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dc.contributor.author Möller, Per
dc.contributor.author Hjort, Christian
dc.contributor.author Björck, Svante
dc.contributor.author Rabassa, Jorge Oscar
dc.contributor.author Ponce, Juan Federico
dc.date.available 2017-02-07T18:37:16Z
dc.date.issued 2010-05
dc.identifier.citation Möller, Per; Hjort, Christian; Björck, Svante; Rabassa, Jorge Oscar; Ponce, Juan Federico; Late quaternary glaciation history of Isla de los Estados, southeasternmost South America; Univ Washington; Quaternary Research; 73; 3; 5-2010; 521-534
dc.identifier.issn 0033-5894
dc.identifier.uri http://hdl.handle.net/11336/12666
dc.description.abstract Isla de los Estados is a mountainous island southeast of Tierra del Fuego, in southernmost South America. Its central and eastern parts have an alpine topography, transected by U-shaped valleys, small, partly over-deepened fjords, and a multitude of abandoned cirques, all associated with extensive former local glaciations. Traces of glacial erosion generally reach 400–450 m a.s.l., and above that trimline a distinct sharp-edged nunatak derived landscape is present. The westernmost part of the island has a lower, more subdued topography, reflecting its "softer" geology but possibly also over-running and erosion by mainland-derived ice streams. The present study concentrated on glacigenic sediment sequences exposed along coastal erosional cliffs. A combination of OSL and 14C datings show that these sediments mostly date from the latest (Wisconsinan/Weichselian) glacial cycle, i.e. from the last ca. 100 ka with the oldest (glaciolacustrine) deposits possibly as old as 90–80 ka. The upper parts of overlying tills, with associated lateral and terminal moraines from glaciers that expanded onto an eustatically exposed dry shelf north of the island, date from the last global glacial maximum (LGM). Radiocarbon ages of peat and lake sediments indicate that deglaciation began 17–16 cal ka BP.
dc.format application/pdf
dc.language.iso eng
dc.publisher Univ Washington
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject Isla de los Estados
dc.subject Tierra del Fuego
dc.subject South America
dc.subject glacial geology
dc.subject quaternary history
dc.subject glacial chronology
dc.subject glacial sdimentology
dc.subject.classification Geología
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Late quaternary glaciation history of Isla de los Estados, southeasternmost South America
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-02-07T18:02:51Z
dc.journal.volume 73
dc.journal.number 3
dc.journal.pagination 521-534
dc.journal.pais Estados Unidos
dc.journal.ciudad Washington
dc.description.fil Fil: Möller, Per. Lund University; Suecia
dc.description.fil Fil: Hjort, Christian. Lund University; Suecia
dc.description.fil Fil: Björck, Svante. Lund University; Suecia
dc.description.fil Fil: Rabassa, Jorge Oscar. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Cátedra de Geología del Cuaternario; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de la Patagonia; Argentina
dc.description.fil Fil: Ponce, Juan Federico. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Cátedra de Geología del Cuaternario; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.journal.title Quaternary Research
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/quaternary-research/article/div-classtitlelate-quaternary-glaciation-history-of-isla-de-los-estados-southeasternmost-south-americadiv/E838E5094D54FF96A11FACEA5F77E0CE
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.yqres.2010.02.004


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)