A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina

Autores
Introcaso, Antonio; Gimenez, Mario Ernesto; Martínez, Myriam Patricia; Ruiz, Francisco
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A plastic rheology partially phenomenological model is presented to explain the isostatically compensated Andean relief formation. This model takes into account a combination of lithospheric heating with long period relaxation and successive crustal shortenings on a north section of Argentina located at 24º S latitude. The present size of the Andean root ? related to the Andes construction - was obtained by inverting regionalized Bouguer anomalies, also consistent with geoid undulations. The relief of 1520 km2 is balanced both with a thermal root of 70.63 km located at the lithospheric mantle and with an evolutionary crustal root originated by shortenings. A pretended contradiction must be noted: lateral compressive shortenings and side movings tending to squash and to widen the high relief. For better understanding the problem a linear model is first presented. Then, a nonlinear model of plastic rheology is considered with a stability coefficient depending on wodth and elevation. We have assumed that isostatic balance keeps on the whole orogenic construction. We also impose an empirical stability relationship. If this relationship does not hold,there will be an extra relief relief and therefore an extra root that will plastically flow until reaching stability.
Fil: Introcaso, Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina
Fil: Gimenez, Mario Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; Argentina
Fil: Martínez, Myriam Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; Argentina
Fil: Ruiz, Francisco. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; Argentina
Materia
ANDEAN RELIEF
CRUSTAL SHORTENING
ANDEAN ROOT
BOUGUER ANOMALIES
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:11336/197276
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/197276
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A plastic rheology phenomenological model that explains the Andes evolution in northern ArgentinaIntrocaso, AntonioGimenez, Mario ErnestoMartínez, Myriam PatriciaRuiz, FranciscoANDEAN RELIEFCRUSTAL SHORTENINGANDEAN ROOTBOUGUER ANOMALIEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1A plastic rheology partially phenomenological model is presented to explain the isostatically compensated Andean relief formation. This model takes into account a combination of lithospheric heating with long period relaxation and successive crustal shortenings on a north section of Argentina located at 24º S latitude. The present size of the Andean root ? related to the Andes construction - was obtained by inverting regionalized Bouguer anomalies, also consistent with geoid undulations. The relief of 1520 km2 is balanced both with a thermal root of 70.63 km located at the lithospheric mantle and with an evolutionary crustal root originated by shortenings. A pretended contradiction must be noted: lateral compressive shortenings and side movings tending to squash and to widen the high relief. For better understanding the problem a linear model is first presented. Then, a nonlinear model of plastic rheology is considered with a stability coefficient depending on wodth and elevation. We have assumed that isostatic balance keeps on the whole orogenic construction. We also impose an empirical stability relationship. If this relationship does not hold,there will be an extra relief relief and therefore an extra root that will plastically flow until reaching stability.Fil: Introcaso, Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; ArgentinaFil: Gimenez, Mario Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; ArgentinaFil: Martínez, Myriam Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; ArgentinaFil: Ruiz, Francisco. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; ArgentinaUniversidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Instituto de Fisiografía y Geología2012-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/197276Introcaso, Antonio; Gimenez, Mario Ernesto; Martínez, Myriam Patricia; Ruiz, Francisco; A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina; Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Instituto de Fisiografía y Geología; Boletín del Instituto de Fisiografía y Geología; 82; 1; 6-2012; 1-81666-115XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.fceia.unr.edu.ar/fisiografia/Vol82.htminfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:15:18Zoai:ri.conicet.gov.ar:11336/197276instacron: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:34982025-09-10 13:15:18.529CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina
title A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina
spellingShingle A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina
Introcaso, Antonio
ANDEAN RELIEF
CRUSTAL SHORTENING
ANDEAN ROOT
BOUGUER ANOMALIES
title_short A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina
