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dc.contributor.author
Richter, Andreas Jorg
dc.contributor.author
Ivins, E.
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Lange, H.
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Mendoza, Luciano Pedro Oscar
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Schoder, L.
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Hormaechea, José Luis
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Casassa, G.
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Marderwald, Eric Rodolfo
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Fritsche, M.
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Perdomo, Raul Anibal
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Horwath, M.
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Dietrich, R.
dc.date.available
2018-08-09T19:42:27Z
dc.date.issued
2016-10
dc.identifier.citation
Richter, Andreas Jorg; Ivins, E.; Lange, H.; Mendoza, Luciano Pedro Oscar; Schoder, L.; et al.; Crustal deformation across the Southern Patagonian Icefield observed by GNSS; Elsevier Science; Earth and Planetary Science Letters; 452; 10-2016; 206-215
dc.identifier.issn
0012-821X
dc.identifier.uri
http://hdl.handle.net/11336/54843
dc.description.abstract
Geodetic GNSS observations at 43 sites well distributed over the Southern Patagonian Icefield region yield site velocities with a mean accuracy of 1 mm/a and 6 mm/a for the horizontal and vertical components, respectively. These velocities are analyzed to reveal the magnitudes and patterns of vertical and horizontal present-day crustal deformation as well as their primary driving processes. The observed vertical velocities confirm a rapid uplift, with rates peaking at 41 mm/a, causally related to glacial-isostatic adjustment (GIA). They yield now an unambiguous preference between two competing GIA models. Remaining discrepancies between the preferred model and our observations point toward an effective upper mantle viscosity even lower than 1.6⋅1018 Pas and effects of lateral rheological heterogeneities. An analysis of the horizontal strain and strain-rate fields reveals some complex superposition, with compression dominating in the west and extension in the east. This deformation field suggests significant contributions from three processes: GIA, a western interseismic tectonic deformation field related to plate subduction, and an extensional strain-rate field related to active Patagonian slab window tectonics.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Crustal Deformation
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Glacial-Isostatic Adjustment
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Gnss
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Patagonia
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Meteorología y Ciencias Atmosféricas
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Crustal deformation across the Southern Patagonian Icefield observed by GNSS
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-09T15:20:31Z
dc.journal.volume
452
dc.journal.pagination
206-215
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Richter, Andreas Jorg. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Technische Universität Dresden; Alemania. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
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Fil: Ivins, E.. California Institute of Technology; Estados Unidos
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Fil: Lange, H.. Technische Universität Dresden; Alemania
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Fil: Mendoza, Luciano Pedro Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
dc.description.fil
Fil: Schoder, L.. Technische Universität Dresden; Alemania
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Fil: Hormaechea, José Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Estación Astronómica Río Grande; Argentina
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Fil: Casassa, G.. Geoestudios; Chile. Universidad de Magallanes; Chile
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Fil: Marderwald, Eric Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
dc.description.fil
Fil: Fritsche, M.. Technische Universität Dresden; Alemania. GFZ German Research Centre for Geosciences; Alemania
dc.description.fil
Fil: Perdomo, Raul Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
dc.description.fil
Fil: Horwath, M.. Technische Universität Dresden; Alemania
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Fil: Dietrich, R.. Technische Universität Dresden; Alemania
dc.journal.title
Earth and Planetary Science Letters
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.epsl.2016.07.042
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0012821X16303983
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