Book contents
- Quaternary Environmental Change in Southern AfricaPhysical and Human Dimensions
- Quaternary Environmental Change in Southern Africa
- Copyright page
- Contents
- Contributors
- 1 The context of Quaternary environmental change in southern Africa
- 2 A brief geological history of southern Africa
- 3 A continental-scale perspective on landscape evolution in southern Africa during the Cenozoic
- 4 Hominin origins and evolution during the Neogene
- 5 Hominin evolution in Africa during the Quaternary
- 6 Quaternary environmental change on the southern African coastal plain
- 7 Dating the southern African landscape
- 8 Glacial and periglacial geomorphology
- 9 Colluvial deposits and slope instability
- 10 Desert dune environments
- 11 Changes in fluvial systems during the Quaternary
- 12 Wetlands in southern Africa
- 13 Sandy coasts
- 14 Environmental change during the Pleistocene and Holocene: Estuaries and lagoons of southern Africa
- 15 Soils and duricrusts
- 16 Karstic systems
- 17 Terrestrial ecosystem changes in the late Quaternary
- 18 Faunal evidence for mid- and late Quaternary environmental change in southern Africa
- 19 Pollen, charcoal and plant macrofossil evidence of Neogene and Quaternary environments in southern Africa
- 20 Minerogenic microfossil records of Quaternary environmental change in southern Africa
- 21 Development of the archaeological record in southern Africa during the Earlier Stone Age
- 22 Development of the archaeological record during the Middle Stone Age of South Africa
- 23 Later Stone Age hunter-gatherers and herders
- 24 Southernmost Africans, archaeology and the environment during the Holocene
- 25 Landscape–climate–human relations in the Quaternary of southern Africa
- Index
- References
9 - Colluvial deposits and slope instability
Published online by Cambridge University Press: 05 June 2016
Book contents
- Quaternary Environmental Change in Southern AfricaPhysical and Human Dimensions
- Quaternary Environmental Change in Southern Africa
- Copyright page
- Contents
- Contributors
- 1 The context of Quaternary environmental change in southern Africa
- 2 A brief geological history of southern Africa
- 3 A continental-scale perspective on landscape evolution in southern Africa during the Cenozoic
- 4 Hominin origins and evolution during the Neogene
- 5 Hominin evolution in Africa during the Quaternary
- 6 Quaternary environmental change on the southern African coastal plain
- 7 Dating the southern African landscape
- 8 Glacial and periglacial geomorphology
- 9 Colluvial deposits and slope instability
- 10 Desert dune environments
- 11 Changes in fluvial systems during the Quaternary
- 12 Wetlands in southern Africa
- 13 Sandy coasts
- 14 Environmental change during the Pleistocene and Holocene: Estuaries and lagoons of southern Africa
- 15 Soils and duricrusts
- 16 Karstic systems
- 17 Terrestrial ecosystem changes in the late Quaternary
- 18 Faunal evidence for mid- and late Quaternary environmental change in southern Africa
- 19 Pollen, charcoal and plant macrofossil evidence of Neogene and Quaternary environments in southern Africa
- 20 Minerogenic microfossil records of Quaternary environmental change in southern Africa
- 21 Development of the archaeological record in southern Africa during the Earlier Stone Age
- 22 Development of the archaeological record during the Middle Stone Age of South Africa
- 23 Later Stone Age hunter-gatherers and herders
- 24 Southernmost Africans, archaeology and the environment during the Holocene
- 25 Landscape–climate–human relations in the Quaternary of southern Africa
- Index
- References
Summary
Abstract
Slope instability results from the interplay between tectonic uplift, climate-controlled weathering, and slope form (relief). Sediments accumulate as colluvium on footslopes when under the influence of gravity, fluvial processes and mass movements, and may be affected by pedogenesis, ecosystem change and human activity. This chapter shows that colluvial form and stratigraphy cannot be uncritically assigned to particular late Pleistocene and Holocene climatic periods, because of the feedbacks associated with weathering rate, vegetation responses to climate, and slope angle. Moreover, land surface instability and colluvial formation/incision is taking place due to contemporary environmental degradation, closely related to overgrazing.
- Type
- Chapter
- Information
- Quaternary Environmental Change in Southern AfricaPhysical and Human Dimensions, pp. 137 - 152Publisher: Cambridge University PressPrint publication year: 2016
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