Lnfluence of the Triassic-Jurassic rift structures on the deformation style of the Aconcagua and Maragüe fold and thrust belts, Mendoza

The Aconcagua and Malargüe fold and thrust belts developed in the Cordillera Principal, which between 32° 34° and 34°-36° S latitude respectively, show a complex interaction between the sedimentary cover and the basement as a result of the existence of Triassic-Jurassic rift-related normal faults of...

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Autores principales: Giambiagi, L., Alvarez, P.P., Bechis, F., Tunik, M.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00044822_v60_n4_p662_Giambiagi
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spelling todo:paper_00044822_v60_n4_p662_Giambiagi2023-10-03T13:58:08Z Lnfluence of the Triassic-Jurassic rift structures on the deformation style of the Aconcagua and Maragüe fold and thrust belts, Mendoza Giambiagi, L. Alvarez, P.P. Bechis, F. Tunik, M. Aconcagua Andean deformation Fold and thrust belt Jurassic Malargúe Neuquén Basin chronology deformation mechanism fault fold and thrust belt inversion tectonics Jurassic normal fault rift zone tectonic evolution thin skinned tectonics Triassic Aconcagua Andes Argentina Malargue Mendoza Neuquen South America The Aconcagua and Malargüe fold and thrust belts developed in the Cordillera Principal, which between 32° 34° and 34°-36° S latitude respectively, show a complex interaction between the sedimentary cover and the basement as a result of the existence of Triassic-Jurassic rift-related normal faults of the northern part of the Neuquén basin. Structural studies, together with chronological analysis of the deformation in the thin-skinned and thick-skinned zones, indicate that the evolution of both belts was controlled by the presence of NNW-trending border faults of the Atuel, Nieves Negras - Alvarado and Yeguas Muertas depocentres of the Neuquén basin. In this study we analyze three possible mechanisms of interaction between the thin-skinned and thick-skinned deformation. For the Aconcagua FTB, we propose that the pre-existing normal faults controlled the location of ramps within the basement. For the southernmost part of the Aconcagua FTB and the northern part of the Malargüe FTB we propose a mechanism of tectonic inversion of rift-related faults, together with short-cut faults, which propagated into the sedimentary cover generation the thin-skinned deformational area. © 2005 Asociación Geológica Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v60_n4_p662_Giambiagi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Aconcagua
Andean deformation
Fold and thrust belt
Jurassic
Malargúe
Neuquén Basin
chronology
deformation mechanism
fault
fold and thrust belt
inversion tectonics
Jurassic
normal fault
rift zone
tectonic evolution
thin skinned tectonics
Triassic
Aconcagua
Andes
Argentina
Malargue
Mendoza
Neuquen
South America
spellingShingle Aconcagua
Andean deformation
Fold and thrust belt
Jurassic
Malargúe
Neuquén Basin
chronology
deformation mechanism
fault
fold and thrust belt
inversion tectonics
Jurassic
normal fault
rift zone
tectonic evolution
thin skinned tectonics
Triassic
Aconcagua
Andes
Argentina
Malargue
Mendoza
Neuquen
South America
Giambiagi, L.
Alvarez, P.P.
Bechis, F.
Tunik, M.
Lnfluence of the Triassic-Jurassic rift structures on the deformation style of the Aconcagua and Maragüe fold and thrust belts, Mendoza
topic_facet Aconcagua
Andean deformation
Fold and thrust belt
Jurassic
Malargúe
Neuquén Basin
chronology
deformation mechanism
fault
fold and thrust belt
inversion tectonics
Jurassic
normal fault
rift zone
tectonic evolution
thin skinned tectonics
Triassic
Aconcagua
Andes
Argentina
Malargue
Mendoza
Neuquen
South America
description The Aconcagua and Malargüe fold and thrust belts developed in the Cordillera Principal, which between 32° 34° and 34°-36° S latitude respectively, show a complex interaction between the sedimentary cover and the basement as a result of the existence of Triassic-Jurassic rift-related normal faults of the northern part of the Neuquén basin. Structural studies, together with chronological analysis of the deformation in the thin-skinned and thick-skinned zones, indicate that the evolution of both belts was controlled by the presence of NNW-trending border faults of the Atuel, Nieves Negras - Alvarado and Yeguas Muertas depocentres of the Neuquén basin. In this study we analyze three possible mechanisms of interaction between the thin-skinned and thick-skinned deformation. For the Aconcagua FTB, we propose that the pre-existing normal faults controlled the location of ramps within the basement. For the southernmost part of the Aconcagua FTB and the northern part of the Malargüe FTB we propose a mechanism of tectonic inversion of rift-related faults, together with short-cut faults, which propagated into the sedimentary cover generation the thin-skinned deformational area. © 2005 Asociación Geológica Argentina.
format JOUR
author Giambiagi, L.
Alvarez, P.P.
Bechis, F.
Tunik, M.
author_facet Giambiagi, L.
Alvarez, P.P.
Bechis, F.
Tunik, M.
author_sort Giambiagi, L.
title Lnfluence of the Triassic-Jurassic rift structures on the deformation style of the Aconcagua and Maragüe fold and thrust belts, Mendoza
title_short Lnfluence of the Triassic-Jurassic rift structures on the deformation style of the Aconcagua and Maragüe fold and thrust belts, Mendoza
title_full Lnfluence of the Triassic-Jurassic rift structures on the deformation style of the Aconcagua and Maragüe fold and thrust belts, Mendoza
title_fullStr Lnfluence of the Triassic-Jurassic rift structures on the deformation style of the Aconcagua and Maragüe fold and thrust belts, Mendoza
title_full_unstemmed Lnfluence of the Triassic-Jurassic rift structures on the deformation style of the Aconcagua and Maragüe fold and thrust belts, Mendoza
title_sort lnfluence of the triassic-jurassic rift structures on the deformation style of the aconcagua and maragüe fold and thrust belts, mendoza
url http://hdl.handle.net/20.500.12110/paper_00044822_v60_n4_p662_Giambiagi
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AT bechisf lnfluenceofthetriassicjurassicriftstructuresonthedeformationstyleoftheaconcaguaandmaraguefoldandthrustbeltsmendoza
AT tunikm lnfluenceofthetriassicjurassicriftstructuresonthedeformationstyleoftheaconcaguaandmaraguefoldandthrustbeltsmendoza
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