Intraplate Late Jurassic deformation and exhumation in western central Argentina: Constraints from surface data and U-Pb detrital zircon ages

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Intraplate deformation has been described in several tectonic settings and recently in western central Argentina it has been proposed to explain the complex structural patterns developed between Early Jurassic and Cretaceous times along the Huincul deformation zone. We integrate new field data and d...

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Autores principales:	Naipauer, Maximiliano, Garcia Morabito, Ezequiel, Tunik, Maísa Andrea, Rojas Vera, Emilio A., Vujovich, Graciela Irene, Ramos, Victor Alberto
Publicado:	2012
Materias:	Detrital zircons Huincul high Intraplate deformation Neuquén basin Provenance Weakness zone Argentina Central Andes Deformation zone Detrital zircon Early Jurassic Field data Field surveys Jurassic Late cretaceous Late Permian Late Triassic Oriented growth Structural feature Structural pattern Surface data Tectonic settings Zircon age Lead Stratigraphy Zircon Deformation Cretaceous deformation intraplate process provenance tectonic setting uranium-lead dating zircon Neuquen Basin
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00401951_v524-525_n_p59_Naipauer http://hdl.handle.net/20.500.12110/paper_00401951_v524-525_n_p59_Naipauer
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00401951_v524-525_n_p59_Naipauer
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spelling	paper:paper_00401951_v524-525_n_p59_Naipauer2023-06-08T15:03:57Z Intraplate Late Jurassic deformation and exhumation in western central Argentina: Constraints from surface data and U-Pb detrital zircon ages Naipauer, Maximiliano Garcia Morabito, Ezequiel Tunik, Maísa Andrea Rojas Vera, Emilio A. Vujovich, Graciela Irene Ramos, Victor Alberto Detrital zircons Huincul high Intraplate deformation Neuquén basin Provenance Weakness zone Argentina Central Andes Deformation zone Detrital zircon Early Jurassic Field data Field surveys Huincul high Jurassic Late cretaceous Late Permian Late Triassic Oriented growth Provenance Structural feature Structural pattern Surface data Tectonic settings Weakness zone Zircon age Lead Stratigraphy Zircon Deformation Cretaceous deformation intraplate process Jurassic provenance tectonic setting uranium-lead dating zircon Argentina Neuquen Basin Intraplate deformation has been described in several tectonic settings and recently in western central Argentina it has been proposed to explain the complex structural patterns developed between Early Jurassic and Cretaceous times along the Huincul deformation zone. We integrate new field data and detrital zircon ages of the exposed portion of the Huincul High that permit us to quantify the significance of this intraplate deformation in the relief generation. A stratigraphic and structural record of a Jurassic pulsed contractional deformation is derived from field surveys. It is documented through multiple unconformities and growth geometries linked to NE and E-W oriented growth structures extensively developed across the studied region. The pattern of zircon ages from the analyzed Late Jurassic successions indicates that they have a clear provenance from sources located along the Huincul deformation zone. The Tordillo Formation outcrops north of the Huincul High have a dominant provenance from the Andean Jurassic arc; while the Quebrada del Sapo Formation, south of the Huincul High, has a significant input from Late Triassic (220-200. Ma) and Late Permian (280-260. Ma) sources of the axial exposures of the Huincul High. Surface data, combined with detrital zircon ages proved to be a powerful method to confirm the presence of an ancient positive element developed within the southern Neuquén basin. Its genesis falls within the early history of the Huincul deformation zone, where several structural features indicate pulses of growth since Early Jurassic times prior to the main Andean contractional cycle that started in the Late Cretaceous. Therefore, these data document for the first time the importance of the early contractional phases in the relief construction in the southern Central Andes, reinforcing previous hypotheses about pre-Andean intraplate deformation concentrated along this extensive east-west oriented basement weakness zone. © 2011. Fil:Naipauer, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:García Morabito, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tunik, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rojas Vera, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vujovich, G.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ramos, V.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00401951_v524-525_n_p59_Naipauer http://hdl.handle.net/20.500.12110/paper_00401951_v524-525_n_p59_Naipauer
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Detrital zircons Huincul high Intraplate deformation Neuquén basin Provenance Weakness zone Argentina Central Andes Deformation zone Detrital zircon Early Jurassic Field data Field surveys Huincul high Jurassic Late cretaceous Late Permian Late Triassic Oriented growth Provenance Structural feature Structural pattern Surface data Tectonic settings Weakness zone Zircon age Lead Stratigraphy Zircon Deformation Cretaceous deformation intraplate process Jurassic provenance tectonic setting uranium-lead dating zircon Argentina Neuquen Basin
