Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano

Detalhes bibliográficos
Autor(a) principal: Mutti, Diana
Data de Publicação: 2005
Outros Autores: Marco, Alejandro di, Tourn, Selvia, Herrmann, Carlos, Geuna, Silvana
Tipo de documento: Artigo
Idioma: spa
Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
Texto Completo: http://www.repositorio.ufc.br/handle/riufc/64485
Resumo: Metallogenic evolution of the Sierras Pampeanas of Córdoba and south of Santiago del Estero: Prepampean and Pampean cycles. This hypothesis of metallogenic evolution of the Sierras Pampeaneas of Córdoba and south of Santiago del Estero proposes the existence of five metallogenic stages, two of wich are treated in this paper: stage 1 belongs to the prepampean extensional cycle and is connected with the Neoproterozoic opening and expansion of the proto-Atlantic ocean. During this stage submarine volcanogenic deposits were developed such as Cu-Fe (Zn-Au-Ag-Co) in basalts, W (B-F-Zn) in impure limestones and dolomites, and Fe in silicoclastic sediments, as well as transition occurrences from them to MVT deposits of Cu (Au-Ag) and PbZn (Ag-Cu-Au) in impure limestones and dolomites. Chromite magmatic deposits in mantle tectonites and of Fe-Ti in ultramaficmafic rocks in the transition crust-mantle zone are also related to stage 1. Distribution of the Prepampean deposits and their space relationship with the main submarine volcanogenic, SEDEX and MVT areas in the proto-atlantic ocean are placed on a global reconstruction for Neoproterozoic age. The compressive Pampean - Famatinian cycle comprises two stages. Metallogenic stage 2 (Neoproterozoic - early Cambrian) corresponds to the pampean orogenic cycle, during which numerous deformation structures and magmatism were developed. During this stage magmatic-metamorphic occurrences of Fe-Ti in ultramafic and mafic dikes in mantle tectonites, metasomatic occurrences of Fe-Ti in rodingites and Be-Li-U-ETR rich pegmatites were generated, besides transformation events comprising metamorphism, deformation, remobilization and recrystallization occurred in deposits of Cr, Cu-Fe (Zn-Au-AgCo), W (B-F-Zn), Cu (Au-Ag), Pb-Zn (Ag-Cu-Au) and Fe, which affected their magnetic response.Ore deposits and occurrences included in the above metallogenic stages are distributed in this study in belts related to megastructures activated during the Prepampean and Pampean cycles and the most significant petrogenetic associations are indicated.
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spelling Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeanoMetalogénesisSierras Pampeanas de Córdoba y sur de Santiago del EsteroFajas mineralizadasCorrelación yacimientológica prepampeana - pampeanaMetallogenic evolution of the Sierras Pampeanas of Córdoba and south of Santiago del Estero: Prepampean and Pampean cycles. This hypothesis of metallogenic evolution of the Sierras Pampeaneas of Córdoba and south of Santiago del Estero proposes the existence of five metallogenic stages, two of wich are treated in this paper: stage 1 belongs to the prepampean extensional cycle and is connected with the Neoproterozoic opening and expansion of the proto-Atlantic ocean. During this stage submarine volcanogenic deposits were developed such as Cu-Fe (Zn-Au-Ag-Co) in basalts, W (B-F-Zn) in impure limestones and dolomites, and Fe in silicoclastic sediments, as well as transition occurrences from them to MVT deposits of Cu (Au-Ag) and PbZn (Ag-Cu-Au) in impure limestones and dolomites. Chromite magmatic deposits in mantle tectonites and of Fe-Ti in ultramaficmafic rocks in the transition crust-mantle zone are also related to stage 1. Distribution of the Prepampean deposits and their space relationship with the main submarine volcanogenic, SEDEX and MVT areas in the proto-atlantic ocean are placed on a global reconstruction for Neoproterozoic age. The compressive Pampean - Famatinian cycle comprises two stages. Metallogenic stage 2 (Neoproterozoic - early Cambrian) corresponds to the pampean orogenic cycle, during