Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza

Autores
Araujo, Vanesa Soledad; Sánchez, Natalia Paola; Frisicale, María Cristina; Turienzo, Martín; Lebinson, Fernando Oscar; Dimieri, Luis Vicente
Año de publicación
2019
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
IT is considered that the rheological contrast between strata and tabular igneous bodies exert an important control on the emplacement and shape of magmatic bodies (Menand, 2011; Thomson and Schofield, 2008). Field observations and laboratory experiments regarding the location of sills and laccoliths indicate that some of these are formed when the feed channel reaches a layer whose rigidity does not allow to progress, thereby causing the lateral spread of magma (Kavanagh et al., 2006). There are several publications studying emplacement models of these bodies in compressive environments (Galland et al., 2007; Montanari et al., 2010; Menand, 2011; Ferre et al., 2012; Walker et al., 2016) which reveal that the bodies are constructed from amalgamation of successive pulses of tabular bodies, that are emplaced through fault systems under compressive stresses.The Malargüe FTB is a suitable place to study the mode of emplacement of neogene shallow intrusives likes sills, dykes and laccoliths. Figure 1 shows the distribution of the main bodies exposed in our study area.In the NE area (Fig. 1) the Laguna Amarga body and other shallow intrusive rocks are emplaced over a wide area coincident with a backthrusts system affecting basement rocks located in the hanging wall of the Carrizalito thrust (Turienzo et al., 2012). This relationship was also observed in seismic lines and exploration wells where it is possible to observed sills intruded in Late Jurassic-Early Cretaceous rocks at the footwall of the thin-skinned Sosneado and Mesón thrusts. This implies that the feed channels of intrusive bodies must be deeper than those thrusts. Therefore we consider that the emplacement of the Laguna Amarga laccolithic body may be associated with the underneath backthrust system generated in the hangingwall of the thick-skinned Carrizalito thrust (Araujo et al. 2013, 2019).To the south of the Atuel river (Fig. 1) the Cerro Chivato body seems to be emplaced benefitting from the weakness of the Auquilco Formation gypsum. In its eastern edge the body shows structural complexity in the contact with La Manga and Lotena Formations, disrupting and folding the strata. In the western side is possible to recognize the Tordillo Formation clearly resting on the intrusive in a concordantmanner. We interpret that this intrusive could havebeen emplaced through a north-south thrust fault within the Auquilco gypsum. This fault can be observed within the strata located of the intrusive, verging to the east.
Fil: Araujo, Vanesa Soledad. Universidad Nacional del Sur. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Sánchez, Natalia Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Frisicale, María Cristina. Universidad Nacional del Sur. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Turienzo, Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Lebinson, Fernando Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Dimieri, Luis Vicente. Universidad Nacional del Sur. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
LASI VI The physical geology of subvolcanic systems: laccoliths, sills and dykes
Malargüe
Argentina
Organizing committee of Lasi6
Materia
Shallow igneous bodies
Emplacement
Cordillera Principal.
Neuquén Basin
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:11336/239936
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, MendozaAraujo, Vanesa SoledadSánchez, Natalia PaolaFrisicale, María CristinaTurienzo, MartínLebinson, Fernando OscarDimieri, Luis VicenteShallow igneous bodiesEmplacementCordillera Principal.Neuquén Basinhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1IT is considered that the rheological contrast between strata and tabular igneous bodies exert an important control on the emplacement and shape of magmatic bodies (Menand, 2011; Thomson and Schofield, 2008). Field observations and laboratory experiments regarding the location of sills and laccoliths indicate that some of these are formed when the feed channel reaches a layer whose rigidity does not allow to progress, thereby causing the lateral spread of magma (Kavanagh et al., 2006). There are several publications studying emplacement models of these bodies in compressive environments (Galland et al., 2007; Montanari et al., 2010; Menand, 2011; Ferre et al., 2012; Walker et al., 2016) which reveal that the bodies are constructed from amalgamation of successive pulses of tabular bodies, that are emplaced through fault systems under compressive stresses.The Malargüe FTB is a suitable place to study the mode of emplacement of neogene shallow intrusives likes sills, dykes and laccoliths. Figure 1 shows the distribution of the main bodies exposed in our study area.In the NE area (Fig. 1) the Laguna Amarga body and other shallow intrusive rocks are emplaced over a wide area coincident with a backthrusts system affecting basement rocks located in the hanging wall of the Carrizalito thrust (Turienzo et al., 2012). This relationship was also observed in seismic lines and exploration wells where it is possible to observed sills intruded in Late Jurassic-Early Cretaceous rocks at the footwall of the thin-skinned Sosneado and Mesón thrusts. This implies that the feed channels of intrusive bodies must be deeper than those thrusts. Therefore we consider that the emplacement of the Laguna Amarga laccolithic body may be associated with the underneath backthrust system generated in the hangingwall of the thick-skinned Carrizalito thrust (Araujo et al. 2013, 2019).To the south of the Atuel river (Fig. 1) the Cerro Chivato body seems to be emplaced benefitting from the weakness of the Auquilco Formation gypsum. In its eastern edge the body shows structural complexity in the contact with La Manga and Lotena Formations, disrupting and folding the strata. In the western side is possible to recognize the Tordillo Formation clearly resting on the intrusive in a concordantmanner. We interpret that this intrusive could havebeen emplaced through a north-south thrust fault within the Auquilco gypsum. This fault can be observed within the strata located of the intrusive, verging to the east.Fil: Araujo, Vanesa Soledad. Universidad Nacional del Sur. