Magmatismo Neoproterozóico no Sul do Estado da Bahia, maciço sienítico serra das araras: geologia, petrografia, idade e geoquímica

Detalhes bibliográficos
Autor(a) principal: Rosa, Maria de Lourdes da Silva
Data de Publicação: 2005
Outros Autores: Conceição, Herbet, Macambira, Moacir José Buenano, Marinho, Moacyr Moura, Menezes, Rita Cunha Leal, Cunha, Mônica Prisgsheim da, Rios, Débora Correia
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/2542
Resumo: p. 111-121
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spelling Rosa, Maria de Lourdes da SilvaConceição, HerbetMacambira, Moacir José BuenanoMarinho, Moacyr MouraMenezes, Rita Cunha LealCunha, Mônica Prisgsheim daRios, Débora CorreiaRosa, Maria de Lourdes da SilvaConceição, HerbetMacambira, Moacir José BuenanoMarinho, Moacyr MouraMenezes, Rita Cunha LealCunha, Mônica Prisgsheim daRios, Débora Correia2011-09-05T16:50:48Z2011-09-05T16:50:48Z20052177-4382http://www.repositorio.ufba.br/ri/handle/ri/254235(1)p. 111-121NEOPROTEROZOIC MAGMATISM IN THE SOUTHERN OF BAHIA STATE, SERRA DAS ARARAS SYENITIC MASSIF: GEOLOGY, PETROGRAPHY, AGE AND GEOCHEMISTRY The Serra das Araras Syenitic Massif (220 km2) is a Brasiliano aged intrusion (single zircon Pb-Pb age of 739 ± 2 Ma), located in the South area of an alignment of alkaline rocks that constitute the Alkaline Province of South Bahia. These rocks are predominantly hypersolvus syenites with biotite, hornblende and occasionally quartz, which gradually evolve into blue quartz-alkaline granites in the core. The massif has been passively emplaced at a Mesoproterozoic geosuture, which was re-activated during the Neoproterozoic. Geochemical data suggest that the syenitic and granitic rocks are cogenetic. The chemical evolution of Araras rocks allows explaining the generation of alkaline granites by fractional crystallization of syenitic magma, with a mafic syenitic cumulates similar to those observed in this massif. The negative epsilon Nd values, associated with the low HREE contents, indicate an enriched mantelic source at the garnet stability zone. The patterns observed to the syenitic rocks, in the multielement diagram normalized by the primitive mantle, and the absence of Nb negative anomalies, indicate an OIB signature and do not suggest any important process of crustal assimilation.Submitted by Ana Valéria de Jesus Moura (anavaleria_131@hotmail.com) on 2011-09-05T16:50:48Z No. of bitstreams: 1 8641-25337-1-PB.pdf: 659781 bytes, checksum: c3e83efda4b1c5ee66403f323c676030 (MD5)Made available in DSpace on 2011-09-05T16:50:48Z (GMT). No. of bitstreams: 1 8641-25337-1-PB.pdf: 659781 bytes, checksum: c3e83efda4b1c5ee66403f323c676030 (MD5) Previous issue date: 2005Pb-Pb age. Geology. Petrography. Geochemistry. Serra das Araras Syenitic MassifGeologia. Petrografia. Idade Pb-Pb. Geoquímica. Maciço Sienítico Serra das ArarasMagmatismo Neoproterozóico no Sul do Estado da Bahia, maciço sienítico serra das araras: geologia, petrografia, idade e geoquímicaRevista Brasileira de Geociênciasinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleporreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAinfo:eu-repo/semantics/openAccessORIGINAL8641-25337-1-PB.pdf8641-25337-1-PB.pdfapplication/pdf659781https://repositorio.ufba.br/bitstream/ri/2542/1/8641-25337-1-PB.pdfc3e83efda4b1c5ee66403f323c676030MD51LICENSElicense.txtlicense.txttext/plain1918https://repositorio.ufba.br/bitstream/ri/2542/2/license.txtaadedd9b40f50d713b9d0f786d4d9b4cMD52TEXT8641-25337-1-PB.pdf.txt8641-25337-1-PB.pdf.txtExtracted