A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina

Autores
Yoshinobu, Aaron S.; Fowler, T. Kenneth; Paterson, Scott R.; Llambias, Eduardo Jorge; Tickyj, Hugo; Sato, Ana Maria
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nearly 2 km of vertical relief and exposure of continuous pluton roof-wall corners around the Chita pluton, northwest Argentina, provides constraints on the 3-D host rock displacement field attending magma emplacement in the shallow crust. The pluton is rectangular in cross-sectional view and consists of weakly to non-deformed granite to granodiorite. Structures in surrounding metasedimentary host rocks are truncated at a knife-sharp contact and are only weakly deflected from their regional orientations. Final emplacement occurred by stoping together with minor doming of the earth's surface. Structural restoration of a cross-section indicates that host-rocks above the pluton may have been domed upwards during emplacement by as much as a few hundred meters, accounting for up to 20% of the exposed pluton volume. The remaining 80% of the space for pluton emplacement was made by downward removal of host-rock from the present level of exposure. Although mechanisms such as floor-subsidence are permissive, late stoping has destroyed evidence for the early emplacement history. However, geometrical constraints provided by exposure of continuous wall-to-roof contacts indicate that early emplacement mechanisms at this level in the crust and immediately below were also dominated by the downward displacement of host rocks through a conduit that now is represented by the solidified pluton. © 2002 Elsevier Science Ltd.
Fil: Yoshinobu, Aaron S.. Texas Tech University; Estados Unidos
Fil: Fowler, T. Kenneth. Exxon Production Research Company; Estados Unidos
Fil: Paterson, Scott R.. University of Southern California; Estados Unidos
Fil: Llambias, Eduardo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Tickyj, Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Sato, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Materia
Argentina Frontal Cordillera
Granite
Magmatic Arcs
Pluton Emplacement
Stoping
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:11336/72578
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/72578
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, ArgentinaYoshinobu, Aaron S.Fowler, T. KennethPaterson, Scott R.Llambias, Eduardo JorgeTickyj, HugoSato, Ana MariaArgentina Frontal CordilleraGraniteMagmatic ArcsPluton EmplacementStopinghttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Nearly 2 km of vertical relief and exposure of continuous pluton roof-wall corners around the Chita pluton, northwest Argentina, provides constraints on the 3-D host rock displacement field attending magma emplacement in the shallow crust. The pluton is rectangular in cross-sectional view and consists of weakly to non-deformed granite to granodiorite. Structures in surrounding metasedimentary host rocks are truncated at a knife-sharp contact and are only weakly deflected from their regional orientations. Final emplacement occurred by stoping together with minor doming of the earth's surface. Structural restoration of a cross-section indicates that host-rocks above the pluton may have been domed upwards during emplacement by as much as a few hundred meters, accounting for up to 20% of the exposed pluton volume. The remaining 80% of the space for pluton emplacement was made by downward removal of host-rock from the present level of exposure. Although mechanisms such as floor-subsidence are permissive, late stoping has destroyed evidence for the early emplacement history. However, geometrical constraints provided by exposure of continuous wall-to-roof contacts indicate that early emplacement mechanisms at this level in the crust and immediately below were also dominated by the downward displacement of host rocks through a conduit that now is represented by the solidified pluton. © 2002 Elsevier Science Ltd.Fil: Yoshinobu, Aaron S.. Texas Tech University; Estados UnidosFil: Fowler, T. Kenneth. Exxon Production Research Company; Estados UnidosFil: Paterson, Scott R.. University of Southern California; Estados UnidosFil: Llambias, Eduardo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Tickyj, Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Sato, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaPergamon-Elsevier Science Ltd2003-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72578Yoshinobu, Aaron S.; Fowler, T. Kenneth; Paterson, Scott R.; Llambias, Eduardo Jorge; Tickyj, Hugo; et al.; A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina; Pergamon-Elsevier Science Ltd; Journal Of Structural Geology; 25; 7; 7-2003; 1037-10480191-8141CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0191814102001499info:eu-repo/semantics/altIdentifier/doi/10.1016/S0191-8141(02)00149-9info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:21:23Zoai:ri.conicet.gov.ar:11336/72578instacron: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 13:21:23.943CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina
title A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina
spellingShingle A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina
Yoshinobu, Aaron S.
Argentina Frontal Cordillera
Granite
Magmatic Arcs
Pluton Emplacement
Stoping
title_short A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina
title_full A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina
title_fullStr A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina
title_full_unstemmed A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina
title_sort A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina
dc.creator.none.fl_str_mv Yoshinobu, Aaron S.
