Evidence from Dwyka tillite cobbles of Archaean basement beneath the Kalahari sands of southern Africa
We have found a new source of information about what lies beneath the Kalahari sands. The Kheis and Rehoboth Provinces of southern Africa were thought to be underlain by either an similar to 1800 Ma orogenic belt, or a northern branch of the similar to 1200 Ma Namaqua-Natal Province. Glacial diamictites of the Permocarboniferous Dwyka Group exposed at Rietfontein west of the Kalahari sands carry c