2014
DOI: 10.18190/1980-8208/estudosgeologicos.v24n2p89-107
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Metasedimentary rocks of the northern portion of thema Cururé domain, Sergipano belt, Northeastern Brazil: geochemical characterization of their protoliths and tectonic implications

Abstract: Caracterização dos protólitos de rochas metaclásticas de unidades metamórficas do domínio Macururé, Cinturão Sergipano, com base em elementos maiores e traços, é discutida neste trabalho. Dados geoquímicos para essas rochas metassedimentares indicam predominância de grauvacas nos protólitos que contem também folhelhos e arcóseos subordinados. Elementos maiores, traços e terras raras sugerem fonte para estas rochas com composição da crosta superior média para os protólitos das rochas metassedimentares deste dom… Show more

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Cited by 6 publications
(3 citation statements)
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“…The studied plutons constitute NE-SW elongate intrusions along the boundary of the Pernambuco-Alagoas and Sergipano domains, limited to the south/southeast by the Jacaré dos Homens transpressional shear zone (JHSZ) (Fig. 2) (De , Mendes et al 2009, Lima et al 2014. The Major Isidoro pluton is in sharp contact to the north with the Poço da Cacimba, and to the west with the Monteirópolis plutons (Silva et al 2016, Lima 2019.…”
Section: Field Relationships and Petrographymentioning
confidence: 99%
“…The studied plutons constitute NE-SW elongate intrusions along the boundary of the Pernambuco-Alagoas and Sergipano domains, limited to the south/southeast by the Jacaré dos Homens transpressional shear zone (JHSZ) (Fig. 2) (De , Mendes et al 2009, Lima et al 2014. The Major Isidoro pluton is in sharp contact to the north with the Poço da Cacimba, and to the west with the Monteirópolis plutons (Silva et al 2016, Lima 2019.…”
Section: Field Relationships and Petrographymentioning
confidence: 99%
“…O metamorfismo regional alcançou o fácies anfibolito, sob pressões intermediárias e altas temperaturas (Davison e Santos, 1989;Silva et al, 1995). Dados geoquímicos de rocha total sugerem que essas rochas foram geradas a partir da erosão de fontes ácidas a intermediárias com assinatura de ambientes de margem continental ativa (Lima et al, 2014). Idades de zircões detríticos indicam fontes dominantemente paleoproterozoicas e neoproterozoicas para o Grupo Macururé Spalletta e Oliveira, 2017) e sugerem que a Província Borborema atuou como principal área-fonte de proveniência desses sedimentos.…”
Section: Contexto Geológico Regionalunclassified
“…The sedimentary sequence of the Macururé Group was interpreted as a Neoproterozoic turbiditic wedge (D'el-Rey Silva 1999, based on the presence of structures indicative of deepwater deposition (Davison & Santos 1989). Whole-rock geochemical data indicate that clastic sedimentation has been related to the erosion of intermediate to acidic sources with magmatic arc signature (Lima et al 2014), possibly derived from the Borborema Province. Regional metamorphism reached intermediate P and high T in amphibolite facies (Davison & Santos 1989, Silva et al 1995, although equivalent granulites are recognized in the northernmost part of the domain (Oliveira et al 2006).…”
Section: Introductionmentioning
confidence: 99%