Geological Travel

Brazil Tours / Geology - After Ur (3 Ga) and Arctica (2,5 Ga), other archean microcontinents merged during the Paleoproterozoic Transamazonian orogenic cycle, forming Atlantica (2 Ga).

Later, Atlantica merged with Rodinia and Gondwana / Pangea. Nowadays, the fragments of this ancient continent can be found in form of large cratonic masses in South America (Rio da Plata, São Francisco, Amazon) and Africa.

Source: A history of continents in the past three billion years (John J. W. Rogers, 1996)