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; ArgentinaFil: Sánchez, Natalia Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; ArgentinaFil: Frisicale, María Cristina. Universidad Nacional del Sur. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; ArgentinaFil: Turienzo, Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; ArgentinaFil: Lebinson, Fernando Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; ArgentinaFil: Dimieri, Luis Vicente. Universidad Nacional del Sur. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; ArgentinaLASI VI The physical geology of subvolcanic systems: laccoliths, sills and dykesMalargüeArgentinaOrganizing committee of Lasi6Organizing committee of Lasi62019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/239936Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza; LASI VI The physical geology of subvolcanic systems: laccoliths, sills and dykes; Malargüe; Argentina; 2019; 1-2CONICET DigitalCONICETengNacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:25:21Zoai:ri.conicet.gov.ar:11336/239936instacron: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 10:25:21.782CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza
title Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza
spellingShingle Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza
Araujo, Vanesa Soledad
Shallow igneous bodies
Emplacement
Cordillera Principal.
Neuquén Basin
title_short Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza
title_full Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza
title_fullStr Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza
title_full_unstemmed Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza
title_sort Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza
dc.creator.none.fl_str_mv Araujo, Vanesa Soledad
Sánchez, Natalia Paola
Frisicale, María Cristina
Turienzo, Martín
Lebinson, Fernando Oscar
Dimieri, Luis Vicente
author Araujo, Vanesa Soledad
author_facet Araujo, Vanesa Soledad
Sánchez, Natalia Paola
Frisicale, María Cristina
Turienzo, Martín
Lebinson, Fernando Oscar
Dimieri, Luis Vicente
author_role author
author2 Sánchez, Natalia Paola
Frisicale, María Cristina
Turienzo, Martín
Lebinson, Fernando Oscar
Dimieri, Luis Vicente
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Shallow igneous bodies
Emplacement
Cordillera Principal.
Neuquén Basin
topic Shallow igneous bodies
Emplacement
Cordillera Principal.
Neuquén Basin
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv IT is considered that the rheological contrast between strata and tabular igneous bodies exert an important control on the emplacement and shape of magmatic bodies (Menand, 2011; Thomson and Schofield, 2008). Field observations and laboratory experiments regarding the location of sills and laccoliths indicate that some of these are formed when the feed channel reaches a layer whose rigidity does not allow to progress, thereby causing the lateral spread of magma (Kavanagh et al., 2006). There are several publications studying emplacement models of these bodies in compressive environments (Galland et al., 2007; Montanari et al., 2010; Menand, 2011; Ferre et al., 2012; Walker et al., 2016) which reveal that the bodies are constructed from amalgamation of successive pulses of tabular bodies, that are emplaced through fault systems under compressive stresses.The Malargüe FTB is a suitable place to study the mode of emplacement of neogene shallow intrusives likes sills, dykes and laccoliths. Figure 1 shows the distribution of the main bodies exposed in our study area.In the NE area (Fig. 1) the Laguna Amarga body and other shallow intrusive rocks are emplaced over a wide area coincident with a backthrusts system affecting basement rocks located in the hanging wall of the Carrizalito thrust (Turienzo et al., 2012). This relationship was also observed in seismic lines and exploration wells where it is possible to observed sills intruded in Late Jurassic-Early Cretaceous rocks at the footwall of the thin-skinned Sosneado and Mesón thrusts. This implies that the feed channels of intrusive bodies must be deeper than those thrusts. Therefore we consider that the emplacement of the Laguna Amarga laccolithic body may be associated with the underneath backthrust system generated in the hangingwall of the thick-skinned Carrizalito thrust (Araujo et al. 2013, 2019).To the south of the Atuel river (Fig. 1) the Cerro Chivato body seems to be emplaced benefitting from the weakness of the Auquilco Formation gypsum. In its eastern edge the body shows structural complexity in the contact with La Manga and Lotena Formations, disrupting and folding the strata. In the western side is possible to recognize the Tordillo Formation clearly resting on the intrusive in a concordantmanner. We interpret that this intrusive could havebeen emplaced through a north-south thrust fault within the Auquilco gypsum. This fault can be observed within the strata located of the intrusive, verging to the east.
