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Chapter 1 - High Africa: Eroding Surfaces
from Part I - The Physical Cradle: Land Forms, Geology, Climate, Hydrology and Soils
Norman Owen-Smith, University of the Witwatersrand, Johannesburg
Book:

Only in Africa

Published online:

09 September 2021

Print publication:

07 October 2021, pp 5-13
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Summary

This chapter establishes how mantle plumes elevated the interior of eastern and southern Africa and generated predominantly eroding land surfaces. Depositional basins were restricted mainly to the Congo, Kalahari, interior South Africa and offshore. It outlines the origins of the African rift valley and its propagation southward. This sets the tectonic context for climates, river flow, geological substrates, volcanism and soil fertility.