The continental crust is unique to the Earth in the solar system, and controversies remain
regarding its origin, accretion and reworking of continents. The plate tectonics theory has …

80% of the continental crust was produced during the 4.0–2.0 Ga time span, but the
preserved area of Archean/early Paleoproterozoic cratons is smaller than 40%. Part of this …

Abstract Both the Borborema Province of NE Brazil and the geological provinces of NW
Africa (the Trans-Saharan Orogen consisted of the Tuareg and Benino-Nigerian shields and …

The São Francisco craton in eastern Brazil hosts sedimentary sequences deposited
between the Paleoarchean (∼ 3300 Ma) and Late Neoproterozoic (∼ 580 Ma). Proterozoic …

The Congo (CC) and the São Francisco (SFC) cratons were joined at about 2.05 Ga;
northern parts of Palaeoproterozoic basement subsequently underwent extension at about 1 …

The Neoproterozoic Araçuaí-West Congo (A-WC) orogen is one of many Brasiliano/Pan-
African orogens that developed during the assembly of West Gondwana. This orogen was …

New U–Pb in situ zircon dating provides a new approach for the study of the Espinhaço
Supergroup units exposed in the São Francisco Craton and Araçuaí Orogen. Located in …

The Araçuaí–West Congo orogen encompasses orogenic domains located to the SE of the
São Francisco Craton in Brazil, and to the SW of the Congo Craton in Africa. From the …

Almost all economic manganese ores are ultimately or directly derived from hydrothermal
vents associated with intermediate volcanic rocks. This source is in contrast to deep-sea …

The Central African Cratons comprise various Archaean and Palaeoproterozoic blocks,
flanked or truncated by orogenic belts ranging in age from Palaeoproterozoic (Rusizian …