Fluvial deposits of the Diamante Formation as a record of the Late Cretaceous tectonic activity in the Southern Central Andes, Mendoza, Argentina

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Fil: Gómez, Ricardo. Museo de Historia Natural de San Rafael. Mendoza, Argentina

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Autores principales: Gómez, Ricardo, Tunik, Maisa Andrea, Casadio, Silvio Alberto
Lenguaje:Inglés
Publicado: Servicio Nacional de Geología y Minería 2020
Materias:
Neuquén Basin
Diamante Formation
Fluvial Systems
Detrital Modes
Andean Orogen
Acceso en línea:http://www.andeangeology.cl/index.php/revista1/article/view/V47n2-3218/pdf
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5351
http://dx.doi.org/10.5027/andgeoV47n2-3218
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Repositorio Institucional Digital de la Universidad Nacional de Río Negro (UNRN) de Universidad Nacional de Río Negro
id I65-R171-20.500.12049-5351
record_format dspace
spelling I65-R171-20.500.12049-53512025-10-02T13:33:30Z application/pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/4.0/ 2020 Fil: Gómez, Ricardo. Museo de Historia Natural de San Rafael. Mendoza, Argentina Fil: Tunik, Maisa A. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina. Fil: Casadio, Silvio A. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina. Fil: Gómez, Ricardo. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro, Argentina. Fluvial deposits of the Diamante Formation as a record of the Late Cretaceous tectonic activity in the Southern Central Andes, Mendoza, Argentina Gómez, Ricardo Tunik, Maisa Andrea Casadio, Silvio Alberto Neuquén Basin Diamante Formation Fluvial Systems Detrital Modes Andean Orogen true The Upper Cretaceous nonmarine deposits of the Neuquén Basin have an important regional exposure. These deposits are included in the Neuquén Group, a well-studied unit in both the south and central part of the basin. However, the northernmost exposed between the Laguna del Diamante and the Atuel River - assigned to the Diamante Formation - have not been studied in detail. In the studied area, the Diamante Formation corresponds to a braided fluvial system with moderate sinuosity evolving through time towards an anastomosing fluvial system. Petrographic analyses indicate that sandstones belong to feldspatic litharenites and litharenites, while the source area indicates provenance from both a recycled orogen and a transitional arc. The latter could be linked to the exhumation of the Andean orogen located to the west and to the input from the north-eastern border of the Neuquén Basin, represented by the rocks currently exposed in the San Rafael Block. On a macroscopic scale, the presence of calcareous lithic fragments in the mid and upper part of the surveyed stratigraphic section, strongly suggest an input from the west. This indicates an important change in the polarity of the basin and the presence of a deformation front located to the west of the study area in accordance to previous proposals in equivalent deposits to the south of study area. Gómez, Ricardo., Tunik, Maisa A., Casadío, Silvio A. (2020). Fluvial deposits as a record of the Late Cretaceous tectonic activity in southern Central Andes, Argentina. Servicio Nacional de Geología y Minería; Andean Geology; 47 (2); 256-274. 0718-7106 0718-7092 http://www.andeangeology.cl/index.php/revista1/article/view/V47n2-3218/pdf https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5351 http://dx.doi.org/10.5027/andgeoV47n2-3218 en 47 (2) Andean Geology Servicio Nacional de Geología y Minería
institution Universidad Nacional de Río Negro
institution_str I-65
repository_str R-171
collection Repositorio Institucional Digital de la Universidad Nacional de Río Negro (UNRN)
language Inglés
orig_language_str_mv en
topic Neuquén Basin
Diamante Formation
Fluvial Systems
Detrital Modes
Andean Orogen
spellingShingle Neuquén Basin
Diamante Formation
Fluvial Systems
Detrital Modes
Andean Orogen
Gómez, Ricardo
Tunik, Maisa Andrea
Casadio, Silvio Alberto
Fluvial deposits of the Diamante Formation as a record of the Late Cretaceous tectonic activity in the Southern Central Andes, Mendoza, Argentina
topic_facet Neuquén Basin
Diamante Formation
Fluvial Systems
Detrital Modes
Andean Orogen
description Fil: Gómez, Ricardo. Museo de Historia Natural de San Rafael. Mendoza, Argentina
author Gómez, Ricardo
Tunik, Maisa Andrea
Casadio, Silvio Alberto
author_facet Gómez, Ricardo
Tunik, Maisa Andrea
Casadio, Silvio Alberto
author_sort Gómez, Ricardo
title Fluvial deposits of the Diamante Formation as a record of the Late Cretaceous tectonic activity in the Southern Central Andes, Mendoza, Argentina
title_short Fluvial deposits of the Diamante Formation as a record of the Late Cretaceous tectonic activity in the Southern Central Andes, Mendoza, Argentina
title_full Fluvial deposits of the Diamante Formation as a record of the Late Cretaceous tectonic activity in the Southern Central Andes, Mendoza, Argentina
title_fullStr Fluvial deposits of the Diamante Formation as a record of the Late Cretaceous tectonic activity in the Southern Central Andes, Mendoza, Argentina
title_full_unstemmed Fluvial deposits of the Diamante Formation as a record of the Late Cretaceous tectonic activity in the Southern Central Andes, Mendoza, Argentina
title_sort fluvial deposits of the diamante formation as a record of the late cretaceous tectonic activity in the southern central andes, mendoza, argentina
publisher Servicio Nacional de Geología y Minería
publishDate 2020
url http://www.andeangeology.cl/index.php/revista1/article/view/V47n2-3218/pdf
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/5351
http://dx.doi.org/10.5027/andgeoV47n2-3218
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AT tunikmaisaandrea fluvialdepositsofthediamanteformationasarecordofthelatecretaceoustectonicactivityinthesoutherncentralandesmendozaargentina
AT casadiosilvioalberto fluvialdepositsofthediamanteformationasarecordofthelatecretaceoustectonicactivityinthesoutherncentralandesmendozaargentina
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