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dc.contributor.authorEncinas, Alfonso-
dc.contributor.authorSagripanti, Lucía-
dc.contributor.authorRodríguez, María Pía-
dc.contributor.authorOrts, Darío Leandro-
dc.contributor.authorAnavalón, A.-
dc.contributor.authorGiroux, P.-
dc.contributor.authorOtero, J.-
dc.contributor.authorEchaurren, A.-
dc.contributor.authorZambrano, P.-
dc.contributor.authorValencia, V.-
dc.date.accessioned2021-02-12T12:23:43Z-
dc.date.available2021-02-12T12:23:43Z-
dc.date.issued2021-02-
dc.identifier.citationEncinas, A., Sagripanti, L., Rodríguez, M.P., Orts, D., Anavalón, A., Giroux, P., Otero, J., Echaurren, A., Zambrano, P., Valencia, V., (2021). Tectonosedimentary evolution of the Coastal Cordillera and Central Depression of south-Central Chile (36°30′-42°S). Earth-Science Reviews; 213; 103465.es_ES
dc.identifier.issn0012-8252es_ES
dc.identifier.otherhttps://www.sciencedirect.com/science/article/pii/S0012825220305110es_ES
dc.identifier.urihttp://rid.unrn.edu.ar/handle/20.500.12049/6696-
dc.description.abstractThe forearc of south-central Chile (36°30′-42°S) is characterized by the presence of a Coastal Cordillera and a low lying area known as the Central Depression. The origin of these morphostructural units has been largely debated. They have been ascribed to different ages between the Cretaceous and the Pliocene, and tectonic causes that involve extensional or contractional deformation and have been related to Andean evolution or accretionary processes in the forearc. To investigate the geologic evolution of the Coastal Cordillera and Central Depression in the cited area, we based on stratigraphy, sedimentology, geochronology (Usingle bondPb, LA-ICP-MS), structural geology, and geomorphology. Our studies, which are based on our own data and a thorough bibliographic review, indicate the following sequence of events in the tectono-sedimentary evolution of the forearc of south-central Chile during the late Cenozoic. The area was subjected to extensional tectonics caused by slab rollback during the Oligocene-early Miocene, resulting in the genesis of a series of basins filled with volcanic, continental, and marine deposits that extended from the present Chilean coast to the retroac. The extensional basins were tectonically inverted during the late Early-Late Miocene, and most of the forearc became a positive relief that was subjected to fluvial erosion. The West Andean Thrust, a major reverse west verging fault in the limit between the Central Depression and the Andean Cordillera, caused significant uplift of the western flank of the Andes. This triggered flexural subsidence and the accumulation of coarse-grained deposits in the forearc during the Pliocene-Pleistocene. The sudden increase of sediment flux to the trench during this period caused a change from non-accretion or subduction erosion to accretion in the margin of south-central Chile. Progressive growth of the accretionary wedge gave birth to a forearc high, the Coastal Cordillera, which was uplifted in the last 2 Ma. Some forearc areas placed above subducted oceanic fracture zones did not experience uplift during this period due to the significant transport of fluid that inhibited the deformation of the accretionary wedge. Our studies show that the late Cenozoic tectono-sedimentary evolution of the forearc in the study area is complex and involves different processes related to Andean evolution in the first stage and accretionary processes acting exclusively in the forearc in a second stage. The Coastal Cordillera and the Central Depression of south-central Chile were developed in the last 2 Ma and are much younger than classically considered.es_ES
dc.format.extentp. 103465es_ES
dc.language.isoenes_ES
dc.publisherElsevier B.V.es_ES
dc.relation.urihttps://www.sciencedirect.com/journal/earth-science-reviewses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/-
dc.titleTectonosedimentary evolution of the Coastal Cordillera and Central Depression of south-Central Chile (36◦30′ -42◦S)es_ES
dc.typeArticuloes_ES
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)-
dc.description.filiationEncinas, Alfonso. Universidad de Concepción, Facultad de Ciencias Químicas, Departamento de Ciencias de la Tierra, Concepción, Chilees_ES
dc.description.filiationSagripanti, Lucía. Universidad de Buenos Aires, CONICET, Instituto de Estudios Andinos "Don Pablo Groeber"-Facultad de Ciencias Exactas y Naturales, Departamento de Geología, Buenos Aires, Argentinaes_ES
dc.description.filiationRodríguez, María Pía. Universidad de Atacama, Departamento de Geología, Copiapó, Chilees_ES
dc.description.filiationOrts, Darío Leandro. Universidad Nacional de Río Negro, Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentines_ES
dc.description.filiationOrts, Darío Leandro. Instituto de Investigación en Paleobiología y Geología (IIPG), CONICET, Av. J. A. Roca 1242, 8332 General Roca, Río Negro, Argentinaes_ES
dc.description.filiationOtero, J. Universidad Austral de Chile, Instituto de Ciencias de la Tierra, Valdivia, Chilees_ES
dc.description.filiationEchaurren, A. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), Centro Científico Tecnológico CONICET, Mendoza, Argentinaes_ES
dc.description.filiationZambrano, P. Universidad Andres Bello, Facultad de Ingeniería, Geología, Autopista Talcahuano, 7100 Concepción, Chilees_ES
dc.description.filiationValencia, V. Washington State University, School of the Environment, Pullman, USAes_ES
dc.description.filiationAnavalón, A. Universidad de Concepción, Facultad de Ciencias Químicas, Departamento de Ciencias de la Tierra, Concepción, Chilees_ES
dc.description.filiationGiroux, P. Universidad de Concepción, Facultad de Ciencias Químicas, Departamento de Ciencias de la Tierra, Concepción, Chilees_ES
dc.subject.keywordForearces_ES
dc.subject.keywordCoastal Cordilleraes_ES
dc.subject.keywordCentral Depressiones_ES
dc.subject.keywordWest Andean Thrustes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.materiaGeociencias (Multidisciplinar)es_ES
dc.origin.lugarDesarrolloUniversidad Nacional de Río Negroes_ES
dc.origin.lugarDesarrolloUniversidad de Buenos Aireses_ES
dc.origin.lugarDesarrolloUniversidad de Concepciónes_ES
dc.origin.lugarDesarrolloUniversidad de Atacamaes_ES
dc.origin.lugarDesarrolloUniversidad Austral de Chilees_ES
dc.origin.lugarDesarrolloUniversidad Andres Belloes_ES
dc.origin.lugarDesarrolloWashington State Universityes_ES
dc.origin.lugarDesarrolloInstituto Argentino de Nivología, Glaciología y Ciencias Ambientaleses_ES
dc.relation.journalissue213es_ES
dc.description.reviewtruees_ES
dc.description.resumen.es_ES
dc.identifier.doihttps://doi.org/10.1016/j.earscirev.2020.103465-
dc.relation.journalTitleEarth-Science Reviewses_ES
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