Fil: Araujo, Vanesa Soledad. Universidad Nacional del Sur. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Sánchez, Natalia Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Frisicale, María Cristina. Universidad Nacional del Sur. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Turienzo, Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Lebinson, Fernando Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Dimieri, Luis Vicente. Universidad Nacional del Sur. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
LASI VI The physical geology of subvolcanic systems: laccoliths, sills and dykes
Malargüe
Argentina
Organizing committee of Lasi6
description IT is considered that the rheological contrast between strata and tabular igneous bodies exert an important control on the emplacement and shape of magmatic bodies (Menand, 2011; Thomson and Schofield, 2008). Field observations and laboratory experiments regarding the location of sills and laccoliths indicate that some of these are formed when the feed channel reaches a layer whose rigidity does not allow to progress, thereby causing the lateral spread of magma (Kavanagh et al., 2006). There are several publications studying emplacement models of these bodies in compressive environments (Galland et al., 2007; Montanari et al., 2010; Menand, 2011; Ferre et al., 2012; Walker et al., 2016) which reveal that the bodies are constructed from amalgamation of successive pulses of tabular bodies, that are emplaced through fault systems under compressive stresses.The Malargüe FTB is a suitable place to study the mode of emplacement of neogene shallow intrusives likes sills, dykes and laccoliths. Figure 1 shows the distribution of the main bodies exposed in our study area.In the NE area (Fig. 1) the Laguna Amarga body and other shallow intrusive rocks are emplaced over a wide area coincident with a backthrusts system affecting basement rocks located in the hanging wall of the Carrizalito thrust (Turienzo et al., 2012). This relationship was also observed in seismic lines and exploration wells where it is possible to observed sills intruded in Late Jurassic-Early Cretaceous rocks at the footwall of the thin-skinned Sosneado and Mesón thrusts. This implies that the feed channels of intrusive bodies must be deeper than those thrusts. Therefore we consider that the emplacement of the Laguna Amarga laccolithic body may be associated with the underneath backthrust system generated in the hangingwall of the thick-skinned Carrizalito thrust (Araujo et al. 2013, 2019).To the south of the Atuel river (Fig. 1) the Cerro Chivato body seems to be emplaced benefitting from the weakness of the Auquilco Formation gypsum. In its eastern edge the body shows structural complexity in the contact with La Manga and Lotena Formations, disrupting and folding the strata. In the western side is possible to recognize the Tordillo Formation clearly resting on the intrusive in a concordantmanner. We interpret that this intrusive could havebeen emplaced through a north-south thrust fault within the Auquilco gypsum. This fault can be observed within the strata located of the intrusive, verging to the east.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/239936
Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza; LASI VI The physical geology of subvolcanic systems: laccoliths, sills and dykes; Malargüe; Argentina; 2019; 1-2
CONICET Digital
CONICET
url http://hdl.handle.net/11336/239936
identifier_str_mv Mode of emplacement of shallow igneous bodies in the Malargüe fold and thrust belt, Mendoza; LASI VI The physical geology of subvolcanic systems: laccoliths, sills and dykes; Malargüe; Argentina; 2019; 1-2
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Nacional
dc.publisher.none.fl_str_mv Organizing committee of Lasi6
publisher.none.fl_str_mv Organizing committee of Lasi6
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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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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