The origin and collapse of rock glaciers during the bølling-allerød interstadial: a new study case from the cantabrian mountains (Spain)
During the Late Pleistocene, the main mountain ranges of the Iberian Peninsula were covered by small icefields and cirque and alpine glaciers. The deglaciation triggered paraglacial processes that generated landforms, mostly within the ice-free glacial cirques. In this research we analyse the deglac...
| Autores: | , , , , , , , , , , , , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/123386 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/123386 |
| Access Level: | acceso abierto |
| Palavra-chave: | 911.2 550.93 551.3 551.4 Rock glacier Deglaciation Paraglacial processes Cosmic-Ray Exposure dating Bølling-Allerød interstadial Cantabrian Mountains Geografía física Geodinámica 2505.07 Geografía Física 2506.07 Geomorfología 2503.04 Geocronología y Radioisótopos 2506.09 Geología Glacial |
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The origin and collapse of rock glaciers during the bølling-allerød interstadial: a new study case from the cantabrian mountains (Spain)Santos-González, JavierGonzález-Gutiérrez, Rosa BlancaRedondo-Vega, José MaríaGómez-Villar, AmeliaJomelli, VincentFernández Fernández, José MaríaDe Andrés de Pablo, NuriaGarcía-Ruiz, José MaríaPeña-Pérez, Sergio AlbertoMelón-Nava, AdriánOliva, MarcÁlvarez-Martínez, JavierCharton, JoannaPalacios Estremera, David911.2550.93551.3551.4Rock glacierDeglaciationParaglacial processesCosmic-Ray Exposure datingBølling-Allerød interstadialCantabrian MountainsGeografía físicaGeodinámica2505.07 Geografía Física2506.07 Geomorfología2503.04 Geocronología y Radioisótopos2506.09 Geología GlacialDuring the Late Pleistocene, the main mountain ranges of the Iberian Peninsula were covered by small icefields and cirque and alpine glaciers. The deglaciation triggered paraglacial processes that generated landforms, mostly within the ice-free glacial cirques. In this research we analyse the deglaciation process in the Muxivén Cirque (42°15′N – 6°16′W), in the upper Sil River Basin, which includes some of the largest relict rock glaciers of the Cantabrian Mountains. We addressed this objective by means of accurate geomorphological reconstructions, sedimentological analysis, Schmidt-hammer surface weathering measurements and a dataset of 10 10Be Cosmic-Ray Exposure ages. Results reveal that after ~16 ka, glaciers retreated to the bottom of the cirques at the headwaters of the valley, leaving the walls free of ice and triggering rock avalanches onto the remnants of these glaciers. This paraglacial process supplied debris to a small glacier within Muxivén Cirque, which transformed in two rock glaciers. These debris isolated the ice inside the rock glaciers only for a very short period of time and ended up melting completely before the Younger Dryas. The lower sector of the largest one stabilized at 14.5 ± 1.5 ka, while the upper sector remained active until 13.5 ± 0.8 ka. Previous to the stabilization of the lower sector of the northern rock glacier, at its margin a high-energy debris avalanche occurred at ~14.0 ± 0.9 ka. These data agree with previous research, corroborating the paraglacial origin of most Iberian rock glaciers during the Bølling-Allerød interstadial.ElsevierUniversidad Complutense de Madrid20222022-01-0120222022-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/123386reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)InglésengMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 Not available RYC-2015-17597 RYC-2015-17597Fundação para a Ciência e a Tecnologia NUNANTAR 02%2FSAICT%2F2017-32002Junta de Castilla y León http://dx.doi.org/10.13039/501100014180 LE080G19 Not availableBanco Santander - UCM PR108%2F20-20 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:20.500.14352/1233862026-06-02T12:44:21Z |
| dc.title.none.fl_str_mv |
The origin and collapse of rock glaciers during the bølling-allerød interstadial: a new study case from the cantabrian mountains (Spain) |
| title |
The origin and collapse of rock glaciers during the bølling-allerød interstadial: a new study case from the cantabrian mountains (Spain) |
| spellingShingle |
The origin and collapse of rock glaciers during the bølling-allerød interstadial: a new study case from the cantabrian mountains (Spain) Santos-González, Javier 911.2 550.93 551.3 551.4 Rock glacier Deglaciation Paraglacial processes Cosmic-Ray Exposure dating Bølling-Allerød interstadial Cantabrian Mountains Geografía física Geodinámica 2505.07 Geografía Física 2506.07 Geomorfología 2503.04 Geocronología y Radioisótopos 2506.09 Geología Glacial |
| title_short |
The origin and collapse of rock glaciers during the bølling-allerød interstadial: a new study case from the cantabrian mountains (Spain) |
| title_full |
The origin and collapse of rock glaciers during the bølling-allerød interstadial: a new study case from the cantabrian mountains (Spain) |
