Abstract
This PhD proposal is part of a major project (FAPESP 2017/08423-9) whose main aim is to study the magmatic events related to the evolution of the Atlantic continental margin during the Cretaceous and therefore to the break-up of the West Gondwana, presently exposed in the northeastern Brazil. These events are represented by: (1) a continental-scale arcuate mafic (dolerites) dike swarm tha…