West and Central African Rift System
The West and Central African Rift System (WCARS) is a rift system composed of two coeval Cretaceous rift sub-systems, the West African Rift sub-system (WAS) and the Central African Rift sub-system (CAS). These are genetically related, but are physically separated and show structural differences.
Source: Wikipedia — West and Central African Rift System (CC BY-SA 4.0)