Brazil Travel / Geology - During the Paleozoic,
Gondwana merged with
Laurasia, forming supercontinent
Pangea.
In this era, when the sea level was about 300 to 400 m higher than today, the syneclises (intercratonic sedimentary basins) of the
Neoproterozoic
South American Platform
were flooded by the sea (marine transgressions).
When you travel to
Brazil's Mid - West
region,
you will find evidences of these floodings for example in form of the the Devonian (400 Ma) layers of the
Ponta Grossa formation (Paraná supersequence) at Chapada dos Guimarães
National Park (
(
Paraná Basin / Mato Grosso).