what type of boundary exists between the african plate and the south american plate?
Are the three major plates that border the South American Plate. The Nazca Plate is subducting under the South American Plate. The boundary between the African Plate and the South American Plate is a divergent boundary. The South American Plate is moving at more than 15 cm/yr. 1. The center of the South American Plate is the city of Brazilla, in Brazil.