Sandstone petrography and provenance of the Chubut Group (Cretaceous) in the Cañadón Matasiete (Golfo San Jorge Basin, central Patagonia): Implications for basin evolution and allu...

Autores
Olazábal, Sabrina X.; Tunik, Maisa A.; Paredes, José M.
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Olazábal, Sabrina X. Universidad Nacional de la Patagonia San Juan Bosco. Departamento de Geología, FCNyCS. Chubut, Argentina.
Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina.
Fil: Paredes, José M. Universidad Nacional de la Patagonia San Juan Bosco. Departamento de Geología, FCNyCS. Chubut, Argentina.
Fil: Tunik, Maisa A. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina
Sandstone 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.
Materia
Petrography
Provenance
Multiple Source Areas
Chubut Group
Cretaceous
Golfo San Jorge Basin
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/5353
Acceder
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spelling 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 organizationOlazábal, Sabrina X.Tunik, Maisa A.Paredes, José M.PetrographyProvenanceMultiple Source AreasChubut GroupCretaceousGolfo San Jorge BasinFil: Olazábal, Sabrina X. Universidad Nacional de la Patagonia San Juan Bosco. Departamento de Geología, FCNyCS. Chubut, Argentina.Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina.Fil: Paredes, José M. Universidad Nacional de la Patagonia San Juan Bosco. Departamento de Geología, FCNyCS. Chubut, Argentina.Fil: Tunik, Maisa A. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, ArgentinaSandstone 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.Elsevier2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfOlazábal, 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; 1-160895-98111873-0647https://www.sciencedirect.com/science/article/pii/S0895981119307059https://doi.org/10.1016/j.jsames.2019.102463https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5353eng98Journal of South American Earth Sciencesinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-04T11:12:56Zoai:rid.unrn.edu.ar:20.500.12049/5353instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-04 11:12:57.008RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv 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
title 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
spellingShingle 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
Olazábal, Sabrina X.
Petrography
Provenance
Multiple Source Areas
Chubut Group
Cretaceous
Golfo San Jorge Basin
title_short 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
title_full 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
title_fullStr 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
title_full_unstemmed 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
title_sort 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
dc.creator.none.fl_str_mv Olazábal, Sabrina X.
Tunik, Maisa A.
Paredes, José M.
author Olazábal, Sabrina X.
author_facet Olazábal, Sabrina X.
Tunik, Maisa A.
Paredes, José M.
author_role author
author2 Tunik, Maisa A.
Paredes, José M.
author2_role author
author
dc.subject.none.fl_str_mv Petrography
Provenance
Multiple Source Areas
Chubut Group
Cretaceous
Golfo San Jorge Basin
topic Petrography
Provenance
Multiple Source Areas
Chubut Group
Cretaceous
Golfo San Jorge Basin
dc.description.none.fl_txt_mv Fil: Olazábal, Sabrina X. Universidad Nacional de la Patagonia San Juan Bosco. Departamento de Geología, FCNyCS. Chubut, Argentina.
Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina.
Fil: Paredes, José M. Universidad Nacional de la Patagonia San Juan Bosco. Departamento de Geología, FCNyCS. Chubut, Argentina.
Fil: Tunik, Maisa A. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Buenos Aires, Argentina
Sandstone 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.
description Fil: Olazábal, Sabrina X. Universidad Nacional de la Patagonia San Juan Bosco. Departamento de Geología, FCNyCS. Chubut, Argentina.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Olazábal, 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; 1-16
0895-9811
1873-0647
https://www.sciencedirect.com/science/article/pii/S0895981119307059
https://doi.org/10.1016/j.jsames.2019.102463
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5353
identifier_str_mv Olazábal, 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; 1-16
0895-9811
1873-0647
url https://www.sciencedirect.com/science/article/pii/S0895981119307059
https://doi.org/10.1016/j.jsames.2019.102463
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5353
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 98
Journal of South American Earth Sciences
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
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