Geochemistry of the Northern Parana Continental Flood Basalt (PCFB) Province: implications for regional chemostratigraphy

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dc.contributor.authorMachado, Fabio Braz
dc.contributor.authorViana Rochai-Junior, Eduardo Reis
dc.contributor.authorMarques, Leila Soares
dc.contributor.authorRanalli Nardy, Antonio Jose [UNESP]
dc.contributor.authorZezzo, Larissa Vieira [UNESP]
dc.contributor.authorMarteleto, Natasha Sarde
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionUniversidade Federal da Bahia (UFBA)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-26T16:04:30Z
dc.date.available2018-11-26T16:04:30Z
dc.date.issued2018-04-01
dc.description.abstractThe Parana Continental Flood Basalt (PCFB) province is one of the largest igneous provinces on Earth, but little is known about the architecture and geochemical characteristics of the lava flows. In this context, a set of borehole samples arranged in an NEE-SWW profile - more than 600 km long - located in the northern PCFB was used to define its chemostratigraphy. In this region, the outcrops are rare, and the volcanic piles are covered by hundreds of meters of sedimentary rocks from the Bauru Sub-Basin. This study aimed to explore the chemostratigraphic column from northern PCFB to improve the understanding of its internal architecture and to characterize the flood basalt sequences by using the petrography and elemental geochemistry of surface and borehole samples. The results showed the presence of the main four magma types, which were essentially distinguished by their P2O5, TiO2 and Sr concentrations, as well as Zr/Y ratios, with excellent chemostratigraphy relations.en
dc.description.affiliationUniv Fed Sao Paulo, Inst Ciencias Ambientais, Dept Ciencias Ambientais, Sao Paulo, SP, Brazil
dc.description.affiliationUniv Fed Bahia, Dept Fis Terra & Meio Ambiente, Inst Fis, Salvador, BA, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Sao Paulo, SP, Brazil
dc.description.affiliationUniv Estadual Paulista Julia Mesquita Filho, Inst Geociencias & Ciencias Exatas, Rio Claro, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Geociencias, Sao Paulo, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista Julia Mesquita Filho, Inst Geociencias & Ciencias Exatas, Rio Claro, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCNPq: 482911/2011-5
dc.description.sponsorshipIdFAPESP: 2012/06082-6
dc.format.extent177-199
dc.identifierhttp://dx.doi.org/10.1590/2317-4889201820180098
dc.identifier.citationBrazilian Journal Of Geology. Sao Paulo: Soc Brasileira Geologia, v. 48, n. 2, p. 177-199, 2018.
dc.identifier.doi10.1590/2317-4889201820180098
dc.identifier.fileS2317-48892018000200177.pdf
dc.identifier.issn2317-4889
dc.identifier.scieloS2317-48892018000200177
dc.identifier.urihttp://hdl.handle.net/11449/160443
dc.identifier.wosWOS:000438911600001
dc.language.isoeng
dc.publisherSoc Brasileira Geologia
dc.relation.ispartofBrazilian Journal Of Geology
dc.relation.ispartofsjr0,608
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectParana Continental Flood Basalts
dc.subjectchemostratigraphy
dc.subjectvolcanic successions
dc.subjectmagma types
dc.subjectgeochemistry of boreholes
dc.titleGeochemistry of the Northern Parana Continental Flood Basalt (PCFB) Province: implications for regional chemostratigraphyen
dc.typeArtigo
dcterms.rightsHolderSoc Brasileira Geologia

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