Geologic evidence shows that southern African has been slowly rising for the past 100 million years, yet it has not experienced a tectonic collision for nearly 400 million years.

地质证据显示，非洲南部的板块在过去的1亿年里一直在缓慢地上升，然而它在近4亿年里没有经历过一次构造碰撞。