Abstract

The northeast Brazilian microplate, a key element in the continental breakup between South America and Africa, was detached from both continents by the early Cretaceous rifting event. From Africa it became separated by the NE-trending, divergent, left-lateral Sergipe – Alagoas shear zone; from South America by the reactivation of the E – W trending, right-lateral Pernambuco shear zone and by the N – S trending Recôncavo – Tucano rift. The rifts and pull-apart basins bordering the microplate provide most of Brazil's oil produced on land.

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