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Glacial and periglacial dynamics during the last deglaciation in the Bonabé Valley (Marimanha Massif), central southern Pyrenees

2025Artigo científico Acesso aberto
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dc.contributor.authorVentura, Josep
dc.contributor.authorOliva, Marc
dc.contributor.authorFernández-Fernández, José M.
dc.contributor.authorFernandes, Marcelo
dc.contributor.authorPalacios, David
dc.contributor.authorLeger, Tancrède
dc.contributor.authorJomelli, Vincent
dc.contributor.authorGrau, Oriol
dc.contributor.authorTEAM, A.S.T.E.R.
dc.date.accessioned2025-06-04T15:16:48Z
dc.date.available2025-06-04T15:16:48Z
dc.date.issued2025
dc.description.abstractIn this study we reconstruct the deglaciation of the Bonabé valley in the Marimanha massif (upper Noguera Pallaresa valley, central southern Pyrenees) by combining geomorphological mapping and cosmic-ray exposure dating methods applied to a set of 17 samples from moraines, rock glacier boulders and glacially-polished surfaces. This valley includes eight moraine systems and two rock glaciers, and the geochronological results reveal one of the most complete sequences of glacial and periglacial phases documented in the Pyrenees, from the Heinrich Stadial 1, Bølling-Allerød and Younger Dryas events to the onset of the Holocene. The cooling recorded during the Heinrich Stadial 1 generated three phases of glacier advance/still stands between 17.3 and 15.3 ka, with the development of 2-4 km long alpine glaciers. The Bølling-Allerød interstadial entailed a rapid process of valley and cirque deglaciation around 15-13 ka, and the replacement of glacial processes by periglacial dynamics characterised by the formation of polygenetic rock glaciers. The Younger Dryas favoured both the development of the upper ridges of a rock glacier that stabilised around 12.3 ka, and the formation of new small cirque glaciers that built moraines which stabilised around 11 ka.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVentura, J., Oliva, M., Fernández-Fernández, J. M., Fernandes, M., Palacios, D., Leger, T., Jomelli, V. Grau, O. & A.S.T.E.R. TEAM (2025). Glacial and periglacial dynamics during the last deglaciation in the Bonabé Valley (Marimanha Massif), central southern Pyrenees. Geomorphology, 482, 109801. https://doi.org/10.1016/j.geomorph.2025.109801pt_PT
dc.identifier.doi10.1016/j.geomorph.2025.109801pt_PT
dc.identifier.issn0169-555X
dc.identifier.urihttp://hdl.handle.net/10400.5/101296
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0169555X25002119?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectDeglaciationpt_PT
dc.subjectMorainespt_PT
dc.subjectRock glacierspt_PT
dc.subjectCosmic-ray exposure datingpt_PT
dc.subjectCentral Pyreneespt_PT
dc.titleGlacial and periglacial dynamics during the last deglaciation in the Bonabé Valley (Marimanha Massif), central southern Pyreneespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage109801pt_PT
oaire.citation.titleGeomorphologypt_PT
oaire.citation.volume482pt_PT
person.familyNameOliva
person.familyNameVieira Fernandes
person.givenNameMarc
person.givenNameMarcelo
person.identifierhttps://www.researchgate.net/profile/Marcelo-Fernandes-11
person.identifier.ciencia-id5510-AC71-085A
person.identifier.ciencia-idDC16-4FD0-6F5B
person.identifier.orcid0000-0001-6521-6388
person.identifier.orcid0000-0001-6840-4317
person.identifier.ridK-5423-2014
person.identifier.scopus-author-id35225198700
person.identifier.scopus-author-idhttps://www.scopus.com/authid/detail.uri?authorId=57204148423
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd416bf65-77f6-488e-b275-5fbb257df6d4
relation.isAuthorOfPublication3b138e07-7c52-4576-a5c2-d8c8e22965d5
relation.isAuthorOfPublication.latestForDiscoveryd416bf65-77f6-488e-b275-5fbb257df6d4

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