Brazil Eco Adventure Tours
Rainforest - Hiking & Biking - Wildlife

During Proterozoic times, Ur, Arctica, Atlantica, Nena and fragments of them interacted and reassembled in different configurations to so - called supercontinents. The most famous are Columbia (1,8 - 1,5 Ga), Rodinia (1,1 Ga - 800 Ma), Gondwana (750 - 500 Ma) or Pangaea (Pangea) (450 - 250 Ma).

These interactions can be described by the so - called Wilson Cycle which is divided in a divergent stage (taphrogeny) involving rifting, drifting and ocean building and a convergent stage (orogeny) involving subduction (island arc and cordilleran type), collision (arc - continent and continent - continent) and mountain building.

West Gondwana (Proto- South America and Africa) assembled during the Neoproterezoic in the course of the Brasiliano - Pan African orogenic cycle.