Formação Serra da Bocaina: Contribuição do vulcanismo paleoproterozoico do arco magmático Amoguijá no bloco Rio Apa, Sul do Cráton Amazônico

From microanalysis to supercontinents: Insights from the Rio Apa Terrane into the Mesoproterozoic SW Amazonian Craton evolution during Rodinia assembly

“…Although the magmatic evolution of the RAT is well investigated (e.g., Brittes et al, 2013; Dos Santos et al, 2019; Lacerda Filho et al, 2016; Manzano et al, 2012; Plens, 2018; Plens et al, 2013; Souza et al, 2017), the tectono‐metamorphic evolution is uncertain. It is proposed that the RAT consolidated as a single coherent and stable tectonic unit at c .…”

“…Although the magmatic evolution of the RAT is well investigated (e.g., Brittes et al, 2013;Dos Santos et al, 2019;Lacerda Filho et al, 2016;Manzano et al, 2012;Plens, 2018;Plens et al, 2013;Souza et al, 2017), the tectono-metamorphic evolution is uncertain. It is proposed that the RAT consolidated as a single coherent and stable tectonic unit at c. 1.67 Ga on the basis of whole-rock Rb-Sr ages, interpreted to record a medium-to high-grade metamorphic event inferred to be related to amalgamation of the RAT (Cordani et al, 2010).…”