Diques piroclásticos en el Complejo Volcánico Marifil

Autores
González, Santiago N.; Greco, Gerson A.
Año de publicación
2019
Idioma
español castellano
Tipo de recurso
documento de conferencia
Estado
versión aceptada
Descripción
Fil: González, Santiago N. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro; Argentina
Fil: González, Santiago N. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigacion en Paleobiología y Geología. Río Negro; Argentina.
Fil: Greco, Gerson A. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigacion en Paleobiología y Geología. Río Negro; Argentina.
Fil: Greco, Gerson A. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro; Argentina.
Pyroclastic dykes in the Marifil Volcanic Complex. The acidic rocks from the Marifil Volcanic Complex (MVC) represent the Jurassic magmatism from the northeast Patagonia. The emplacement and eruption of this magmatism was controlled by northwest extensional fractures. The stratigraphic succession of the MVC starts with epiclastic deposits follow by thick pyroclastic sheets. Domes, lava flows, dykes and stocks represent the final stages of the Jurassic magmatic event. In Rincon de Paileman, pyroclastic dykes have been recognized and has been related to the pyroclastic eruptions of the MVC. Based in this relation between the pyroclastic dykes and the violent eruptions, a proposal about the evolution of the MVC is made. It started with sedimentation in depocenters where their development was control by northwest extensional fractures. When the extensional fractures reach cortical magmatic reservoirs, it produces a massive degasification leading to violent eruptions and the deposition of thick pyroclastic levels. The pyroclastic dykes might have been the feeders of those eruptions. After degasification the magmatic activity turns less violent producing coherent magma bodies as domes, dykes and stocks. The successive magmatic pulses might have used the northwest structures as channels producing pyroclastic and magmatic dykes with the same orientation. These channels might have also worked as feeders for the eruptive products. Considering this new data and the proposed model, the idea of a fissural Jurassic volcanism in the northeast Patagonia is reinforced.
Materia
Geociencias (Multidisciplinar)
Patagonia
Jurásico
Magmatismo
Fisural
Geociencias (Multidisciplinar)
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/4078

id RIDUNRN_7bdc4a3f75d2988d62dc6c3d8aa39a03
oai_identifier_str oai:rid.unrn.edu.ar:20.500.12049/4078
network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling Diques piroclásticos en el Complejo Volcánico MarifilGonzález, Santiago N.Greco, Gerson A.Geociencias (Multidisciplinar)PatagoniaJurásicoMagmatismoFisuralGeociencias (Multidisciplinar)Fil: González, Santiago N. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro; ArgentinaFil: González, Santiago N. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigacion en Paleobiología y Geología. Río Negro; Argentina.Fil: Greco, Gerson A. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigacion en Paleobiología y Geología. Río Negro; Argentina.Fil: Greco, Gerson A. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro; Argentina.Pyroclastic dykes in the Marifil Volcanic Complex. The acidic rocks from the Marifil Volcanic Complex (MVC) represent the Jurassic magmatism from the northeast Patagonia. The emplacement and eruption of this magmatism was controlled by northwest extensional fractures. The stratigraphic succession of the MVC starts with epiclastic deposits follow by thick pyroclastic sheets. Domes, lava flows, dykes and stocks represent the final stages of the Jurassic magmatic event. In Rincon de Paileman, pyroclastic dykes have been recognized and has been related to the pyroclastic eruptions of the MVC. Based in this relation between the pyroclastic dykes and the violent eruptions, a proposal about the evolution of the MVC is made. It started with sedimentation in depocenters where their development was control by northwest extensional fractures. When the extensional fractures reach cortical magmatic reservoirs, it produces a massive degasification leading to violent eruptions and the deposition of thick pyroclastic levels. The pyroclastic dykes might have been the feeders of those eruptions. After degasification the magmatic activity turns less violent producing coherent magma bodies as domes, dykes and stocks. The successive magmatic pulses might have used the northwest structures as channels producing pyroclastic and magmatic dykes with the same orientation. These channels might have also worked as feeders for the eruptive products. Considering this new data and the proposed model, the idea of a fissural Jurassic volcanism in the northeast Patagonia is reinforced.2019-08info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttp://minmet-pimma-2019.congresos.unc.edu.ar/wp-content/uploads/sites/74/2019/08/Acta-Completa-XIII-Minmet-Pimma.pdfhttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/4078spaXIII CONGRESO DE MINERALOGÍA, PETROLOGÍA ÍGNEA Y METAMÓRFICA, Y METALOGÉNESIShttp://minmet-pimma-2019.congresos.unc.edu.ar/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-04T11:12:44Zoai:rid.unrn.edu.ar:20.500.12049/4078instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-04 11:12:44.644RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv Diques piroclásticos en el Complejo Volcánico Marifil
title Diques piroclásticos en el Complejo Volcánico Marifil
spellingShingle Diques piroclásticos en el Complejo Volcánico Marifil
González, Santiago N.
