Mesoarchean migmatites of the Carajás Province: From intra-arc melting to collision

Geothermobarometry and geochemical modeling of Archean charnockites from Carajás Province, Amazonian craton, Brazil

“…In contrast to the first two domains above, the Canaã dos Carajás domain displays a more heterogeneous lithology (Feio et al 2012) and represents a high-grade granulitic terrane with complex geologic evolution (Pidgeon et al 2000, Marangoanha et al 2019a, Silva et al 2021. Mesoarchean units (3.06-2.83 Ga) are composed of granulites, orthogneisses, migmatites, tonalites, trondhjemites, and granites (Machado et al 1991, Avelar et al 1999, Pidgeon et al 2000, Moreto et al 2011, Melo et al 2014, Rodrigues et al 2014, Marangoanha et al 2019a, Silva et al 2021.…”

“…1). In general, this portion of the crust evolved after Mesoarchean and Neoarchean events, marked by magmatism, metamorphism, hydrothermalism, and deformation episodes (Pidgeon et al 2000, Moreto et al 2011, Feio et al 2012, Cunha et al 2016, Oliveira et al 2018, Marangoanha et al 2019a, 2019b, Silva et al 2021. A detailed study from Marangoanha et al (2019a) identified three specific Archean events responsible for the Canaã dos Carajás domain formation and cratonization as follows:…”