Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina

Autores
Gutierrez, Adolfo Antonio; Mon, Ricardo; Cisterna, Clara Eugenia; Altenberger, Uwe; Arnous, Ahmad
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Investigations into the Andean orocline revealed a counterclockwise rotation of about 37° in the north and a clockwise rotation of about 29° in the south. This rotation would have started in the Eocene because the Nazca and South American plates converged. The transition zone between the Puna and the Sierras Pampeanas has a clockwise rotation pattern. Our new data show that the NE convergence of the Nazca and South American plates caused the counterclockwise rotation around the NW end of the Sierras Pampeanas. The temperature rise during a magmatic activity at 13 Ma would have favored a counterclockwise rotation of the mountain blocks of about 20° on a detachment zone within 10 to 15 km of depth. These range rotations generated local stress tensors trending NE and NW, facilitating the development of valleys, basins, mineralized dikes, mineral deposits, and alluvial fans separated from their origin. The Atajo fault shows both ductile and brittle characteristics. A mylonitic belt from the Sierra de Aconquija was juxtaposed on the rocks of the Ovejería Block and the Farallón Negro Volcanic Complex by reverse vertical displacement, and a dextral horizontal component of displacement resulted in curvatures that gave rise to pull-apart basins and step over features. The Santa Maria Valley, Campo del Arenal, Hualfín Valley, and Pipanaco salt flat most likely constituted a vast early Miocene basin rarely interrupted by low feature relief.
Fil: Gutierrez, Adolfo Antonio. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina
Fil: Mon, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina
Fil: Cisterna, Clara Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina
Fil: Altenberger, Uwe. Universitat Potsdam; Alemania
Fil: Arnous, Ahmad. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
NEOTECTONIC
COUNTERCLOCKWISE ROTATION
ANDES
SIERRAS PAMPEANAS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/222756
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, ArgentinaGutierrez, Adolfo AntonioMon, RicardoCisterna, Clara EugeniaAltenberger, UweArnous, AhmadNEOTECTONICCOUNTERCLOCKWISE ROTATIONANDESSIERRAS PAMPEANAShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Investigations into the Andean orocline revealed a counterclockwise rotation of about 37° in the north and a clockwise rotation of about 29° in the south. This rotation would have started in the Eocene because the Nazca and South American plates converged. The transition zone between the Puna and the Sierras Pampeanas has a clockwise rotation pattern. Our new data show that the NE convergence of the Nazca and South American plates caused the counterclockwise rotation around the NW end of the Sierras Pampeanas. The temperature rise during a magmatic activity at 13 Ma would have favored a counterclockwise rotation of the mountain blocks of about 20° on a detachment zone within 10 to 15 km of depth. These range rotations generated local stress tensors trending NE and NW, facilitating the development of valleys, basins, mineralized dikes, mineral deposits, and alluvial fans separated from their origin. The Atajo fault shows both ductile and brittle characteristics. A mylonitic belt from the Sierra de Aconquija was juxtaposed on the rocks of the Ovejería Block and the Farallón Negro Volcanic Complex by reverse vertical displacement, and a dextral horizontal component of displacement resulted in curvatures that gave rise to pull-apart basins and step over features. The Santa Maria Valley, Campo del Arenal, Hualfín Valley, and Pipanaco salt flat most likely constituted a vast early Miocene basin rarely interrupted by low feature relief.Fil: Gutierrez, Adolfo Antonio. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; ArgentinaFil: Mon, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; ArgentinaFil: Cisterna, Clara Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; ArgentinaFil: Altenberger, Uwe. Universitat Potsdam; AlemaniaFil: Arnous, Ahmad. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaScientific Research Publishing Inc.2023-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/222756Gutierrez, Adolfo Antonio; Mon, Ricardo; Cisterna, Clara Eugenia; Altenberger, Uwe; Arnous, Ahmad; Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina; Scientific Research Publishing Inc.; Open Journal of Geology; 13; 05; 5-2023; 345-3832161-7589CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.4236/ojg.2023.135018info:eu-repo/semantics/altIdentifier/url/https://www.scirp.org/journal/paperinformation?paperid=125255info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:56:24Zoai:ri.conicet.gov.ar:11336/222756instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:56:24.499CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina
title Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina
spellingShingle Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina
Gutierrez, Adolfo Antonio
NEOTECTONIC
COUNTERCLOCKWISE ROTATION
ANDES
SIERRAS PAMPEANAS
title_short Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina
