Brazil Travel / Geology - When you travel through
Southeast Brazil
you can find Neoproterozoic traces for instance in form of the granitc intrusive rocks, which outcrop all over the
Mar /
Mantiqueira mountain chains.
During the Neoproterozoic, these rocks were part of supercontinent
Gondwana which was formed through convergence,
collision and fusion of fragments of
Rodinia / Pannotia, the preceding supercontinents
(see also
Proterozoic).
The amalgation of West Gondwana (prototypes of
South America and Africa
united in one continent, prior to the opening of the South Atlantic) occured during the
Brasiliano - Pan African
orogenic cycle (850 - 500 Ma).