Landscape evolution and equilibrium in Southern Africa : insights from cosmogenic noble gases in Karoo dolerites and geospatial analyses

Includes abstract. === Includes bibliographical references (p. 321-356). === Southern Africa’s landscape is characterised by a high plateau (elevation > 1,000 m) bound by escarpments and extensional continental margins, and the region has been influential in the development of geomorphological th...

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Bibliographic Details
Main Author: Decker, John E
Other Authors: De Wit, Maarten
Format: Doctoral Thesis
Language:English
Published: University of Cape Town 2015
Subjects:
Online Access:http://hdl.handle.net/11427/11706
Description
Summary:Includes abstract. === Includes bibliographical references (p. 321-356). === Southern Africa’s landscape is characterised by a high plateau (elevation > 1,000 m) bound by escarpments and extensional continental margins, and the region has been influential in the development of geomorphological theory. However, the evolution of this landscape in response to tectonic and climatic forcing remains poorly understood, and is investigated here though an analysis of the topography and surface exposure history of early Jurassic (~183 Ma) Karoo dolerites.