craton South America 16 Rio de la Plata 14 Proterozoic 12 paleomagnetism 12 Uruguay 8 paleogeography 8 Argentina 6 Brazil 6 Cratons 6 Ediacaran 6 Gondwana 6 apparent polar wander path 6 magnetotelluric method 6 Amazonia 4 Andes 4 Cambrian 4 Dom Feliciano Belt 4 Magnetotelluric 4 Palaeomagnetism applied to tectonics 4 Paleomagnetism 4 Permian-Triassic boundary 4 Punta del Este 4 Remagnetization 4 Rio Grande do Sul 4 SouthAmerica 4 Structural geology 4 continental margin 4 data inversion 4 electrical resistivity 4