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dc.contributor.authorOlazábal, Sabrina X.-
dc.contributor.authorTunik, Maisa A.-
dc.contributor.authorParedes, José M.-
dc.date.accessioned2020-06-23T15:38:57Z-
dc.date.available2020-06-23T15:38:57Z-
dc.date.issued2020-
dc.identifier.citationOlazábal, Sabrina X., Tunik, Maisa A., Paredes, José M. (2020). Sandstone petrography and provenance of the Chubut Group (Cretaceous) in the Cañadón Matasiete (Golfo San Jorge Basin, central Patagonia): Implications for basin evolution and alluvial organization. Elsevier; Journal of South American Earth Sciences; 98; 1-16es_ES
dc.identifier.issn0895-9811es_ES
dc.identifier.issn1873-0647es_ES
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0895981119307059-
dc.identifier.urihttps://doi.org/10.1016/j.jsames.2019.102463-
dc.identifier.urihttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/5353-
dc.format.extentp. 1-16es_ES
dc.format.mediumimpresoes_ES
dc.format.mediumdigitales_ES
dc.language.isoenes_ES
dc.publisherElsevieres_ES
dc.titleSandstone petrography and provenance of the Chubut Group (Cretaceous) in the Cañadón Matasiete (Golfo San Jorge Basin, central Patagonia): Implications for basin evolution and alluvial organizationes_ES
dc.typeArticuloes_ES
dc.rights.licensehttps://creativecommons.org/licenses/by-nc-sa/4.0/es_ES
dc.description.filiationFil: Olazábal, Sabrina X. Universidad Nacional de la Patagonia San Juan Bosco. Departamento de Geología, FCNyCS. Chubut, Argentina.es_ES
dc.description.filiationFil: Tunik, Maisa A. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina.es_ES
dc.description.filiationFil: Paredes, José M. Universidad Nacional de la Patagonia San Juan Bosco. Departamento de Geología, FCNyCS. Chubut, Argentina.es_ES
dc.description.filiationFil: Tunik, Maisa A. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentinaes_ES
dc.subject.keywordPetrographyes_ES
dc.subject.keywordProvenancees_ES
dc.subject.keywordMultiple Source Areases_ES
dc.subject.keywordChubut Groupes_ES
dc.subject.keywordCretaceouses_ES
dc.subject.keywordGolfo San Jorge Basines_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_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.resumenSandstone petrographic data have been used to investigate the provenance of the Matasiete, Pozo D-129, and Castillo formations (Chubut Group) in the Cañadón Matasiete, San Bernardo Fold Belt at Golfo San Jorge Basin, Argentina. Available petrographical data provides evidence of several distinctive volcanic source areas, with minor contributions of metamorphic, plutonic, or sedimentary components. Paleo-volcanic contributions from basic-intermediate (lathwork and microlithic textures) and acidic compositions (felsitic, seriate, granular, and vitric textures) were mainly derived from the Middle-Upper Jurassic rocks of the Lonco Trapial Formation. Pyroclastic components (glass shards, pumice fragments, and eutaxitic textures) derived from coeval volcanic activity in the Andes Cordillera, generated either gradual or abrupt changes in the source of the lithic fragments along the study succession. The observed trends in detrital lithic provenance can be integrated with previous sedimentological and architectural studies of the Matasiete and Castillo formations, revealing that narrow-sheet geometries of the channel fill characterize stratigraphic intervals dominated by pyroclastic components, whereas stratigraphic intervals that contain a low content of pyroclastic materials in the channel fill show ribbon-shaped geometries. Sandstone petrography in volcaniclastic basins can be used to complement other indicators of the evolution of the fluvial systems, providing reliable information about the nature of the changes in the sediment supply within the drainage catchment.es_ES
dc.relation.journalTitleJournal of South American Earth Scienceses_ES
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