The intersenonian movement of groeber in northern neuquén and southern mendoza: Bases of the first andean orogeny

After many years of observations and long field trips in Neuquén and Mendoza provinces, Groeber set the bases of the first phase of uplift of the Andean Cordillera, which he called by the name of Intersenonian Movement. Far from losing their validity, these movements were ratified and complimented b...

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Detalles Bibliográficos
Autores principales:	Fennell, L.M., Naipauer, M., Folguera, A.
Formato:	JOUR
Materias:	Deformation Exhumation Growth strata Late cretaceous Provenance deformation exhumation foreland basin mountain region orogeny provenance sedimentation Senonian tectonic evolution tectonic setting uplift Andes Argentina Mendoza Neuquen Orogenia
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00044822_v74_n1_p59_Fennell
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00044822_v74_n1_p59_Fennell
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spelling	todo:paper_00044822_v74_n1_p59_Fennell2023-10-03T13:59:16Z The intersenonian movement of groeber in northern neuquén and southern mendoza: Bases of the first andean orogeny Fennell, L.M. Naipauer, M. Folguera, A. Deformation Exhumation Growth strata Late cretaceous Provenance deformation exhumation foreland basin mountain region orogeny provenance sedimentation Senonian tectonic evolution tectonic setting uplift Andes Argentina Mendoza Neuquen Orogenia After many years of observations and long field trips in Neuquén and Mendoza provinces, Groeber set the bases of the first phase of uplift of the Andean Cordillera, which he called by the name of Intersenonian Movement. Far from losing their validity, these movements were ratified and complimented by different authors that visited the area applying diverse methodologies. However, Groeber underestimated the intensity of these movements in northern Neuquén and southern Mendoza since he didn’t take into account synorogenic deposition, a concept defined many decades later. Through the identification of growth strata and synsedimentary deformation in the Neuquén Group, first Andean foreland basin, the area affected by this deformational phase was delimited more accurately, and its onset has been constrained in the Cenomanian (ca. 100 Ma). Moreover, a solution for Groeber’s nomenclature problem is proposed, where the “capas del Ranquil” in Mendoza had to be assigned within the Diamantiano, equivalent to the Rayoso Formation in Neuquén. Due to the lack of characteristic fossils to perform a comparison, the maximum age of sedimentation and the U-Pb age pattern from detrital zircons present a useful tool to establish the correlation of the Ranquilense in Mendoza with the Neuquén Group in Neuquén, and by doing this, avoid using the denomination of Diamante Formation for these deposits, at least in southern Mendoza. © 2017, Asociacion Geologica Argentina. All rights reserved. Fil:Naipauer, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Folguera, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v74_n1_p59_Fennell
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Deformation Exhumation Growth strata Late cretaceous Provenance deformation exhumation foreland basin mountain region orogeny provenance sedimentation Senonian tectonic evolution tectonic setting uplift Andes Argentina Mendoza Neuquen Orogenia
spellingShingle	Deformation Exhumation Growth strata Late cretaceous Provenance deformation exhumation foreland basin mountain region orogeny provenance sedimentation Senonian tectonic evolution tectonic setting uplift Andes Argentina Mendoza Neuquen Orogenia Fennell, L.M. Naipauer, M. Folguera, A. The intersenonian movement of groeber in northern neuquén and southern mendoza: Bases of the first andean orogeny
topic_facet	Deformation Exhumation Growth strata Late cretaceous Provenance deformation exhumation foreland basin mountain region orogeny provenance sedimentation Senonian tectonic evolution tectonic setting uplift Andes Argentina Mendoza Neuquen Orogenia
description	After many years of observations and long field trips in Neuquén and Mendoza provinces, Groeber set the bases of the first phase of uplift of the Andean Cordillera, which he called by the name of Intersenonian Movement. Far from losing their validity, these movements were ratified and complimented by different authors that visited the area applying diverse methodologies. However, Groeber underestimated the intensity of these movements in northern Neuquén and southern Mendoza since he didn’t take into account synorogenic deposition, a concept defined many decades later. Through the identification of growth strata and synsedimentary deformation in the Neuquén Group, first Andean foreland basin, the area affected by this deformational phase was delimited more accurately, and its onset has been constrained in the Cenomanian (ca. 100 Ma). Moreover, a solution for Groeber’s nomenclature problem is proposed, where the “capas del Ranquil” in Mendoza had to be assigned within the Diamantiano, equivalent to the Rayoso Formation in Neuquén. Due to the lack of characteristic fossils to perform a comparison, the maximum age of sedimentation and the U-Pb age pattern from detrital zircons present a useful tool to establish the correlation of the Ranquilense in Mendoza with the Neuquén Group in Neuquén, and by doing this, avoid using the denomination of Diamante Formation for these deposits, at least in southern Mendoza. © 2017, Asociacion Geologica Argentina. All rights reserved.
format	JOUR
author	Fennell, L.M. Naipauer, M. Folguera, A.
author_facet	Fennell, L.M. Naipauer, M. Folguera, A.
author_sort	Fennell, L.M.
title	The intersenonian movement of groeber in northern neuquén and southern mendoza: Bases of the first andean orogeny
title_short	The intersenonian movement of groeber in northern neuquén and southern mendoza: Bases of the first andean orogeny
title_full	The intersenonian movement of groeber in northern neuquén and southern mendoza: Bases of the first andean orogeny
title_fullStr	The intersenonian movement of groeber in northern neuquén and southern mendoza: Bases of the first andean orogeny
title_full_unstemmed	The intersenonian movement of groeber in northern neuquén and southern mendoza: Bases of the first andean orogeny
title_sort	intersenonian movement of groeber in northern neuquén and southern mendoza: bases of the first andean orogeny
url	http://hdl.handle.net/20.500.12110/paper_00044822_v74_n1_p59_Fennell
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The intersenonian movement of groeber in northern neuquén and southern mendoza: Bases of the first andean orogeny

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