первоначальный рифтогенез(This phase of initial rifting may have been a result of back-arc extension related to early subduction along the paleo-Pacific margin.ArcticFox)
рифтовая окраина(Rifted margins mark a transition from continents to oceans; Geological Evolution of the southeastern Red Sea Rift margin: Republic of Yemen. Bulletin Geological Society of America,ArcticFox)