Quaternary Environmental Change in Southern Africa :Physical and Human Dimensions

Publication subTitle :Physical and Human Dimensions

Author: Jasper Knight; Stefan W. Grab  

Publisher: Cambridge University Press‎

Publication year: 2016

E-ISBN: 9781316572900

P-ISBN(Paperback): 9781107055797

Subject: P532 Paleo - climatology

Keyword: 环境污染及其防治

Language: ENG

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Quaternary Environmental Change in Southern Africa

Description

Ongoing climate change necessitates advances in our understanding of the interrelationships between climate, landscape-shaping processes and human activity over long time periods, especially in areas that are already climatically stressed. This volume presents new ideas on macroscale landscape evolution; mountain, fluvial and aeolian processes; and environments in southern Africa, a key region in the story of human evolution during the last two million years. Interdisciplinary in scope, it brings together an international team of experts to synthesise the latest research and understanding of landscape-human relationships in this region. It incorporates results from the emerging fields of geoarchaeology and cultural landscapes and utilises the latest data and analytical techniques. A key reference for researchers studying hominid evolution, geoarchaeology and environmental change, it provides a benchmark study of southern African landscape evolution during the Quaternary. It will also appeal to professionals and policymakers with interests in future human-landscape evolution in southern Africa.

Chapter

3.2.2 Rifts

3.3 Dating the African land surface

3.4 Landscape responses to Cenozoic climate changes

3.4.1 Erosional responses: the African Surfaces

3.4.2 Residual deposits

3.4.3 Depositional responses: fans

3.4.4 Marine deposition

3.5 Discussion

3.6 Summary

Acknowledgements

References

4 Hominin origins and evolution during the Neogene

Abstract

4.1 Introduction

4.2 Origin of the basal hominins

4.3 Diversification of the archaic hominins

4.4 Dispersal of hominins into South Africa

4.5 Summary

Acknowledgements

References

5 Hominin evolution in Africa during the Quaternary

Abstract

5.1 Introduction

5.2 The emergence of genus Homo

5.3 Paranthropus and the ‘robust’ australopithecine hypodigm

5.4 Emergence of modern humans

5.5 Summary

Acknowledgements

References

6 Quaternary environmental change on the southern African coastal plain

Abstract

6.1 Introduction

6.2 Palaeoenvironments of the coastal plain

6.3 Life on the edge: The coastal plain and human evolution

6.4 Summary

References

7 Dating the southern African landscape

Abstract

7.1 Introduction

7.2 The most commonly used dating techniques

7.3 Dating the evolution of the southern African landscape

7.3.1 Denuding landscapes

7.3.2 Aggrading deposits

7.3.3 Palaeoanthropology and archaeological deposits

7.3.4 Palaeoclimate

7.4 Discussion

7.4.1 Interpretation of the dating context

7.4.2 Insight into the suitability of the dating technique to the target event

7.4.3 Reproducibility, consistency, and a body of evidence

7.5 Summary

References

8 Glacial and periglacial geomorphology

Abstract

8.1 Introduction

8.2 Setting the scene

8.3 Proponents for southern African glaciation during the late Pleistocene: a brief history

8.4 The opponent view to southern African glaciation during the late Pleistocene

8.5 Glacial depositional landforms in the Drakensberg

8.6 Palaeoclimate implications of late Pleistocene glaciation in southeastern Africa

8.7 Periglacial phenomena

8.8 Discussion

8.9 Summary

Acknowledgements

References

9 Colluvial deposits and slope instability

Abstract

9.1 Introduction

9.2 Slope processes in the long-term landscape evolution of southern Africa

9.3 Colluvial processes

9.3.1 Hillslope colluviation

9.3.2 Distribution of colluvium in southern Africa

9.3.3 Dating of colluviation

9.4 Palaeoenvironmental interpretation of colluvial and slope deposits

9.4.1 Present-day dynamics: land surface degradation

9.5 Summary

References

10 Desert dune environments

Abstract

10.1 Introduction

10.2 Southern African dunes as Quaternary palimpsests

10.2.1 Quaternary aridity

10.2.2 Wind

10.2.3 Dune origins

10.2.4 A date with dunes

10.3 Dune sensitivity and complex development

10.4 Regional records

10.4.1 Kalahari dunes

10.4.2 Namib and West Coast

10.4.3 Other dunes

10.5 Summary

References

11 Changes in fluvial systems during the Quaternary

Abstract

11.1 Introduction

11.2 Regional environmental setting

11.3 Nature and drivers of fluvial system responses

11.3.1 Pre-Quaternary and Quaternary fluvial system responses in southern Africa: an overview

11.3.2 Late Quaternary fluvial system responses in southern Africa: climatic versus non-climatic drivers

11.3.3 Holocene fluvial system responses in southern Africa: large and extreme flood events

11.4 Discussion

11.4.1 Fluvial system sensitivity to palaeoenvironmental change

11.4.2 Relative importance of natural and anthropogenic drivers in the late Holocene

11.5 Summary

Acknowledgements

References

12 Wetlands in southern Africa

Abstract

12.1 Introduction

12.2 Controls on wetland types and their dynamics

12.2.1 Valley-bottom and floodplain wetlands

