Shallow necking depth and differential denudation linked to post‐rift continental reactivation: The origin of the Cenozoic basins in southeastern Brazil

Abstract

1 The southeastern Brazilian margin presents renewed Cenozoic tectonism that created a 2 series of grabens and small sedimentary basins, known as the Continental Rift of South3 eastern Brazil. The formation of this rift occurred long after the South Atlantic ocean 4 opening and was attributed to different mechanisms like regional uplift induced by hotspot 5 activity, pulses of Andean orogeny, and reactivation of pre-existing faults. However, the 6 proposed models lack an analytical or numerical verification from a geodynamic point 7 of view. Based on finite element modeling of the lithospheric stress field evolution we 8 1 Page 1 of 20 For Review Only