Image: Pilanesberg, South Africa
Friday, July 14, 2017 - 09:52
in Earth & Climate
The circular structure dominating this Sentinel-2 image is Pilanesberg, the result of geological activity over more than a billion years. Once a massive volcanic complex towering over 7000 m tall, millions of years of erosion have shaped the landscape to what it is today: concentric rings of hills rising from the surrounding plain, with a diameter of some 25 km.