spellingShingle	Detrital zircons Huincul high Intraplate deformation Neuquén basin Provenance Weakness zone Argentina Central Andes Deformation zone Detrital zircon Early Jurassic Field data Field surveys Huincul high Jurassic Late cretaceous Late Permian Late Triassic Oriented growth Provenance Structural feature Structural pattern Surface data Tectonic settings Weakness zone Zircon age Lead Stratigraphy Zircon Deformation Cretaceous deformation intraplate process Jurassic provenance tectonic setting uranium-lead dating zircon Argentina Neuquen Basin Naipauer, Maximiliano Garcia Morabito, Ezequiel Tunik, Maísa Andrea Rojas Vera, Emilio A. Vujovich, Graciela Irene Ramos, Victor Alberto Intraplate Late Jurassic deformation and exhumation in western central Argentina: Constraints from surface data and U-Pb detrital zircon ages
topic_facet	Detrital zircons Huincul high Intraplate deformation Neuquén basin Provenance Weakness zone Argentina Central Andes Deformation zone Detrital zircon Early Jurassic Field data Field surveys Huincul high Jurassic Late cretaceous Late Permian Late Triassic Oriented growth Provenance Structural feature Structural pattern Surface data Tectonic settings Weakness zone Zircon age Lead Stratigraphy Zircon Deformation Cretaceous deformation intraplate process Jurassic provenance tectonic setting uranium-lead dating zircon Argentina Neuquen Basin
description	Intraplate deformation has been described in several tectonic settings and recently in western central Argentina it has been proposed to explain the complex structural patterns developed between Early Jurassic and Cretaceous times along the Huincul deformation zone. We integrate new field data and detrital zircon ages of the exposed portion of the Huincul High that permit us to quantify the significance of this intraplate deformation in the relief generation. A stratigraphic and structural record of a Jurassic pulsed contractional deformation is derived from field surveys. It is documented through multiple unconformities and growth geometries linked to NE and E-W oriented growth structures extensively developed across the studied region. The pattern of zircon ages from the analyzed Late Jurassic successions indicates that they have a clear provenance from sources located along the Huincul deformation zone. The Tordillo Formation outcrops north of the Huincul High have a dominant provenance from the Andean Jurassic arc; while the Quebrada del Sapo Formation, south of the Huincul High, has a significant input from Late Triassic (220-200. Ma) and Late Permian (280-260. Ma) sources of the axial exposures of the Huincul High. Surface data, combined with detrital zircon ages proved to be a powerful method to confirm the presence of an ancient positive element developed within the southern Neuquén basin. Its genesis falls within the early history of the Huincul deformation zone, where several structural features indicate pulses of growth since Early Jurassic times prior to the main Andean contractional cycle that started in the Late Cretaceous. Therefore, these data document for the first time the importance of the early contractional phases in the relief construction in the southern Central Andes, reinforcing previous hypotheses about pre-Andean intraplate deformation concentrated along this extensive east-west oriented basement weakness zone. © 2011.
author	Naipauer, Maximiliano Garcia Morabito, Ezequiel Tunik, Maísa Andrea Rojas Vera, Emilio A. Vujovich, Graciela Irene Ramos, Victor Alberto
author_facet	Naipauer, Maximiliano Garcia Morabito, Ezequiel Tunik, Maísa Andrea Rojas Vera, Emilio A. Vujovich, Graciela Irene Ramos, Victor Alberto
author_sort	Naipauer, Maximiliano
title	Intraplate Late Jurassic deformation and exhumation in western central Argentina: Constraints from surface data and U-Pb detrital zircon ages
title_short	Intraplate Late Jurassic deformation and exhumation in western central Argentina: Constraints from surface data and U-Pb detrital zircon ages
title_full	Intraplate Late Jurassic deformation and exhumation in western central Argentina: Constraints from surface data and U-Pb detrital zircon ages
title_fullStr	Intraplate Late Jurassic deformation and exhumation in western central Argentina: Constraints from surface data and U-Pb detrital zircon ages
title_full_unstemmed	Intraplate Late Jurassic deformation and exhumation in western central Argentina: Constraints from surface data and U-Pb detrital zircon ages
title_sort	intraplate late jurassic deformation and exhumation in western central argentina: constraints from surface data and u-pb detrital zircon ages
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00401951_v524-525_n_p59_Naipauer http://hdl.handle.net/20.500.12110/paper_00401951_v524-525_n_p59_Naipauer
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_version_	1768545639104249856

Intraplate Late Jurassic deformation and exhumation in western central Argentina: Constraints from surface data and U-Pb detrital zircon ages

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