A speleothem record of glacial (25–11.6 kyr BP) rapid climatic changes from northern Iberian Peninsula
14 páginas, 7 figuras, 1 tabla.-- El pDF del artículo es su versión post-print. Low and high frequency climatic fluctuations in northern Iberian Peninsula during the last glacial maximum (LGM) and deglaciation are documented in a stalagmite using δ18O and δ13C and hydrologically sensitive trace meta...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | http://hdl.handle.net/10261/35083 https://doi.org/10.1016/j.gloplacha.2009.10.002 |
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ftcsic:oai:digital.csic.es:10261/35083 2024-02-11T10:04:28+01:00 A speleothem record of glacial (25–11.6 kyr BP) rapid climatic changes from northern Iberian Peninsula Moreno Caballud, Ana Stoll, Heather Jiménez-Sánchez, Montserrat Cacho, Isabel Valero-Garcés, Blas L. Ito, Emi Edwards, R. Lawrence 2010-04 http://hdl.handle.net/10261/35083 https://doi.org/10.1016/j.gloplacha.2009.10.002 en eng Elsevier http://dx.doi.org/10.1016/j.gloplacha.2009.10.002 Journal of Quaternary Science 71(3-4): 218-231 (2010) 0267-8179 http://hdl.handle.net/10261/35083 doi:10.1016/j.gloplacha.2009.10.002 open Speleothems Northern Iberian Peninsula Marine Isotope Stage 2 Last deglaciation Stable isotopes Trace elements Rapid climate change artículo http://purl.org/coar/resource_type/c_6501 2010 ftcsic https://doi.org/10.1016/j.gloplacha.2009.10.002 2024-01-16T09:31:27Z 14 páginas, 7 figuras, 1 tabla.-- El pDF del artículo es su versión post-print. Low and high frequency climatic fluctuations in northern Iberian Peninsula during the last glacial maximum (LGM) and deglaciation are documented in a stalagmite using δ18O and δ13C and hydrologically sensitive trace metal ratios Mg/Ca and Ba/Ca. U/Th dating indicates speleothem growth commenced at 25 kyr BP (Present = year 1950) and extended to 11.6 kyr BP making this one of few European speleothem growing during the last glacial period. Rapid climatic fluctuations as Heinrich event 2 (H2) and Greenland Interstadial (GI-) 2 are well characterized in this record by more arid and cold conditions and by more humid conditions, respectively. Speleothem growth ceased from 18.2 to 15.4 kyr BP (the so-called Mystery Interval) likely reflecting the driest and potentially coldest conditions of this record, coincident with the 2 kyr duration shutdown of the North Atlantic Meridional Overturning Circulation (MOC). A major gradual increase in humidity and possibly in temperature occurred from 15.5 to 13.5 kyr BP, beginning in the Bølling and culminating in the Allerød period. This gradual humidity change contrasts with more abrupt humidity shifts in the Mediterranean, suggesting a different climate threshold for Mediterranean vs. Atlantic margin precipitation. This project was supported by a grant from the Spanish Ministry of Education and Science (CAVECAL:MEC CGL2006-13327-Co4-02 toHMS) and GRACCIEConsolider (CSD2007-00067). We acknowledge fellowships to A. Moreno from the European Comission's Sixth Framework Program (Marie Curie Fellowship 021673 IBERABRUPT) and from the Spanish Ministry of Science (“Ramón y Cajal” program) and H. Stoll from the Spanish Ministry of Science cofunded by the European Social Fund and an instrumentation grant to H. Stoll from the Asturian Comission of Science and Technology (FICYT) cofinanced by the European Regional Development Funds. Peer reviewed Article in Journal/Newspaper Greenland North Atlantic Digital.CSIC (Spanish National Research Council) Greenland Moreno ENVELOPE(-62.300,-62.300,-64.083,-64.083) Global and Planetary Change 71 3-4 218 231 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Speleothems Northern Iberian Peninsula Marine Isotope Stage 2 Last deglaciation Stable isotopes Trace elements Rapid climate change |
spellingShingle |
Speleothems Northern Iberian Peninsula Marine Isotope Stage 2 Last deglaciation Stable isotopes Trace elements Rapid climate change Moreno Caballud, Ana Stoll, Heather Jiménez-Sánchez, Montserrat Cacho, Isabel Valero-Garcés, Blas L. Ito, Emi Edwards, R. Lawrence A speleothem record of glacial (25–11.6 kyr BP) rapid climatic changes from northern Iberian Peninsula |
