Physical geography
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Chronology
Zdroj: Quaternary Science Reviews
Quaternary Science Reviews, 2017, 169, pp. 391-397
Quaternary Science Reviews, Elsevier, 2017, 169, pp. 391-397
Quaternary science reviews 169 (2017): 391–397. doi:10.1016/j.quascirev.2017.05.007
info:cnr-pdr/source/autori:Andrea Columbu, Russell Drysdale, Emilie Capron, Jon Woodhead, Jo De Waele, Laura Sanna, John Hellstrom, Petra Bajo/titolo:Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem/doi:10.1016%2Fj.quascirev.2017.05.007/rivista:Quaternary science reviews/anno:2017/pagina_da:391/pagina_a:397/intervallo_pagine:391–397/volume:169
ISSN: 0277-3791
DOI: 10.1016/j.quascirev.2017.05.007
Popis: 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.
Databáze: OpenAIRE
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