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dc.contributor.author
Payrola Bosio, Patricio Augusto
dc.contributor.author
Powell, Jaime Eduardo
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del Papa, Cecilia Eugenia
dc.contributor.author
Hongn, Fernando Daniel
dc.date.available
2018-07-24T19:28:34Z
dc.date.issued
2009-08
dc.identifier.citation
Payrola Bosio, Patricio Augusto; Powell, Jaime Eduardo; del Papa, Cecilia Eugenia; Hongn, Fernando Daniel; Middle Eocene deformation-sedimentation in the Luracatao Valley: Tracking the beginning of the foreland basin of northwestern Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 28; 2; 8-2009; 142-154
dc.identifier.issn
0895-9811
dc.identifier.uri
http://hdl.handle.net/11336/52996
dc.description.abstract
The Andean foreland basin overlaps the Cretaceous-Paleogene Salta rift basin in northwestern Argentina. Knowledge of the relationship between rift and foreland basins is key to understanding the initial stages of foreland basin development related to Andean shortening. We present a new stratigraphic scheme for the Luracatao Valley, revealing that the Quebrada de los Colorados Formation (Payogastilla Group) lies over the Santa Bárbara Subgroup (Salta Group) through an erosional unconformity that turns into an angular unconformity close to folds and faults recorded in the Santa Bárbara Subgroup. The base of the Quebrada de los Colorados Formation shows growth strata along the west frontal limb of an anticline with Santa Bárbara units in its core. The finding of a mammalian fossil at the base of the Quebrada de los Colorados Formation allows us to assign a Middle-Upper Eocene age to the sedimentation; therefore, the time elapsed between the deposition of the final postrift strata and the beginning of Andean sedimentation was brief and constrained to the Lower-Middle Eocene. This data indicates that the Eocene deformation phase described in other portions of the Puna-Cordillera Oriental transition (e.g., the northern Calchaquí Valley and Aguilar range) is also present in the Luracatao Valley, offering new tools for interpreting the ages and distributions of the initial episodes of sedimentation and deformation related to the Andean shortening. Thus, the Luracatao Valley provides new evidence for tracking the distribution of the Paleogene deformation in northwestern Argentina.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Eoceno Medio
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Estratos de Crecimiento
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FormaciÓN Quebrada de Los Colorados
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Growth Strata
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Inicio Cuenca de AntepaÍS Andina
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Initial Andean Foreland Basin
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Middle Eocene
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No-Argentina
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Nw-Argentina
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Quebrada de Los Colorados Formation
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Meteorología y Ciencias Atmosféricas
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Middle Eocene deformation-sedimentation in the Luracatao Valley: Tracking the beginning of the foreland basin of 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
2018-07-23T17:08:59Z
dc.journal.volume
28
dc.journal.number
2
dc.journal.pagination
142-154
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Payrola Bosio, Patricio Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Instituto Geonorte; Argentina
dc.description.fil
Fil: Powell, Jaime Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina
dc.description.fil
Fil: del Papa, Cecilia Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Instituto Geonorte; Argentina
dc.description.fil
Fil: Hongn, Fernando Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Instituto Geonorte; Argentina
dc.journal.title
Journal of South American Earth Sciences
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jsames.2009.06.002
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981109000844
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