topic_facet |
Speleothems Northern Iberian Peninsula Marine Isotope Stage 2 Last deglaciation Stable isotopes Trace elements Rapid climate change |
description |
14 páginas, 7 figuras, 1 tabla.-- El pDF del artículo es su versión post-print. Low and high frequency climatic fluctuations in northern Iberian Peninsula during the last glacial maximum (LGM) and deglaciation are documented in a stalagmite using δ18O and δ13C and hydrologically sensitive trace metal ratios Mg/Ca and Ba/Ca. U/Th dating indicates speleothem growth commenced at 25 kyr BP (Present = year 1950) and extended to 11.6 kyr BP making this one of few European speleothem growing during the last glacial period. Rapid climatic fluctuations as Heinrich event 2 (H2) and Greenland Interstadial (GI-) 2 are well characterized in this record by more arid and cold conditions and by more humid conditions, respectively. Speleothem growth ceased from 18.2 to 15.4 kyr BP (the so-called Mystery Interval) likely reflecting the driest and potentially coldest conditions of this record, coincident with the 2 kyr duration shutdown of the North Atlantic Meridional Overturning Circulation (MOC). A major gradual increase in humidity and possibly in temperature occurred from 15.5 to 13.5 kyr BP, beginning in the Bølling and culminating in the Allerød period. This gradual humidity change contrasts with more abrupt humidity shifts in the Mediterranean, suggesting a different climate threshold for Mediterranean vs. Atlantic margin precipitation. This project was supported by a grant from the Spanish Ministry of Education and Science (CAVECAL:MEC CGL2006-13327-Co4-02 toHMS) and GRACCIEConsolider (CSD2007-00067). We acknowledge fellowships to A. Moreno from the European Comission's Sixth Framework Program (Marie Curie Fellowship 021673 IBERABRUPT) and from the Spanish Ministry of Science (“Ramón y Cajal” program) and H. Stoll from the Spanish Ministry of Science cofunded by the European Social Fund and an instrumentation grant to H. Stoll from the Asturian Comission of Science and Technology (FICYT) cofinanced by the European Regional Development Funds. Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Moreno Caballud, Ana Stoll, Heather Jiménez-Sánchez, Montserrat Cacho, Isabel Valero-Garcés, Blas L. Ito, Emi Edwards, R. Lawrence |
author_facet |
Moreno Caballud, Ana Stoll, Heather Jiménez-Sánchez, Montserrat Cacho, Isabel Valero-Garcés, Blas L. Ito, Emi Edwards, R. Lawrence |
author_sort |
Moreno Caballud, Ana |
title |
A speleothem record of glacial (25–11.6 kyr BP) rapid climatic changes from northern Iberian Peninsula |
title_short |
A speleothem record of glacial (25–11.6 kyr BP) rapid climatic changes from northern Iberian Peninsula |
title_full |
A speleothem record of glacial (25–11.6 kyr BP) rapid climatic changes from northern Iberian Peninsula |
title_fullStr |
A speleothem record of glacial (25–11.6 kyr BP) rapid climatic changes from northern Iberian Peninsula |
title_full_unstemmed |
A speleothem record of glacial (25–11.6 kyr BP) rapid climatic changes from northern Iberian Peninsula |
title_sort |
speleothem record of glacial (25–11.6 kyr bp) rapid climatic changes from northern iberian peninsula |
publisher |
Elsevier |
publishDate |
2010 |
url |
http://hdl.handle.net/10261/35083 https://doi.org/10.1016/j.gloplacha.2009.10.002 |
long_lat |
ENVELOPE(-62.300,-62.300,-64.083,-64.083) |
geographic |
Greenland Moreno |
geographic_facet |
Greenland Moreno |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_relation |
http://dx.doi.org/10.1016/j.gloplacha.2009.10.002 Journal of Quaternary Science 71(3-4): 218-231 (2010) 0267-8179 http://hdl.handle.net/10261/35083 doi:10.1016/j.gloplacha.2009.10.002 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.gloplacha.2009.10.002 |
container_title |
Global and Planetary Change |
container_volume |
71 |
container_issue |
3-4 |
container_start_page |
218 |
op_container_end_page |
231 |
_version_ |
1790601067110596608 |