Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/79896
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dc.contributor.authorPérez-Alberti, A.-
dc.contributor.authorCunha, Pedro P.-
dc.date.accessioned2018-06-27T10:19:12Z-
dc.date.available2018-06-27T10:19:12Z-
dc.date.issued2016-
dc.identifier.issn2444–0272pt
dc.identifier.urihttps://hdl.handle.net/10316/79896-
dc.description.abstractThis paper focuses on slope dynamics in schist/slate materials in cold humid environments. It characterises the sedimentological features and controls involved in the for-mation of stratified slope deposits in two areas with similar topographical, lithological and cli-matic characteristics. In both areas, the slopes have dips >30º and the dominant rock types are schists and slates. In the case of Tierra del Fuego, the sedimentary deposits studied are modern; those in Galicia are Pleistocene in age. The slope processes operating in Tierra del Fuego, gen-erating modern stratified slope sedimentary deposits, throw light upon the interpretation of sim-ilar ancient sediments studied in Galicia. This comparative study reveals the fundamental role played by snow and freeze-thaw cycles in the creation of stratified slope deposits. Firstly, snow cover has a direct effect on the slope, compacting sediments, keeping ground temperature stable during winter, or moving clasts as they slip down the slope or act as a slide ramp. Indirectly, as the snow melts, it creates surface run-off and mud or gravel slides. Secondly, the activity gen-erated by numerous freeze-thaw cycles results in the vertical mobility of clasts. However, the continuous loading of sediments on the slope hinders the formation of coarse-grained pavement. Thirdly, the rock type and slope steepness play an important role in the creation of stratified slope deposits.pt
dc.description.sponsorshipSpanish Ministry of Education and Science - projects CGL2004-03380/BOS and POL2006-PC091pt
dc.language.isoengpt
dc.publisherElsevierpt
dc.relationThis study had the support of (FCT), through the Strategic Project UID/MAR/04292/2013pt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by-sa/4.0/pt
dc.subjectStratified slope depositspt
dc.subjectCryonival processespt
dc.subjectFuegian Andespt
dc.subjectArgentinapt
dc.subjectSerra do Courelpt
dc.subjectGaliciapt
dc.subjectSpainpt
dc.titleThe stratified slope deposits of Tierra del Fogo (Argentina) as an annalogue for similar pleistocene deposits in Galicia (NW Spain)pt
dc.typearticle-
degois.publication.firstPage183pt
degois.publication.lastPage209pt
degois.publication.titlePolígonos. Revista de Geografíapt
dc.peerreviewedyespt
dc.identifier.doi10.18002/pol.v0i28pt
degois.publication.volume28pt
dc.date.embargo2016-01-01*
dc.date.periodoembargo0pt
uc.controloAutoridadeSim-
item.openairetypearticle-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.grantfulltextopen-
item.fulltextCom Texto completo-
crisitem.author.researchunitMARE - Marine and Environmental Sciences Centre-
crisitem.author.orcid0000-0002-9956-4652-
Appears in Collections:I&D MARE - Artigos em Revistas Internacionais
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