On land, giant troughs such as the Great Rift Valley in Africa form where plates are tugged apart. If the plates there continue to diverge, millions of years from now eastern Africa will split ...

However, scientists predict that a sixth ocean could emerge due to the separation of the Somali Plate from the Nubian Plate in a region known as the Great Rift ... of tectonic plates that are ...

The movement of tectonic plates is a foundational geological process ... while the Gulf of Aden and the Red Sea could flood the East African Rift Valley, forming a new ocean.