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dc.contributor.authorRuiz González, Víctor-
dc.contributor.authorPuigdomenech Negre, Carla G.-
dc.contributor.authorZaffarana, Claudia Batriz-
dc.contributor.authorVizán, Haroldo-
dc.contributor.authorSomoza, Rubén-
dc.date.accessioned2020-07-28T12:38:23Z-
dc.date.available2020-07-28T12:38:23Z-
dc.date.issued2020-03-
dc.identifier.citationRuiz Gonzalez, Víctor., Puigdomenech, Carla G., Zaffarana, Claudia B., Vizán, Haroldo y Somoza, Rubén (2020). Paleomagnetic evidence of the brittle deformation of the Central Patagonian Batholith at Gastre area (Chubut Province, Argentina). Elsevier Science Ltd; Journal of South American Earth Sciences; 98; 102442.es_ES
dc.identifier.issn0895-9811es_ES
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0895981119305619?via%3Dihub-
dc.identifier.urihttps://doi.org/10.1016/j.jsames.2019.102442-
dc.identifier.urihttp://rid.unrn.edu.ar/handle/20.500.12049/5421-
dc.description.abstractThe Central Patagonian Batholith (CPB) in the Gastre area, central Patagonia, constitutes a set of two I-type Late Triassic plutonic suites, the Gastre superunit with a U-Pb zircon age of 221 ± 2 Ma, and the Lipetrén superunit with a U-Pb SHRIMP age of 215 ± 1 Ma. The source of this calc-alkaline batholith is characterized by crustal and mantle contributions, and it registers NW-SE subvertical magmatic and solid-state fabrics. These features, together with its intraplate position away from the inferred proto-Gondwana margin, have made it the focus of different tectonic interpretations. Early studies have interpreted it as the record of major dextral motions along the transcontinental NW-SE-striking Gastre fault system in Jurassic times. Later interpretations have proposed that the magmatic and tectonic foliations of the CPB were formed during a sinistral transpressive regime which was aided by Late Paleozoic widespread NW-SE subvertical structures in the North Patagonian Massif. Paleomagnetism, a unique tool to detect the presence of tectonic block rotations on vertical axes, was applied in the CPB in order to constrain the timing and type of deformation in the area. A paleomagnetic pole was obtained, which statistical parameters are: N = 45, Lat. = 81.4°S, Long. = 207°E, K = 11.5, A95 = 6.6°. Although the position of this pole does not coincide with equivalent Late Triassic poles, this position can be reconciled with the presence of a NE tilting of about 11° of the sampled block of the batholith. The tilting would have been aided by the NW-SE subvertical structures that affect the area. These paleomagnetic results rule out the possibility of vertical axis rotations from Late Triassic to present times and suggest that the ductile syn- to post-emplacement deformation of the CPB in Gastre area occurred during this period (Late Triassic), being the later brittle deformation triggered by the Andean Orogeny a possible explanation for this tilting.es_ES
dc.format.extentp. 102442es_ES
dc.format.mediumdigitales_ES
dc.language.isoenes_ES
dc.publisherElsevier Science Ltdes_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/-
dc.titlePaleomagnetic evidence of the brittle deformation of the Central Patagonian Batholith at Gastre area (Chubut Province, Argentina)es_ES
dc.typeArticuloes_ES
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)-
dc.description.filiationFil: Ruiz González, Víctor. Universidad de Buenos Aires. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Puigdomenech Negre, Carla G. Universidad de Buenos Aires. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Zaffarana, Claudia B. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina.es_ES
dc.description.filiationFil: Vizán, Haroldo. Universidad de Buenos Aires. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Somoza, Rubén. Universidad de Buenos Aires. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Ruiz González, Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Puigdomenech Negre, Carla G. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Zaffarana, Claudia B. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Vizán, Haroldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.es_ES
dc.description.filiationFil: Somoza, Rubén. Consejo Nacional de Investigaciones Científicas y Técnicas. Buenos Aires, Argentina.es_ES
dc.subject.keywordGastre Fault Systemes_ES
dc.subject.keywordAndean Orogenyes_ES
dc.subject.keywordTectonic Inversiones_ES
dc.subject.keywordGastre Basines_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.materiaGeofísicaes_ES
dc.origin.lugarDesarrolloUniversidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología.es_ES
dc.relation.journalissue98es_ES
dc.description.reviewtruees_ES
dc.description.resumen-es_ES
dc.relation.journalTitleJournal of South American Earth Scienceses_ES
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