12.3 Environmental and climatic records from wetlands

12.4 Sensitivity of wetlands to climate and environmental changes

12.5 Summary

References

13 Sandy coasts

Abstract

13.1 Introduction

13.2 Regional setting

13.3 Lithified Quaternary sediments

13.3.1 Erosional features

13.3.2 Depositional features

13.4 Quaternary coastal and sea-level change

13.5 Summary

References

14 Environmental change during the Pleistocene and Holocene: Estuaries and lagoons of southern Africa

Abstract

14.1 Introduction

14.2 Origins of South African estuaries

14.3 Quaternary estuarine evolution: Sea-level change and sedimentation

14.4 Estuaries of previous interglacial highstands

14.5 Lowstand deltas, estuaries and incised valleys

14.6 Holocene estuarine deposits on the continental shelf

14.7 Late Holocene estuary evolution

14.7.1 East coast

14.7.2 West coast

14.8 Sediment supply, sea-level rise and valley geometry

14.9 Summary

References

15 Soils and duricrusts

Abstract

15.1 Introduction

15.2 Weathering and soils

15.2.1 Factors significant in pedogenesis

15.2.2 Soils and geomorphology

15.3 Soils and landscape units in South Africa

15.4 Duricrusts

15.4.1 Calcretes

15.4.2 Silcretes

15.4.3 Ferricretes

15.5 Economic importance of duricrusts

15.6 Summary

Acknowledgements

References

16 Karstic systems

Abstract

16.1 Introduction

16.2 The distribution of karst in southern Africa

16.3 Caves and speleothems as archives of the past

16.4 High-resolution palaeoenvironmental time-series from speleothems

16.5 Summary

References

17 Terrestrial ecosystem changes in the late Quaternary

Abstract

17.1 Introduction

17.2 Late Pleistocene climate and ecosystems in southern Africa

17.2.1 Summer rainfall zone

17.2.2 Winter rainfall zone

17.3 Holocene climate and ecosystems

17.3.1 Summer rainfall zone

17.3.2 Winter rainfall zone

17.4 Human impacts on terrestrial ecosystems

17.5 Summary

References

18 Faunal evidence for mid- and late Quaternary environmental change in southern Africa

Abstract

18.1 Introduction

18.2 Mammalian turnover and biogeography in southern Africa

18.3 The southern African faunal record

18.3.1 The end of the early Pleistocene: the Cornelian LMA

18.3.2 Black wildebeest Connochaetes gnou as a proxy for open habitat

18.3.3 The middle and late Pleistocene: the Florisian LMA

18.3.4 Florisian wetlands and the end-Pleistocene extinction

18.4 Summary

References

19 Pollen, charcoal and plant macrofossil evidence of Neogene and Quaternary environments in southern Africa

Abstract

19.1 Introduction

19.1.1 The major biomes of South Africa during the Neogene

19.2 Quaternary case studies

19.2.1 Tswaing (I and II) and Wonderkrater: Savanna Biome

19.2.2 Braamhoek and Mahwaqa: Grassland Biome

19.2.3 Mfabeni peatland, Lakes Sibaya and Eteza: Indian Ocean Coastal Belt Biome (IOCB)

19.2.4 Cederberg: Fynbos Biome

19.2.5 Macrobotanical remains: Fynbos, Savanna and IOCB

19.3 Future research directions and potential

19.4 Summary

References

20 Minerogenic microfossil records of Quaternary environmental change in southern Africa

Abstract

20.1 Introduction

20.2 Microfossil types and their environmental significance

20.2.1 Siliceous microfossils

20.2.2 Calcareous microfossils

20.3 Southern African microfossils: Case studies

20.3.1 Braamhoek wetland, South Africa

20.3.2 Lake Tritrivakely, Madagascar

20.3.3 Makgadikgadi, Botswana

20.3.4 Offshore Namibia

20.4 Discussion

20.5 Summary

References

21 Development of the archaeological record in southern Africa during the Earlier Stone Age

Abstract

21.1 Introduction

21.2 The earliest archaeology

21.2.1 Oldowan (2.6-1.76 Ma)

21.2.2 Early Acheulean (1.76->1 Ma)

21.2.3 Assessment of the early archaeology record

21.3 The Acheulean from ~1 Ma

21.4 Summary

References

22 Development of the archaeological record during the Middle Stone Age of South Africa

Abstract

22.1 Introduction and background

22.2 Technological behaviour in the Middle Stone Age

22.3 Subsistence behaviour and site maintenance

22.4 Discussion and summary

Acknowledgements

References

23 Later Stone Age hunter-gatherers and herders

Abstract

23.1 Introduction

23.2 The Pleistocene/Holocene transition

23.3 The Holocene Later Stone Age: toolkits, diet, and society

23.4 Later Stone Age herders

23.5 Hunter-gatherers and farmers

23.6 Summary

References

24 Southernmost Africans, archaeology and the environment during the Holocene

Abstract

24.1 Archaeologists, environment and climate

24.2 Economic transformations, environment and settlement distribution

24.3 Social strategies and resilience

24.4 Living on the edge in the Eastern Cape

24.5 The rise and decline of the K2-Mapungubwe state

24.6 The mfecane

24.7 Summary

References

25 Landscape-climate-human relations in the Quaternary of southern Africa

Abstract

25.1 Introduction

25.2 Landscapes and climate

25.3 Climate and human activity

25.4 Landscapes and human activity

25.5 Discussion and future research directions

25.5.1 The concerns of archaeological research

25.5.2 Climate and environmental change and the landscape record

25.5.3 Resolving landscapes and human activity: geoarchaeology and its limitations

25.6 Summary

Acknowledgements

References

Index

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