Mantle upwelling and initiation of rift segmentation beneath the Afar Depression - Hammond, JOS; Kendall, J-M; Stuart, GW; Ebinger, CJ; Bastow, ID; Keir, D; Ayele, A; Belachew, M; Goitom, B; Ogubazghi, G; Wright, TJ (GEOLOGY, 2013)