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
15 - Soils and duricrusts
Published online by Cambridge University Press: 05 June 2016
- 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
Weathering is a climate-dependent mechanism whereby different physical, chemical and biological processes lead to regolith and soil formation. Pleistocene and Holocene climatic changes caused significant modification of formerly weathered soils, and hardened layers of substrata (duricrusts) which are now closely associated with scarps and mesas. This chapter outlines the main pedogenic processes, the role of time, and regional soil patterns in southern Africa. Major types of duricrusts (calcretes, silcretes, ferricretes) are briefly described, and their significance for long-term landscape evolution is discussed. Duricrusts are important landscape markers for understanding past, present and possibly future weathering, soil and erosion dynamics in sensitive, climate-controlled landscapes.
- Type
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- Information
- Quaternary Environmental Change in Southern AfricaPhysical and Human Dimensions, pp. 234 - 249Publisher: Cambridge University PressPrint publication year: 2016
References
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