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Postglacial landscape changes and cryogenic processes in the Picos de Europa (Northern Spain): reconstructed from geomorphological mapping and microstructures on quartz grains

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dc.contributor.authorNieuwendam, Alexandre
dc.contributor.authorRuiz-Fernández, Jesús
dc.contributor.authorOliva, Marc
dc.contributor.authorLopes, Vera
dc.contributor.authorCruces, Anabela
dc.contributor.authorda Conceição Freitas, Maria
dc.date.accessioned2017-06-23T15:35:58Z
dc.date.available2017-06-23T15:35:58Z
dc.date.issued2016
dc.description.abstractA 5.4m long sediment core was collected from Belbín, a karstic depression dammed by a moraine in a mid-altitude environment in the Western Massif of the Picos de Europa of the Cantabrian Mountains, northern Spain. 14C AMS dating of the basal sediments in the core suggests that the maximum glacier advance during the last glacial cycle preceded the global Last Glacial Maximum and occurred prior to 37.2 ka cal BP. Four environmental stages are reconstructed from analysis of the sediment core and in particular the surface microstructures on quartz sand grains: (1) 37.2–29.4 ka was characterised by intense periglacial activity with deposition of slope deposits; (2) 29.4–22.6 ka saw the gradual infilling of the depression with sediment; (3) 22.6–8.1 ka was associated with a palaeolake; and (4) since 8.1 ka, terrestrialisation of the palaeolake commenced, and human impact related to fire activity started around 4.9 ka. Microstructures on the surface of quartz grains suggest different intensity patterns of frost weathering processes in response to Late Quaternary climate oscillations.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationNieuwendam, Alexandre, Ruiz-Fernández, Jesús, Oliva, Marc, Lopes, Vera, Cruces, Anabela, & Freitas, Maria da Conceição. (2016). Postglacial landscape changes and cryogenic processes in the Picos de Europa (Northern Spain): reconstructed from geomorphological mapping and microstructures on quartz grains. Permafrost and Periglacial Processes, 27(1), 96-108. https://doi.org/10.1002/ppp.1853
dc.identifier.doi10.1002/ppp.1853pt_PT
dc.identifier.issn1099-1530
dc.identifier.urihttp://hdl.handle.net/10451/28168
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWiley Online Librarypt_PT
dc.subjectPicos de Europapt_PT
dc.subjectLast Glaciationpt_PT
dc.subjectDeglaciationpt_PT
dc.subjectGeomorphologypt_PT
dc.subjectQuartz grainspt_PT
dc.subjectFrost weatheringpt_PT
dc.titlePostglacial landscape changes and cryogenic processes in the Picos de Europa (Northern Spain): reconstructed from geomorphological mapping and microstructures on quartz grainspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage108pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage96pt_PT
oaire.citation.titlePermafrost and Periglacial Processespt_PT
oaire.citation.volume27pt_PT
person.familyNameNieuwendam
person.familyNameOliva
person.givenNameAlexandre
person.givenNameMarc
person.identifier.ciencia-id5510-AC71-085A
person.identifier.orcid0000-0003-3827-1132
person.identifier.orcid0000-0001-6521-6388
person.identifier.ridK-5423-2014
person.identifier.scopus-author-id35225198700
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb53b54cf-f700-4a2b-84e6-c013e2547056
relation.isAuthorOfPublicationd416bf65-77f6-488e-b275-5fbb257df6d4
relation.isAuthorOfPublication.latestForDiscoveryd416bf65-77f6-488e-b275-5fbb257df6d4

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