title_full Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina
title_fullStr Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina
title_full_unstemmed Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina
title_sort Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina
dc.creator.none.fl_str_mv Gutierrez, Adolfo Antonio
Mon, Ricardo
Cisterna, Clara Eugenia
Altenberger, Uwe
Arnous, Ahmad
author Gutierrez, Adolfo Antonio
author_facet Gutierrez, Adolfo Antonio
Mon, Ricardo
Cisterna, Clara Eugenia
Altenberger, Uwe
Arnous, Ahmad
author_role author
author2 Mon, Ricardo
Cisterna, Clara Eugenia
Altenberger, Uwe
Arnous, Ahmad
author2_role author
author
author
author
dc.subject.none.fl_str_mv NEOTECTONIC
COUNTERCLOCKWISE ROTATION
ANDES
SIERRAS PAMPEANAS
topic NEOTECTONIC
COUNTERCLOCKWISE ROTATION
ANDES
SIERRAS PAMPEANAS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Investigations into the Andean orocline revealed a counterclockwise rotation of about 37° in the north and a clockwise rotation of about 29° in the south. This rotation would have started in the Eocene because the Nazca and South American plates converged. The transition zone between the Puna and the Sierras Pampeanas has a clockwise rotation pattern. Our new data show that the NE convergence of the Nazca and South American plates caused the counterclockwise rotation around the NW end of the Sierras Pampeanas. The temperature rise during a magmatic activity at 13 Ma would have favored a counterclockwise rotation of the mountain blocks of about 20° on a detachment zone within 10 to 15 km of depth. These range rotations generated local stress tensors trending NE and NW, facilitating the development of valleys, basins, mineralized dikes, mineral deposits, and alluvial fans separated from their origin. The Atajo fault shows both ductile and brittle characteristics. A mylonitic belt from the Sierra de Aconquija was juxtaposed on the rocks of the Ovejería Block and the Farallón Negro Volcanic Complex by reverse vertical displacement, and a dextral horizontal component of displacement resulted in curvatures that gave rise to pull-apart basins and step over features. The Santa Maria Valley, Campo del Arenal, Hualfín Valley, and Pipanaco salt flat most likely constituted a vast early Miocene basin rarely interrupted by low feature relief.
Fil: Gutierrez, Adolfo Antonio. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina
Fil: Mon, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina
Fil: Cisterna, Clara Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina
Fil: Altenberger, Uwe. Universitat Potsdam; Alemania
Fil: Arnous, Ahmad. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Investigations into the Andean orocline revealed a counterclockwise rotation of about 37° in the north and a clockwise rotation of about 29° in the south. This rotation would have started in the Eocene because the Nazca and South American plates converged. The transition zone between the Puna and the Sierras Pampeanas has a clockwise rotation pattern. Our new data show that the NE convergence of the Nazca and South American plates caused the counterclockwise rotation around the NW end of the Sierras Pampeanas. The temperature rise during a magmatic activity at 13 Ma would have favored a counterclockwise rotation of the mountain blocks of about 20° on a detachment zone within 10 to 15 km of depth. These range rotations generated local stress tensors trending NE and NW, facilitating the development of valleys, basins, mineralized dikes, mineral deposits, and alluvial fans separated from their origin. The Atajo fault shows both ductile and brittle characteristics. A mylonitic belt from the Sierra de Aconquija was juxtaposed on the rocks of the Ovejería Block and the Farallón Negro Volcanic Complex by reverse vertical displacement, and a dextral horizontal component of displacement resulted in curvatures that gave rise to pull-apart basins and step over features. The Santa Maria Valley, Campo del Arenal, Hualfín Valley, and Pipanaco salt flat most likely constituted a vast early Miocene basin rarely interrupted by low feature relief.
publishDate 2023
dc.date.none.fl_str_mv 2023-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/222756
Gutierrez, Adolfo Antonio; Mon, Ricardo; Cisterna, Clara Eugenia; Altenberger, Uwe; Arnous, Ahmad; Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina; Scientific Research Publishing Inc.; Open Journal of Geology; 13; 05; 5-2023; 345-383
2161-7589
CONICET Digital
CONICET
url http://hdl.handle.net/11336/222756
identifier_str_mv Gutierrez, Adolfo Antonio; Mon, Ricardo; Cisterna, Clara Eugenia; Altenberger, Uwe; Arnous, Ahmad; Cenozoic Age Counterclockwise Rotation in the Northwest End of the Sierras Pampeanas, Argentina; Scientific Research Publishing Inc.; Open Journal of Geology; 13; 05; 5-2023; 345-383
2161-7589
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.4236/ojg.2023.135018
info:eu-repo/semantics/altIdentifier/url/https://www.scirp.org/journal/paperinformation?paperid=125255
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Scientific Research Publishing Inc.
publisher.none.fl_str_mv Scientific Research Publishing Inc.
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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