A My Addo Karoo Supergroup selected video for you:
The Drakensberg is stupendous. The highest mountain range in South Africa, it is geologically distinctive and looks like no other massif in the world, except perhaps the Simien Mountains of Ethiopia. During Precambrian times, volcanic eruptions resulted in lava covering large sections of the Southern African sub-continent. In the Palaeozoic Era, wind and water deposited thick layers of shale, mudstone and sandstone, now known as the Karoo Supergroup, over the ancient primary rock. When Gondwanaland began to break up 200 million years ago, the resultant forces caused the extrusion of magma, known as Drakensberg lava, through fissures and cracks in the Earth’s surface. In the Drakensberg region this capped the sedimentary rock formations with layers of solid basalt up to 1400 m thick. Weathering reduced the range’s size, and caused the plateau to recede. In modern times, continued erosion has exposed some of the underlying sediment. Motoring on from the Drakensberg, I passed acres and acres of tobacco plantation.
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