Aden-Afar is one of the study areas designated to focus the research actions of the Actions Marges project. Aden-Afar is the youngest triple junction point on the globe where three rifts, including two already with oceanic crust, are breaking up the continent under the influence of an active mantle plume. All expansion stages, from pre-rift to active oceanic accretion centres are represented, along with a variety of stretched continental margin segments, volcanic and non-volcanic, when moving away from the triple junction towards the Gulf of Aden or the Red Sea. In contrast, the heart of the volcanic province is the ultimate stage of continental breakup, the only place on land where the activity, the morphology and the segmentation of axial rifts are comparable to those of oceanic segments.
For Aden-Afar two following research themes has been defined for the 2012-2015 phase: