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Abstract This paper presents the first U–Pb and Sm–Nd data for the gneisses of the high-grade Uruacu Complex, exposed in the northern part of the Neoproterozoic Brasilia Belt, central Brazil.Continue Reading
The Limoeiro deposit, located in a high-grade mobile belt of the Brasiliano orogenic cycle (650–500 Ma), represents one of the few magmatic Ni-Cu(-PGE) sulfide discoveries in recent years. TheContinue Reading
Abstract Zircon recrystallization is a common process during high-grade metamorphism and promotes partial or complete resetting of the original isotopic and chemical characteristics of the mineralContinue Reading
Abstract Dating granulites has always been of great interest because they represent one of the most extreme settings of an orogen. Owing to the resilience of zircon, even in such severe environments,Continue Reading
Abstract The Campinorte Arc is a poorly exposed 2.19–2.07 Ga Paleoproterozoic terrane in contact with the Neoproterozoic Goias Magmatic Arc by the Rio dos Bois Fault in the northern Brasilia Belt,Continue Reading
  • Cláudia Tharis Augustin, Maria Emilia Schutesky Della Giustina
  • Geology
  • 2019 (First Publication: 1 March 2019)
  • Abstract Inserted in the context of the Goias Magmatic Arc, the Mangabal Complex represents a partially metamorphosed mafic-ultramafic intrusion, which is part of a cluster of neoproterozoic layeredContinue Reading
    Abstract The Sao Tome mafic-ultramafic intrusion, located in the Borborema Province, NE Brazil, consists of a group of metamorphosed dismembered intrusive rocks, composed of ol-websterite andContinue Reading