Phase equilibria and geochronology of Ossa-Morena eclogites

Detalhes bibliográficos
Autor(a) principal: Moita, Patricia
Data de Publicação: 2005
Outros Autores: Munhá, José, Fonseca, Paulo, Pedro, Jorge, Araújo, Alexandre, Tassinari, Colombo, Palacios, Teresa
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10174/2299
Resumo: The mineralogical evolution of OMZ eclogites was modelled by calculated P-T pseudosection analysis for an appropriate bulk composition in the model system CNFMASH. OMZ eclogites having developed a clockwise P-T path that reached 16-18 kbar and 600-650 ºC, underwent isothermal decompression to 12-10 kbar before final cooling (< 550 ºC) to greenschist facies conditions. Sm/Nd and Ar/Ar radiometric data indicate that the OMZ eclogite facies metamorphism took place at ~370 Ma, being followed shortly afterwards by exhumation during (D1) nappe emplacement.
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spelling Phase equilibria and geochronology of Ossa-Morena eclogitesEclogitesOssa-Morena ZoneThe mineralogical evolution of OMZ eclogites was modelled by calculated P-T pseudosection analysis for an appropriate bulk composition in the model system CNFMASH. OMZ eclogites having developed a clockwise P-T path that reached 16-18 kbar and 600-650 ºC, underwent isothermal decompression to 12-10 kbar before final cooling (< 550 ºC) to greenschist facies conditions. Sm/Nd and Ar/Ar radiometric data indicate that the OMZ eclogite facies metamorphism took place at ~370 Ma, being followed shortly afterwards by exhumation during (D1) nappe emplacement.2010-12-13T10:29:27Z2010-12-132005-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject2205956 bytesapplication/mswordhttp://hdl.handle.net/10174/2299http://hdl.handle.net/10174/2299engAveiro471-471Poster - XIV Semana de Geoquímica / VIII Congresso de Geoquímica dos Países de Língua PortuguesanaonaosimlivreGEOndndndndndndnd250Moita, PatriciaMunhá, JoséFonseca, PauloPedro, JorgeAraújo, AlexandreTassinari, ColomboPalacios, Teresainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T18:38:40Zoai:dspace.uevora.pt:10174/2299Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:58:02.368931Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Phase equilibria and geochronology of Ossa-Morena eclogites
title Phase equilibria and geochronology of Ossa-Morena eclogites
spellingShingle Phase equilibria and geochronology of Ossa-Morena eclogites
Moita, Patricia
Eclogites
Ossa-Morena Zone
title_short Phase equilibria and geochronology of Ossa-Morena eclogites
title_full Phase equilibria and geochronology of Ossa-Morena eclogites
title_fullStr Phase equilibria and geochronology of Ossa-Morena eclogites
title_full_unstemmed Phase equilibria and geochronology of Ossa-Morena eclogites
title_sort Phase equilibria and geochronology of Ossa-Morena eclogites
author Moita, Patricia
author_facet Moita, Patricia
Munhá, José
Fonseca, Paulo
Pedro, Jorge
Araújo, Alexandre
Tassinari, Colombo
Palacios, Teresa
author_role author
author2 Munhá, José
Fonseca, Paulo
Pedro, Jorge
Araújo, Alexandre
Tassinari, Colombo
Palacios, Teresa
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Moita, Patricia
Munhá, José
Fonseca, Paulo
Pedro, Jorge
Araújo, Alexandre
Tassinari, Colombo
Palacios, Teresa
dc.subject.por.fl_str_mv Eclogites
Ossa-Morena Zone
topic Eclogites
Ossa-Morena Zone
description The mineralogical evolution of OMZ eclogites was modelled by calculated P-T pseudosection analysis for an appropriate bulk composition in the model system CNFMASH. OMZ eclogites having developed a clockwise P-T path that reached 16-18 kbar and 600-650 ºC, underwent isothermal decompression to 12-10 kbar before final cooling (< 550 ºC) to greenschist facies conditions. Sm/Nd and Ar/Ar radiometric data indicate that the OMZ eclogite facies metamorphism took place at ~370 Ma, being followed shortly afterwards by exhumation during (D1) nappe emplacement.
publishDate 2005
dc.date.none.fl_str_mv 2005-01-01T00:00:00Z
2010-12-13T10:29:27Z
2010-12-13
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10174/2299
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dc.relation.none.fl_str_mv Aveiro
471-471
Poster - XIV Semana de Geoquímica / VIII Congresso de Geoquímica dos Países de Língua Portuguesa
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GEO
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