Logo do repositório
 
Publicação

The origin and collapse of rock glaciers during the Bølling-Allerød interstadial: a new study case from the Cantabrian Mountains (Spain)

2022Artigo científico Acesso aberto
Ver registo simples
dc.contributor.authorSantos-González, Javier
dc.contributor.authorGonzález-Gutiérrez, Rosa Blanca
dc.contributor.authorRedondo-Vega, José María
dc.contributor.authorGómez-Villar, Amelia
dc.contributor.authorJomelli, Vincent
dc.contributor.authorFernández-Fernández, Jose M.
dc.contributor.authorAndrés, Nuria
dc.contributor.authorGarcía-Ruiz, José M.
dc.contributor.authorPeña-Pérez, Sergio Alberto
dc.contributor.authorMelón-Nava, Adrián
dc.contributor.authorOliva, Marc
dc.contributor.authorÁlvarez-Martínez, Javier
dc.contributor.authorCharton, Joanna
dc.contributor.authorPalacios, David
dc.date.accessioned2022-02-22T10:31:05Z
dc.date.available2022-02-22T10:31:05Z
dc.date.issued2022
dc.description.abstractDuring 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.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSantos-González, J., González-Gutiérrez, R. B., Redondo-Vega, J. M., Gómez-Villar, A., Jomelli, V., Fernández-Fernández, J. M., Andrés, N., García-Ruiz, J. M., Peña-Pérez, S. A., Melón-Nava, A., Oliva, M., Álvarez-Martínez, J., Charton, J., & Palacios, D. (2022). The origin and collapse of rock glaciers during the Bølling-Allerød interstadial: a new study case from the Cantabrian Mountains (Spain). Geomorphology, 401, 108112. https://doi.org/10.1016/j.geomorph.2022.108112pt_PT
dc.identifier.doi10.1016/j.geomorph.2022.108112pt_PT
dc.identifier.issn0169-555X
dc.identifier.urihttp://hdl.handle.net/10451/51443
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0169555X22000058?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectRock glacierpt_PT
dc.subjectDeglaciationpt_PT
dc.subjectParaglacial processespt_PT
dc.subjectCosmic-Ray Exposure datingpt_PT
dc.subjectBølling-Allerød interstadialpt_PT
dc.subjectCantabrian Mountainspt_PT
dc.titleThe origin and collapse of rock glaciers during the Bølling-Allerød interstadial: a new study case from the Cantabrian Mountains (Spain)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberPTDC/CTA-GFI/32002/2017
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FCTA-GFI%2F32002%2F2017/PT
oaire.citation.startPage108112pt_PT
oaire.citation.titleGeomorphologypt_PT
oaire.citation.volume401pt_PT
oaire.fundingStream3599-PPCDT
person.familyNameFernández-Fernández
person.familyNameOliva
person.givenNameJose M.
person.givenNameMarc
person.identifier.ciencia-id5510-AC71-085A
person.identifier.orcid0000-0002-6948-1530
person.identifier.orcid0000-0001-6521-6388
person.identifier.ridK-5423-2014
person.identifier.scopus-author-id35225198700
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb9a62c34-99a3-4c71-ae9e-cd42eb059393
relation.isAuthorOfPublicationd416bf65-77f6-488e-b275-5fbb257df6d4
relation.isAuthorOfPublication.latestForDiscoveryb9a62c34-99a3-4c71-ae9e-cd42eb059393
relation.isProjectOfPublication78938a2f-549b-4f0e-bebc-c7310eb0beec
relation.isProjectOfPublication.latestForDiscovery78938a2f-549b-4f0e-bebc-c7310eb0beec

Ficheiros

Principais
A mostrar 1 - 1 de 1
Miniatura
Nome:
Santos-Gonzalez[...]Fernandez-Fernandez_[et al.]_2021.pdf
Tamanho:
11.75 MB
Formato:
Adobe Portable Document Format
Ver/Abrir

Coleções

IGOT - Artigos em Revistas Internacionais