Austral and East African Uplifts and Relief Growths, Paleoclimate Changes: A Tool for Predicting Offshore Sediments Location and Nature
Abstract
The topography of Austral and Eastern Africa (including Madagascar) is characterized by very long wavelength (several thousands of kilometers) plateaus and domes related to mantle dynamics: the Southern (Kalahari) Plateau, the Eastern (Kenyan) African and Ethiopian Domes and Madagascar Plateau. Our objective here is to discuss the relationships between the plateaus and domes growth since Early Cretaceous times, the climate (and mainly the precipitation) changes and the sediment supply along the passive margins.