The movement of the plates creates three types of tectonic boundaries: convergent ... On land, giant troughs such as the Great Rift Valley in Africa form where plates are tugged apart.

The shallow waters of the rift valley can be ideal environments for limestones to form. Here is a nice summary of sedimentation on divergent margins ... New ocean floor is generated at the diverging ...

Earth's five oceans were formed by the constant movement of tectonic plates beneath us, and the same process is already forming a sixth ocean in East Africa.

North Rift Economic Bloc (NOREB) leaders have condemned conflicts brewing along boundaries of Baringo ... and security bosses led by Rift Valley Regional Commissioner George Natembeya, condemned ...