Peter Christian Hackspacher

TL;DR: The Borborema Province of NE Brazil comprises the central part of a wide Pan-African-Brasiliano orogenetic belt that formed as a consequence of late Neoproterozoic convergence and collision of the Sao Luis-West Africa craton and the Sao Francisco-Congo-Kasai cratons as mentioned in this paper.

TL;DR: The risk of occurrence of adverse effects is highly possible, not only due to the dam failure, but alsodue to the Fe mining and the artisan Au mining, sustaining high inputs of SPM and metals for the years to come and threatening the ecosystem services.

TL;DR: The Serido Group is a deformed and metamorphosed metasedimentary sequence that overlies early Paleoproterozoic to Archean basement of the Rio Grande do Norte domain in the Borborema Province of NE Brazil as mentioned in this paper.

TL;DR: In this paper, U-Pb zircon data indicate that the earliest evidence of convergent magmatism along the northwest margin of the Borborema Province occurred around 777 Ma, and was followed by the development of a large continental arc batholith (Santa Quiteria batholith) between ca. 665 and 591 Ma within the central part of Ceara State.

TL;DR: The oldest fragment of continental crust recognized in South America occurs as an isolated Archean enclave in northeastern Brazil's Borborema Province, ca. 2.2-2.5 Ga and Sm-Nd TDM model ages of more than 3.7 Ga as discussed by the authors.