Valter Salino Vieira

TL;DR: In this article, the authors presented new zircon SHRIMP (Sensitive High Resolution Ion Microprobe) U-Pb geochronological data for 19 key-exposures of several geological units exposed at the eastern border of the Southern Sao Francisco Craton and at the adjacent Proterozoic Mineiro and Aracuai orogens.

TL;DR: In this article, the authors presented new and revised information about the oldest Ediacaran granitic assemblage, the G1 Supersuite, which together with the Rio Doce Group defines the Rio doce magmatic arc, and then they proposed a new tectonic setting for the arc Field relationships and mineralogical compositions of the G 1 Supersuitite allow them to characterize three lithofacies associations, Opx-bearing rocks, enclave-rich Tonalite-Granodiorite and enclave-poor Granite-Tonalite, suggesting different

TL;DR: The Rio Doce Group (RDG) as mentioned in this paper includes four formations (from base to top): Palmital do Sul, Tumiritinga, Sao Tome, and Joao Pinto).

TL;DR: In this paper, the authors focus on the main deformation in the backarc region of the Aracuai Orogen (southeastern Brazil) and their relations to the main regional deformation, and correlate some massifs of undeformed garnet-biotitegranite to the Carlos Chagas Suite.