title_full A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina
title_fullStr A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina
title_full_unstemmed A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina
title_sort A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina
dc.creator.none.fl_str_mv Introcaso, Antonio
Gimenez, Mario Ernesto
Martínez, Myriam Patricia
Ruiz, Francisco
author Introcaso, Antonio
author_facet Introcaso, Antonio
Gimenez, Mario Ernesto
Martínez, Myriam Patricia
Ruiz, Francisco
author_role author
author2 Gimenez, Mario Ernesto
Martínez, Myriam Patricia
Ruiz, Francisco
author2_role author
author
author
dc.subject.none.fl_str_mv ANDEAN RELIEF
CRUSTAL SHORTENING
ANDEAN ROOT
BOUGUER ANOMALIES
topic ANDEAN RELIEF
CRUSTAL SHORTENING
ANDEAN ROOT
BOUGUER ANOMALIES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A plastic rheology partially phenomenological model is presented to explain the isostatically compensated Andean relief formation. This model takes into account a combination of lithospheric heating with long period relaxation and successive crustal shortenings on a north section of Argentina located at 24º S latitude. The present size of the Andean root ? related to the Andes construction - was obtained by inverting regionalized Bouguer anomalies, also consistent with geoid undulations. The relief of 1520 km2 is balanced both with a thermal root of 70.63 km located at the lithospheric mantle and with an evolutionary crustal root originated by shortenings. A pretended contradiction must be noted: lateral compressive shortenings and side movings tending to squash and to widen the high relief. For better understanding the problem a linear model is first presented. Then, a nonlinear model of plastic rheology is considered with a stability coefficient depending on wodth and elevation. We have assumed that isostatic balance keeps on the whole orogenic construction. We also impose an empirical stability relationship. If this relationship does not hold,there will be an extra relief relief and therefore an extra root that will plastically flow until reaching stability.
Fil: Introcaso, Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina
Fil: Gimenez, Mario Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; Argentina
Fil: Martínez, Myriam Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; Argentina
Fil: Ruiz, Francisco. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; Argentina
description A plastic rheology partially phenomenological model is presented to explain the isostatically compensated Andean relief formation. This model takes into account a combination of lithospheric heating with long period relaxation and successive crustal shortenings on a north section of Argentina located at 24º S latitude. The present size of the Andean root ? related to the Andes construction - was obtained by inverting regionalized Bouguer anomalies, also consistent with geoid undulations. The relief of 1520 km2 is balanced both with a thermal root of 70.63 km located at the lithospheric mantle and with an evolutionary crustal root originated by shortenings. A pretended contradiction must be noted: lateral compressive shortenings and side movings tending to squash and to widen the high relief. For better understanding the problem a linear model is first presented. Then, a nonlinear model of plastic rheology is considered with a stability coefficient depending on wodth and elevation. We have assumed that isostatic balance keeps on the whole orogenic construction. We also impose an empirical stability relationship. If this relationship does not hold,there will be an extra relief relief and therefore an extra root that will plastically flow until reaching stability.
publishDate 2012
dc.date.none.fl_str_mv 2012-06
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/11336/197276
Introcaso, Antonio; Gimenez, Mario Ernesto; Martínez, Myriam Patricia; Ruiz, Francisco; A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina; Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Instituto de Fisiografía y Geología; Boletín del Instituto de Fisiografía y Geología; 82; 1; 6-2012; 1-8
1666-115X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/197276
identifier_str_mv Introcaso, Antonio; Gimenez, Mario Ernesto; Martínez, Myriam Patricia; Ruiz, Francisco; A plastic rheology phenomenological model that explains the Andes evolution in northern Argentina; Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Instituto de Fisiografía y Geología; Boletín del Instituto de Fisiografía y Geología; 82; 1; 6-2012; 1-8
1666-115X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.fceia.unr.edu.ar/fisiografia/Vol82.htm
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Instituto de Fisiografía y Geología
publisher.none.fl_str_mv Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Instituto de Fisiografía y Geología
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 12.993085

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