Fowler, T. Kenneth
Paterson, Scott R.
Llambias, Eduardo Jorge
Tickyj, Hugo
Sato, Ana Maria
author Yoshinobu, Aaron S.
author_facet Yoshinobu, Aaron S.
Fowler, T. Kenneth
Paterson, Scott R.
Llambias, Eduardo Jorge
Tickyj, Hugo
Sato, Ana Maria
author_role author
author2 Fowler, T. Kenneth
Paterson, Scott R.
Llambias, Eduardo Jorge
Tickyj, Hugo
Sato, Ana Maria
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Argentina Frontal Cordillera
Granite
Magmatic Arcs
Pluton Emplacement
Stoping
topic Argentina Frontal Cordillera
Granite
Magmatic Arcs
Pluton Emplacement
Stoping
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Nearly 2 km of vertical relief and exposure of continuous pluton roof-wall corners around the Chita pluton, northwest Argentina, provides constraints on the 3-D host rock displacement field attending magma emplacement in the shallow crust. The pluton is rectangular in cross-sectional view and consists of weakly to non-deformed granite to granodiorite. Structures in surrounding metasedimentary host rocks are truncated at a knife-sharp contact and are only weakly deflected from their regional orientations. Final emplacement occurred by stoping together with minor doming of the earth's surface. Structural restoration of a cross-section indicates that host-rocks above the pluton may have been domed upwards during emplacement by as much as a few hundred meters, accounting for up to 20% of the exposed pluton volume. The remaining 80% of the space for pluton emplacement was made by downward removal of host-rock from the present level of exposure. Although mechanisms such as floor-subsidence are permissive, late stoping has destroyed evidence for the early emplacement history. However, geometrical constraints provided by exposure of continuous wall-to-roof contacts indicate that early emplacement mechanisms at this level in the crust and immediately below were also dominated by the downward displacement of host rocks through a conduit that now is represented by the solidified pluton. © 2002 Elsevier Science Ltd.
Fil: Yoshinobu, Aaron S.. Texas Tech University; Estados Unidos
Fil: Fowler, T. Kenneth. Exxon Production Research Company; Estados Unidos
Fil: Paterson, Scott R.. University of Southern California; Estados Unidos
Fil: Llambias, Eduardo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Tickyj, Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Sato, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
description Nearly 2 km of vertical relief and exposure of continuous pluton roof-wall corners around the Chita pluton, northwest Argentina, provides constraints on the 3-D host rock displacement field attending magma emplacement in the shallow crust. The pluton is rectangular in cross-sectional view and consists of weakly to non-deformed granite to granodiorite. Structures in surrounding metasedimentary host rocks are truncated at a knife-sharp contact and are only weakly deflected from their regional orientations. Final emplacement occurred by stoping together with minor doming of the earth's surface. Structural restoration of a cross-section indicates that host-rocks above the pluton may have been domed upwards during emplacement by as much as a few hundred meters, accounting for up to 20% of the exposed pluton volume. The remaining 80% of the space for pluton emplacement was made by downward removal of host-rock from the present level of exposure. Although mechanisms such as floor-subsidence are permissive, late stoping has destroyed evidence for the early emplacement history. However, geometrical constraints provided by exposure of continuous wall-to-roof contacts indicate that early emplacement mechanisms at this level in the crust and immediately below were also dominated by the downward displacement of host rocks through a conduit that now is represented by the solidified pluton. © 2002 Elsevier Science Ltd.
publishDate 2003
dc.date.none.fl_str_mv 2003-07
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/11336/72578
Yoshinobu, Aaron S.; Fowler, T. Kenneth; Paterson, Scott R.; Llambias, Eduardo Jorge; Tickyj, Hugo; et al.; A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina; Pergamon-Elsevier Science Ltd; Journal Of Structural Geology; 25; 7; 7-2003; 1037-1048
0191-8141
CONICET Digital
CONICET
url http://hdl.handle.net/11336/72578
identifier_str_mv Yoshinobu, Aaron S.; Fowler, T. Kenneth; Paterson, Scott R.; Llambias, Eduardo Jorge; Tickyj, Hugo; et al.; A view from the roof: Magmatic stoping in the shallow crust, Chita pluton, Argentina; Pergamon-Elsevier Science Ltd; Journal Of Structural Geology; 25; 7; 7-2003; 1037-1048
0191-8141
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.sciencedirect.com/science/article/pii/S0191814102001499
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0191-8141(02)00149-9
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 Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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 12.48226

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