which numerous deformation structures and magmatism were developed. During this stage magmatic-metamorphic occurrences of Fe-Ti in ultramafic and mafic dikes in mantle tectonites, metasomatic occurrences of Fe-Ti in rodingites and Be-Li-U-ETR rich pegmatites were generated, besides transformation events comprising metamorphism, deformation, remobilization and recrystallization occurred in deposits of Cr, Cu-Fe (Zn-Au-AgCo), W (B-F-Zn), Cu (Au-Ag), Pb-Zn (Ag-Cu-Au) and Fe, which affected their magnetic response.Ore deposits and occurrences included in the above metallogenic stages are distributed in this study in belts related to megastructures activated during the Prepampean and Pampean cycles and the most significant petrogenetic associations are indicated.La hipótesis de evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero propone cinco estadios metalogenéticos, de los cuales los dos primeros se abordan en este trabajo: el estadio 1 - vinculado con la apertura y expansión neoproterozoica del océano proto-atlántico - forma parte del ciclo extensional prepampeano. Durante el mismo se generaron depósitos volcanogénicos submarinos de Cu-Fe (Zn-Au-Ag-Co) en basaltos, W (B-F-Zn) en calizas y dolomías impuras y Fe en sedimentos silicoclásticos, y manifestaciones transicionales entre éstos y MVT de Cu (Au-Ag) y Pb-Zn (Ag-Cu-Au) en calizas y dolomías impuras; a él se asocian concentraciones magmáticas de Cr en tectonitas del manto y de Fe-Ti en ultramafitas-mafitas de la zona de transición corteza-manto. En una reconstrucción global neoproterozoica, se establece la distribución de los depósitos prepampeanos y su relación espacial con los principales distritos volcanogénicos submarinos, SEDEX y MVT del océano protoatlantico.El ciclo compresional pampeano - famatiniano comprende dos estadios. El estadio metalogenético 2 (Neoproterozoico - Cámbrico temprano) corresponde al ciclo orogénico pampeano, durante el cual se desarrollaron numerosas estructuras deformacionales y magmatismo, generándose manifestaciones magmático-metamórficas de Fe-Ti en diques ultramáficos y máficos en tectonitas del manto, manifestaciones metasomáticas de Fe-Ti en rodingitas y pegmatitas portadoras de Be-Li-U-ETR, además de transformaciones (metamorfismo, deformación, removilización y recristalización) en depósitos de Cr, Cu-Fe (Zn-Au-Ag-Co), W (B-F-Zn), Cu (Au-Ag), Pb-Zn (Ag-Cu-Au) y Fe, que condicionan su respuesta magnética. Para los depósitos y manifestaciones de los estadios metalogenéticos descriptos se propone una distribución espacial según fajas vinculadas con megaestructuras activas a partir de los ciclos prepampeano y pampeano, y las asociaciones petrogenéticas más significativas.Revista de la Asociación Geológica Argentina2022-03-17T23:16:10Z2022-03-17T23:16:10Z2005info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfMUTTI, Diana et al. Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano. Asociación Geológica Argentina, Buenos Ayres, v. 60, n. 1, p. 104-121 2005.1851-8249http://www.repositorio.ufc.br/handle/riufc/64485Mutti, DianaMarco, Alejandro diTourn, SelviaHerrmann, CarlosGeuna, Silvanainfo:eu-repo/semantics/openAccessspareponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFC2023-10-10T17:24:03Zoai:repositorio.ufc.br:riufc/64485Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2024-09-11T18:18:10.913351Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano
title Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano
spellingShingle Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano
Mutti, Diana
Metalogénesis
Sierras Pampeanas de Córdoba y sur de Santiago del Estero
Fajas mineralizadas
Correlación yacimientológica prepampeana - pampeana
title_short Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano
title_full Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano
title_fullStr Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano
title_full_unstemmed Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano
title_sort Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano
