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Most of the northern Red Sea and Gulf of Suez formed as a non-volcanic rift. This is in stark contrast to the Afar province far to the south where flood basalts several kilometers thick cover an area of >600,000km2. The Afar volcanism erupted coevally with the onset of Gulf of Aden rifting and the two events are generally thought to be genetically linked. The lack of northern Red Sea exposed volcanic...