Deglaciation in the central Pyrenees during the PleistoceneeHolocene transition: Timing and geomorphological significance

In this study, we document deglaciation in a sector of the southernecentral Pyrenees (the Panticosa massif and the upper Gállego and Ossau valleys) using cosmic-ray exposure (CRE) dating methods, which were applied to samples from high altitude polished rock steps and rock glacier boulders. The obta...

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Detalles Bibliográficos
Autores: Palacios Estremera, David, García Ruiz, José M., De Andrés de Pablo, Nuria, Schimmelpfennig, Irene, Campos, Néstor, Léanni, Laëtitia, ASTER Team
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/97066
Acceso en línea:https://hdl.handle.net/20.500.14352/97066
Access Level:acceso abierto
Palabra clave:911.2
Deglaciation
Rock glacier
Surface exposure dating
In situ cosmogenic chlorine-36
In situ cosmogenic beryllium-10
Oldest Dryas
Younger Dryas
Holocene
Pyrenees
Spain
Geografía física
2505.07 Geografía Física
2506.07 Geomorfología
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spelling Deglaciation in the central Pyrenees during the PleistoceneeHolocene transition: Timing and geomorphological significancePalacios Estremera, DavidGarcía Ruiz, José M.De Andrés de Pablo, NuriaSchimmelpfennig, IreneCampos, NéstorLéanni, LaëtitiaASTER Team911.2DeglaciationRock glacierSurface exposure datingIn situ cosmogenic chlorine-36In situ cosmogenic beryllium-10Oldest DryasYounger DryasHolocenePyreneesSpainGeografía física2505.07 Geografía Física2506.07 GeomorfologíaIn this study, we document deglaciation in a sector of the southernecentral Pyrenees (the Panticosa massif and the upper Gállego and Ossau valleys) using cosmic-ray exposure (CRE) dating methods, which were applied to samples from high altitude polished rock steps and rock glacier boulders. The obtained CRE dates show a coherent spatial distribution and confirm results previously obtained in this study area, thus demonstrating the reliability and robustness of the method. The results of analyses based on two distinct isotopes (10Be and 36Cl) are consistent, although the error is higher for results based on the 36Cl isotope. The study provides evidence for ice extent in the High Gáallego Valley during the Oldest Dryas, with glacial advance until the bottom of the valleys, although the main glacier tongues remained disconnected from each other. During this period, the extent of glacier advance was directly related to the elevation of the associated summits. The Younger Dryas glaciers were constrained to cirques or very short ice tongues, and dating of the polished rock steps indicates that the ice masses were present until the first millennium of the Holocene. The Brazato rock glacier developed at the beginning of the Holocene and remained active until the Holocene Thermal Optimum, because of the protective effect of large masses of blocks and boulders.ElsevierUniversidad Complutense de Madrid20172017-01-0120172017-01-01journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/97066reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)InglésengMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 CRYOCRISIS CGL2012- 35858Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 ESPAS CGL2015-65569-RMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 MOUNTAIN WARMING CGL2015-65813-RNot available Not available Not availableGobierno de Aragón http://dx.doi.org/10.13039/501100010067 Not available Not availableopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/970662026-06-02T12:44:21Z
dc.title.none.fl_str_mv Deglaciation in the central Pyrenees during the PleistoceneeHolocene transition: Timing and geomorphological significance
title Deglaciation in the central Pyrenees during the PleistoceneeHolocene transition: Timing and geomorphological significance
spellingShingle Deglaciation in the central Pyrenees during the PleistoceneeHolocene transition: Timing and geomorphological significance
Palacios Estremera, David
911.2
Deglaciation
Rock glacier
Surface exposure dating
In situ cosmogenic chlorine-36
In situ cosmogenic beryllium-10
Oldest Dryas
Younger Dryas
Holocene
Pyrenees
Spain
Geografía física
2505.07 Geografía Física
2506.07 Geomorfología
title_short Deglaciation in the central Pyrenees during the PleistoceneeHolocene transition: Timing and geomorphological significance
title_full Deglaciation in the central Pyrenees during the PleistoceneeHolocene transition: Timing and geomorphological significance
title_fullStr Deglaciation in the central Pyrenees during the PleistoceneeHolocene transition: Timing and geomorphological significance
title_full_unstemmed Deglaciation in the central Pyrenees during the PleistoceneeHolocene transition: Timing and geomorphological significance
title_sort Deglaciation in the central Pyrenees during the PleistoceneeHolocene transition: Timing and geomorphological significance
dc.creator.none.fl_str_mv Palacios Estremera, David
García Ruiz, José M.
De Andrés de Pablo, Nuria
Schimmelpfennig, Irene
Campos, Néstor
Léanni, Laëtitia
ASTER Team
author Palacios Estremera, David
author_facet Palacios Estremera, David
García Ruiz, José M.
De Andrés de Pablo, Nuria
Schimmelpfennig, Irene
Campos, Néstor
Léanni, Laëtitia
ASTER Team
author_role author
author2 García Ruiz, José M.
De Andrés de Pablo, Nuria
Schimmelpfennig, Irene
Campos, Néstor
Léanni, Laëtitia
ASTER Team
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 911.2
Deglaciation
Rock glacier
Surface exposure dating
In situ cosmogenic chlorine-36
In situ cosmogenic beryllium-10
Oldest Dryas
Younger Dryas
Holocene
Pyrenees
Spain
Geografía física
2505.07 Geografía Física
2506.07 Geomorfología
topic 911.2
Deglaciation
Rock glacier
Surface exposure dating
In situ cosmogenic chlorine-36
In situ cosmogenic beryllium-10
Oldest Dryas
Younger Dryas
Holocene
Pyrenees
Spain
Geografía física
2505.07 Geografía Física
2506.07 Geomorfología
description In this study, we document deglaciation in a sector of the southernecentral Pyrenees (the Panticosa massif and the upper Gállego and Ossau valleys) using cosmic-ray exposure (CRE) dating methods, which were applied to samples from high altitude polished rock steps and rock glacier boulders. The obtained CRE dates show a coherent spatial distribution and confirm results previously obtained in this study area, thus demonstrating the reliability and robustness of the method. The results of analyses based on two distinct isotopes (10Be and 36Cl) are consistent, although the error is higher for results based on the 36Cl isotope. The study provides evidence for ice extent in the High Gáallego Valley during the Oldest Dryas, with glacial advance until the bottom of the valleys, although the main glacier tongues remained disconnected from each other. During this period, the extent of glacier advance was directly related to the elevation of the associated summits. The Younger Dryas glaciers were constrained to cirques or very short ice tongues, and dating of the polished rock steps indicates that the ice masses were present until the first millennium of the Holocene. The Brazato rock glacier developed at the beginning of the Holocene and remained active until the Holocene Thermal Optimum, because of the protective effect of large masses of blocks and boulders.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-01-01
2017
2017-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/97066
url https://hdl.handle.net/20.500.14352/97066
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 CRYOCRISIS CGL2012- 35858
Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 ESPAS CGL2015-65569-R
Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 MOUNTAIN WARMING CGL2015-65813-R
Not available Not available Not available
Gobierno de Aragón http://dx.doi.org/10.13039/501100010067 Not available Not available
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869407758924644352
score 15,300724

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