<P> The rift is a narrow zone that is a developing divergent tectonic plate boundary , in which the African Plate is in the process of splitting into two tectonic plates , called the Somali Plate and the Nubian Plate , at a rate of 6 -- 7 mm annually . As extension continues , lithospheric rupture will occur within 10 million years , the Somalian plate will break off , and a new ocean basin will form . </P>
<P> The rift is a narrow zone that is a developing divergent tectonic plate boundary , in which the African Plate is in the process of splitting into two tectonic plates , called the Somali Plate and the Nubian Plate , at a rate of 6 -- 7 mm annually . As extension continues , lithospheric rupture will occur within 10 million years , the Somalian plate will break off , and a new ocean basin will form . </P>
the great east african rift valleys are an example of this type of plate boundary
the great east african rift valleys are an example of this type of plate boundary
a developing divergent tectonic plate boundary
a developing divergent tectonic plate boundary