| title_fullStr |
The origin and collapse of rock glaciers during the bølling-allerød interstadial: a new study case from the cantabrian mountains (Spain) |
| title_full_unstemmed |
The origin and collapse of rock glaciers during the bølling-allerød interstadial: a new study case from the cantabrian mountains (Spain) |
| title_sort |
The origin and collapse of rock glaciers during the bølling-allerød interstadial: a new study case from the cantabrian mountains (Spain) |
| dc.creator.none.fl_str_mv |
Santos-González, Javier González-Gutiérrez, Rosa Blanca Redondo-Vega, José María Gómez-Villar, Amelia Jomelli, Vincent Fernández Fernández, José María De Andrés de Pablo, Nuria García-Ruiz, José María Peña-Pérez, Sergio Alberto Melón-Nava, Adrián Oliva, Marc Álvarez-Martínez, Javier Charton, Joanna Palacios Estremera, David |
| author |
Santos-González, Javier |
| author_facet |
Santos-González, Javier González-Gutiérrez, Rosa Blanca Redondo-Vega, José María Gómez-Villar, Amelia Jomelli, Vincent Fernández Fernández, José María De Andrés de Pablo, Nuria García-Ruiz, José María Peña-Pérez, Sergio Alberto Melón-Nava, Adrián Oliva, Marc Álvarez-Martínez, Javier Charton, Joanna Palacios Estremera, David |
| author_role |
author |
| author2 |
González-Gutiérrez, Rosa Blanca Redondo-Vega, José María Gómez-Villar, Amelia Jomelli, Vincent Fernández Fernández, José María De Andrés de Pablo, Nuria García-Ruiz, José María Peña-Pérez, Sergio Alberto Melón-Nava, Adrián Oliva, Marc Álvarez-Martínez, Javier Charton, Joanna Palacios Estremera, David |
| author2_role |
author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Universidad Complutense de Madrid |
| dc.subject.none.fl_str_mv |
911.2 550.93 551.3 551.4 Rock glacier Deglaciation Paraglacial processes Cosmic-Ray Exposure dating Bølling-Allerød interstadial Cantabrian Mountains Geografía física Geodinámica 2505.07 Geografía Física 2506.07 Geomorfología 2503.04 Geocronología y Radioisótopos 2506.09 Geología Glacial |
| topic |
911.2 550.93 551.3 551.4 Rock glacier Deglaciation Paraglacial processes Cosmic-Ray Exposure dating Bølling-Allerød interstadial Cantabrian Mountains Geografía física Geodinámica 2505.07 Geografía Física 2506.07 Geomorfología 2503.04 Geocronología y Radioisótopos 2506.09 Geología Glacial |
| description |
During the Late Pleistocene, the main mountain ranges of the Iberian Peninsula were covered by small icefields and cirque and alpine glaciers. The deglaciation triggered paraglacial processes that generated landforms, mostly within the ice-free glacial cirques. In this research we analyse the deglaciation process in the Muxivén Cirque (42°15′N – 6°16′W), in the upper Sil River Basin, which includes some of the largest relict rock glaciers of the Cantabrian Mountains. We addressed this objective by means of accurate geomorphological reconstructions, sedimentological analysis, Schmidt-hammer surface weathering measurements and a dataset of 10 10Be Cosmic-Ray Exposure ages. Results reveal that after ~16 ka, glaciers retreated to the bottom of the cirques at the headwaters of the valley, leaving the walls free of ice and triggering rock avalanches onto the remnants of these glaciers. This paraglacial process supplied debris to a small glacier within Muxivén Cirque, which transformed in two rock glaciers. These debris isolated the ice inside the rock glaciers only for a very short period of time and ended up melting completely before the Younger Dryas. The lower sector of the largest one stabilized at 14.5 ± 1.5 ka, while the upper sector remained active until 13.5 ± 0.8 ka. Previous to the stabilization of the lower sector of the northern rock glacier, at its margin a high-energy debris avalanche occurred at ~14.0 ± 0.9 ka. These data agree with previous research, corroborating the paraglacial origin of most Iberian rock glaciers during the Bølling-Allerød interstadial. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022 2022-01-01 2022 2022-01-01 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/20.500.14352/123386 |
| url |
https://hdl.handle.net/20.500.14352/123386 |
| 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 Not available RYC-2015-17597 RYC-2015-17597 Fundação para a Ciência e a Tecnologia NUNANTAR 02%2FSAICT%2F2017-32002 Junta de Castilla y León http://dx.doi.org/10.13039/501100014180 LE080G19 Not available Banco Santander - UCM PR108%2F20-20 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 |
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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 |
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Docta Complutense |
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|
| repository.mail.fl_str_mv |
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1869425107120685056 |
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15,812455 |