texttext/plain49989https://repositorio.ufba.br/bitstream/ri/2542/3/8641-25337-1-PB.pdf.txt7914fa6107b7f80ecfe938bfb171bc7eMD53ri/25422022-07-05 14:03:09.441oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:09Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Magmatismo Neoproterozóico no Sul do Estado da Bahia, maciço sienítico serra das araras: geologia, petrografia, idade e geoquímica
dc.title.alternative.pt_BR.fl_str_mv Revista Brasileira de Geociências
title Magmatismo Neoproterozóico no Sul do Estado da Bahia, maciço sienítico serra das araras: geologia, petrografia, idade e geoquímica
spellingShingle Magmatismo Neoproterozóico no Sul do Estado da Bahia, maciço sienítico serra das araras: geologia, petrografia, idade e geoquímica
Rosa, Maria de Lourdes da Silva
Pb-Pb age. Geology. Petrography. Geochemistry. Serra das Araras Syenitic Massif
Geologia. Petrografia. Idade Pb-Pb. Geoquímica. Maciço Sienítico Serra das Araras
title_short Magmatismo Neoproterozóico no Sul do Estado da Bahia, maciço sienítico serra das araras: geologia, petrografia, idade e geoquímica
title_full Magmatismo Neoproterozóico no Sul do Estado da Bahia, maciço sienítico serra das araras: geologia, petrografia, idade e geoquímica
title_fullStr Magmatismo Neoproterozóico no Sul do Estado da Bahia, maciço sienítico serra das araras: geologia, petrografia, idade e geoquímica
title_full_unstemmed Magmatismo Neoproterozóico no Sul do Estado da Bahia, maciço sienítico serra das araras: geologia, petrografia, idade e geoquímica
title_sort Magmatismo Neoproterozóico no Sul do Estado da Bahia, maciço sienítico serra das araras: geologia, petrografia, idade e geoquímica
author Rosa, Maria de Lourdes da Silva
author_facet Rosa, Maria de Lourdes da Silva
Conceição, Herbet
Macambira, Moacir José Buenano
Marinho, Moacyr Moura
Menezes, Rita Cunha Leal
Cunha, Mônica Prisgsheim da
Rios, Débora Correia
author_role author
author2 Conceição, Herbet
Macambira, Moacir José Buenano
Marinho, Moacyr Moura
Menezes, Rita Cunha Leal
Cunha, Mônica Prisgsheim da
Rios, Débora Correia
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Rosa, Maria de Lourdes da Silva
Conceição, Herbet
Macambira, Moacir José Buenano
Marinho, Moacyr Moura
Menezes, Rita Cunha Leal
Cunha, Mônica Prisgsheim da
Rios, Débora Correia
Rosa, Maria de Lourdes da Silva
Conceição, Herbet
Macambira, Moacir José Buenano
Marinho, Moacyr Moura
Menezes, Rita Cunha Leal
Cunha, Mônica Prisgsheim da
Rios, Débora Correia
dc.subject.por.fl_str_mv Pb-Pb age. Geology. Petrography. Geochemistry. Serra das Araras Syenitic Massif
Geologia. Petrografia. Idade Pb-Pb. Geoquímica. Maciço Sienítico Serra das Araras
topic Pb-Pb age. Geology. Petrography. Geochemistry. Serra das Araras Syenitic Massif
Geologia. Petrografia. Idade Pb-Pb. Geoquímica. Maciço Sienítico Serra das Araras
description p. 111-121
publishDate 2005
dc.date.issued.fl_str_mv 2005
dc.date.accessioned.fl_str_mv 2011-09-05T16:50:48Z
dc.date.available.fl_str_mv 2011-09-05T16:50:48Z
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dc.identifier.issn.none.fl_str_mv 2177-4382
dc.identifier.number.pt_BR.fl_str_mv 35(1)
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