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
14 - Environmental change during the Pleistocene and Holocene: Estuaries and lagoons of southern Africa
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
The South African coast contains abundant estuaries and lagoons, most of which originated as river valleys incised during Quaternary sea-level fall and subsequently drowned and/or infilled during rising interglacial sea levels. This chapter discusses these changes and highlights the geomorphological and sedimentological evolution of several southern African estuaries during the Pleistocene to present. The development, infilling and positioning of incised valley systems is mainly controlled by sea-level variation as well as fluvial and marine sediment supply. Most contemporary estuaries in southern Africa show dramatic responses to shorter term sea-level fluctuations and sediment supply during the Holocene. Barring anthropogenic interference, the dynamic behaviour of estuaries, dictated by their transient position and geomorphic character within an incised valley, is considered to fluctuate on centennial to millennial timescales.
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- Quaternary Environmental Change in Southern AfricaPhysical and Human Dimensions, pp. 219 - 233Publisher: Cambridge University PressPrint publication year: 2016
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