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dc.contributor.author
del Papa, Cecilia Eugenia
dc.contributor.author
Petrinovic, Ivan Alejandro
dc.date.available
2018-05-10T15:02:45Z
dc.date.issued
2017-01
dc.identifier.citation
del Papa, Cecilia Eugenia; Petrinovic, Ivan Alejandro; The development of miocene extensional and short-lived basin in the Andean broken foreland: The Conglomerado Los Patos, Northwestern Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 73; 1-2017; 191-201
dc.identifier.issn
0895-9811
dc.identifier.uri
http://hdl.handle.net/11336/44755
dc.description.abstract
The Conglomerado Los Patos is a coarse-grained clastic unitthat crops out irregularly in the San Antonio de los Cobres Valley in thePuna, Northwestern Argentina. It covers different units of theCretaceous-Paleogene Salta Group by means of an angular unconformity and,in turn, is overlaid in angular unconformity by the ViscachayocIgnimbrite (13±0.3 Ma) or by late Miocene tuffs.Three lithofacies have been identified in the Corte Blanco locality; 1)Bouldery matrix-supported conglomerate (Gmm); 2) Clast-supportedconglomerate (Gch) and 3) Imbricated clast-supported conglomerate (Gci).The stratigraphic pattern displays a general fining upward trend. Thesedimentary facies association suggests gravitational flow processes andsedimentation in alluvial fan settings, from proximal to medial fanpositions, together with a slope decrease upsection. Provenance studiesreveal sediments sourced from Precambrian to Ordovician units located tothe southwest, except for volcanic clasts in the Gmm facies that showsU/Pb age of 14.5±0.5 Ma. This new age represents the maximum depositionalage for the Conglomerado Los Patos, and it documents that deposition tookplace simultaneously during a period of increased tectonic and volcanicactivity in the area.The structural analysis of the San Antonio de los Cobres Valley and theavailable thermochronological ages, indicate active N-S main thrusts andNW-SE transpressive and locally normal faults during the middle Miocene.In this context, we interpret the Conglomerado Los Patos to representsedimentation in a small, extensional and short-lived basin associatedwith the compressional Andean setting.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Broken Foreland
dc.subject
Alluvial Sedimentation
dc.subject
Puna
dc.subject.classification
Meteorología y Ciencias Atmosféricas
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
The development of miocene extensional and short-lived basin in the Andean broken foreland: The Conglomerado Los Patos, Northwestern Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-05-09T16:15:08Z
dc.journal.volume
73
dc.journal.pagination
191-201
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: del Papa, Cecilia Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
dc.description.fil
Fil: Petrinovic, Ivan Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
dc.journal.title
Journal of South American Earth Sciences
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S089598111630325X
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.jsames.2016.12.008


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