Geociencias (Multidisciplinar)
Patagonia
Jurásico
Magmatismo
Fisural
Geociencias (Multidisciplinar)
title_short Diques piroclásticos en el Complejo Volcánico Marifil
title_full Diques piroclásticos en el Complejo Volcánico Marifil
title_fullStr Diques piroclásticos en el Complejo Volcánico Marifil
title_full_unstemmed Diques piroclásticos en el Complejo Volcánico Marifil
title_sort Diques piroclásticos en el Complejo Volcánico Marifil
dc.creator.none.fl_str_mv González, Santiago N.
Greco, Gerson A.
author González, Santiago N.
author_facet González, Santiago N.
Greco, Gerson A.
author_role author
author2 Greco, Gerson A.
author2_role author
dc.subject.none.fl_str_mv Geociencias (Multidisciplinar)
Patagonia
Jurásico
Magmatismo
Fisural
Geociencias (Multidisciplinar)
topic Geociencias (Multidisciplinar)
Patagonia
Jurásico
Magmatismo
Fisural
Geociencias (Multidisciplinar)
dc.description.none.fl_txt_mv Fil: González, Santiago N. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro; Argentina
Fil: González, Santiago N. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigacion en Paleobiología y Geología. Río Negro; Argentina.
Fil: Greco, Gerson A. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigacion en Paleobiología y Geología. Río Negro; Argentina.
Fil: Greco, Gerson A. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro; Argentina.
Pyroclastic dykes in the Marifil Volcanic Complex. The acidic rocks from the Marifil Volcanic Complex (MVC) represent the Jurassic magmatism from the northeast Patagonia. The emplacement and eruption of this magmatism was controlled by northwest extensional fractures. The stratigraphic succession of the MVC starts with epiclastic deposits follow by thick pyroclastic sheets. Domes, lava flows, dykes and stocks represent the final stages of the Jurassic magmatic event. In Rincon de Paileman, pyroclastic dykes have been recognized and has been related to the pyroclastic eruptions of the MVC. Based in this relation between the pyroclastic dykes and the violent eruptions, a proposal about the evolution of the MVC is made. It started with sedimentation in depocenters where their development was control by northwest extensional fractures. When the extensional fractures reach cortical magmatic reservoirs, it produces a massive degasification leading to violent eruptions and the deposition of thick pyroclastic levels. The pyroclastic dykes might have been the feeders of those eruptions. After degasification the magmatic activity turns less violent producing coherent magma bodies as domes, dykes and stocks. The successive magmatic pulses might have used the northwest structures as channels producing pyroclastic and magmatic dykes with the same orientation. These channels might have also worked as feeders for the eruptive products. Considering this new data and the proposed model, the idea of a fissural Jurassic volcanism in the northeast Patagonia is reinforced.
description Fil: González, Santiago N. Universidad Nacional de Río Negro. Instituto de Investigaciones en Paleobiología y Geología. Río Negro; Argentina
publishDate 2019
dc.date.none.fl_str_mv 2019-08
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://minmet-pimma-2019.congresos.unc.edu.ar/wp-content/uploads/sites/74/2019/08/Acta-Completa-XIII-Minmet-Pimma.pdf
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/4078
url http://minmet-pimma-2019.congresos.unc.edu.ar/wp-content/uploads/sites/74/2019/08/Acta-Completa-XIII-Minmet-Pimma.pdf
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/4078
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv XIII CONGRESO DE MINERALOGÍA, PETROLOGÍA ÍGNEA Y METAMÓRFICA, Y METALOGÉNESIS
http://minmet-pimma-2019.congresos.unc.edu.ar/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
_version_ 1842344105015771136
score 12.623145