Neoproterozoic sediments in southwestern Africa occur in the Pan-African Kaoko, Khomas, Gariep, Vanrhynsdorp and Saldania Belts. They were deposited in response to rifting, break-up of a supercontinent (formed at ∼ 1000 Ma) and subduction and collisions of the Congo, Kalahari, Rio de la Plata and Malvinas plates. These collisions led to the formation of a Neoproterozoic/Cambrian supercontinent. This paper deals with the geology of the platform successions of the Kaoko, Khomas, Gariep and Vanrhynsdorp Belts.