Manoel Souza D'Agrella Filho

• Abstract

  This Project aims to establish the geodynamic evolution of the Amazonian Craton, the Rio Apa Block and the São Francisco Craton in the formation of supercontinents during Proterozoic, using key paleomagnetic poles and U-Pb geochronology in monominerals. The paleomagnetic data will allow test the geodynamic models proposed for these cratonic units, placing them in global paleogeographic re…

  Paleomagnetic study of geological units from South America: implications to the formation of Columbia and Rodinia supercontinents, AP.R

• Abstract

  The main purpose of this project is to elucidate the geodynamic evolution of the Amazonian Craton and Rio Apa Block in the formation of paleocontinents during the Proterozoic, using key paleomagnetic poles, and monomineral U-Pb geochronology. Geodynamic models proposed for the craton in global paleogeographic reconstructions (supercontinents) will be tested by the paleomagnetic data. The …

  The Amazonian Craton and the Rio Apa Terrane in paleocontinents based on paleomagnetic studies of Proterozoic geological units., AP.R
• 4th Bienial Meeting Latinmag 2015, AO.R

(Only some records are available in English at this moment)

• Abstract

  The objective of this Project is to perform the paleomagnetic and anisotropy of magnetic susceptibility (AMS) study of acid volcanic, subvolcanic, pyroclastic and epiclastic rocks (rhyolites, ignimbrites and dacites) from the Novo Horizonte Formation, situated in the Bahia State (São Francisco Craton). These rocks are associated to the initial Espinhaço rifting, occurred at about 1750 Ma.…

  Paleomagentic and anisotropy of magnetic susceptibility (AMS) study of the 1752 ma acid rocks from the Novo Horizonte Formation (Bahia), BP.IC

• Abstract

  During Paleoproterozoic (1.98 to 1.78 Ga) anorogenic plutonism AMGC type designated by the event Uatuma covers a vast area of northern Amazonian craton. Locally, the event has received other names, such as Surumu, Iriri, Sobreiro and Colider, exposed in the states of Roraima (Group Surumu), Para (Group Iriri, Sobreiro) and Mato Grosso (Group Iriri and Intrusive Suite Colider). Surumu Grou…

  Paleomagnetism and petrogenesis of Paleoproterozoic units from the Uatumã event in the northern Amazonian Craton, BP.DR

• Abstract

  In recent years, several authors proposed the existence of a Paleoproterozoic supercontinent, named Columbia, but its amalgamation, duration and disruption still cause many controversies. In South America, Amazonian Craton is a key component in the Columbia supercontinent paleogeography, but, scarcity and poor quality of paleomagnetic and geological data make it difficult to test paleogeo…

  The Amazonian Craton and the supercontinent Columbia: paleogeographic implications based on the paleomagnetic study of Paleo-mesoproterozoic geological units, BP.PD

• Abstract

  The Amazonian Craton is one of the largest pieces of the Columbia "puzzle". It covers almost half the surface of Brazil and some parts of Bolivia, Colombia, Venezuela, Guyana, Suriname and French Guiana in South America. Its geological evolution is unique compared to that of other cratons in the continent, bearing more similarities with the evolution of Laurentia, Baltica, and West Africa…

  Paleomagnetism and petrogenesis of Paleoproterozoic units from the Uatumã event in the northern Amazonian Craton, BE.EP.DR