author Mutti, Diana
author_facet Mutti, Diana
Marco, Alejandro di
Tourn, Selvia
Herrmann, Carlos
Geuna, Silvana
author_role author
author2 Marco, Alejandro di
Tourn, Selvia
Herrmann, Carlos
Geuna, Silvana
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Mutti, Diana
Marco, Alejandro di
Tourn, Selvia
Herrmann, Carlos
Geuna, Silvana
dc.subject.por.fl_str_mv Metalogénesis
Sierras Pampeanas de Córdoba y sur de Santiago del Estero
Fajas mineralizadas
Correlación yacimientológica prepampeana - pampeana
topic Metalogénesis
Sierras Pampeanas de Córdoba y sur de Santiago del Estero
Fajas mineralizadas
Correlación yacimientológica prepampeana - pampeana
description Metallogenic evolution of the Sierras Pampeanas of Córdoba and south of Santiago del Estero: Prepampean and Pampean cycles. This hypothesis of metallogenic evolution of the Sierras Pampeaneas of Córdoba and south of Santiago del Estero proposes the existence of five metallogenic stages, two of wich are treated in this paper: stage 1 belongs to the prepampean extensional cycle and is connected with the Neoproterozoic opening and expansion of the proto-Atlantic ocean. During this stage submarine volcanogenic deposits were developed such as Cu-Fe (Zn-Au-Ag-Co) in basalts, W (B-F-Zn) in impure limestones and dolomites, and Fe in silicoclastic sediments, as well as transition occurrences from them to MVT deposits of Cu (Au-Ag) and PbZn (Ag-Cu-Au) in impure limestones and dolomites. Chromite magmatic deposits in mantle tectonites and of Fe-Ti in ultramaficmafic rocks in the transition crust-mantle zone are also related to stage 1. Distribution of the Prepampean deposits and their space relationship with the main submarine volcanogenic, SEDEX and MVT areas in the proto-atlantic ocean are placed on a global reconstruction for Neoproterozoic age. The compressive Pampean - Famatinian cycle comprises two stages. Metallogenic stage 2 (Neoproterozoic - early Cambrian) corresponds to the pampean orogenic cycle, during which numerous deformation structures and magmatism were developed. During this stage magmatic-metamorphic occurrences of Fe-Ti in ultramafic and mafic dikes in mantle tectonites, metasomatic occurrences of Fe-Ti in rodingites and Be-Li-U-ETR rich pegmatites were generated, besides transformation events comprising metamorphism, deformation, remobilization and recrystallization occurred in deposits of Cr, Cu-Fe (Zn-Au-AgCo), W (B-F-Zn), Cu (Au-Ag), Pb-Zn (Ag-Cu-Au) and Fe, which affected their magnetic response.Ore deposits and occurrences included in the above metallogenic stages are distributed in this study in belts related to megastructures activated during the Prepampean and Pampean cycles and the most significant petrogenetic associations are indicated.
publishDate 2005
dc.date.none.fl_str_mv 2005
2022-03-17T23:16:10Z
2022-03-17T23:16:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv MUTTI, Diana et al. Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano. Asociación Geológica Argentina, Buenos Ayres, v. 60, n. 1, p. 104-121 2005.
1851-8249
http://www.repositorio.ufc.br/handle/riufc/64485
identifier_str_mv MUTTI, Diana et al. Evolución metalogenética de las Sierras Pampeanas de Córdoba y sur de Santiago del Estero: ciclos prepampeano y pampeano. Asociación Geológica Argentina, Buenos Ayres, v. 60, n. 1, p. 104-121 2005.
1851-8249
url http://www.repositorio.ufc.br/handle/riufc/64485
dc.language.iso.fl_str_mv spa
language spa
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Revista de la Asociación Geológica Argentina
publisher.none.fl_str_mv Revista de la Asociación Geológica Argentina
dc.source.none.fl_str_mv reponame:Repositório Institucional da Universidade Federal do Ceará (UFC)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Repositório Institucional da Universidade Federal do Ceará (UFC)
collection Repositório Institucional da Universidade Federal do Ceará (UFC)
repository.name.fl_str_mv Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv bu@ufc.br || repositorio@ufc.br
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