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8 - Glacial and periglacial geomorphology

Published online by Cambridge University Press:  05 June 2016

Jasper Knight
Affiliation:
University of the Witwatersrand, Johannesburg
Stefan W. Grab
Affiliation:
University of the Witwatersrand, Johannesburg
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Summary

Abstract

The glacial and periglacial record of southern Africa during the Quaternary is limited to the highest-altitude areas of the Drakensberg and Cape Fold Belt, where late Pleistocene temperature depression in addition to uncertain changes in precipitation regime were sufficient in combination to develop small cirque glaciers and/or a range of periglacial features. This chapter reflects on past debates for and against Quaternary glaciations, and identifies research gaps in these debates. Geomorphological and sedimentary evidence for glacial and periglacial landforms is summarised in this chapter, and the climatic and environmental contexts in which they developed, where known, are explained. There remain significant gaps in our understanding of cold Quaternary events in high mountain areas of southern Africa, mainly due to an absence of reliable palaeoclimatic indicators, the sometimes inconclusive climatic signatures offered by periglacial landforms, and poor dating control. The Drakensberg and Cape Fold Belt still experience marginal periglacial climate conditions today, but are currently undergoing change due to both regional climate change and human-induced landscape alterations, thus future periglacial activity is likely to become further constrained in location and vigour.

Type
Chapter
Information
Quaternary Environmental Change in Southern Africa
Physical and Human Dimensions
, pp. 121 - 136
Publisher: Cambridge University Press
Print publication year: 2016

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References

Benn, D. I. and Ballantyne, C. K. (1994). Reconstructing the transport history of glaciogenic sediments: A new approach based on the co-variance of clast shape indices. Sedimentary Geology, 91, 215227.CrossRefGoogle Scholar
Boelhouwers, J. C. (1994). Periglacial landforms at Giant’s Castle, Natal Drakensberg, South Africa. Permafrost and Periglacial Processes, 5, 129136.CrossRefGoogle Scholar
Boelhouwers, J. C. (1999). Block deposits in southern Africa and their significance to periglacial autochthonous blockfield development. Polar Geography, 23, 1222.CrossRefGoogle Scholar
Boelhouwers, J. C. and Meiklejohn, I. (2002). Quaternary periglacial and glacial geomorphology of southern Africa: Review and synthesis. South African Journal of Science, 98, 4755.Google Scholar
Boelhouwers, J. C., Holness, S., Meiklejohn, I. and Sumner, P. (2002). Observations on a blockstream in the vicinity of Sani Pass, Lesotho Highlands, southern Africa. Permafrost and Periglacial Processes, 13, 251257.CrossRefGoogle Scholar
Booth, P. W. K. (2011). Stratigraphic, structural and tectonic enigmas associated with the Cape Fold Belt: Challenges for future research. South African Journal of Geology, 114, 235248CrossRefGoogle Scholar
Borchert, G. and Sänger, H. (1981). Research findings of a Pleistocene glaciation of the Cape mountain-ridge in South Africa. Zeitschrift für Geomorphologie, 25, 222224.CrossRefGoogle Scholar
Chase, B. M. and Meadows, M. E. (2007). Late Quaternary dynamics of southern Africa’s winter rainfall zone. Earth-Science Reviews, 84, 103138.CrossRefGoogle Scholar
Cockcroft, M. J., Wilkinson, M. J. and Tyson, P. D. (1987). The application of a present-day climatic model to the late Quaternary in southern Africa. Climatic Change, 10, 161181.CrossRefGoogle Scholar
du Toit, A. L. (1937). Our Wandering Continents: An Hypothesis of Continental Drifting. London: Oliver & Boyd, 366pp.Google Scholar
du Toit, A. L. (1954). The Geology of South Africa. London: Oliver & Boyd, 611pp.Google Scholar
Dyer, T. G. J. and Marker, M. E. (1979). On some aspects of Lesotho hollows. Zeitschrift für Geomorphologie, 23, 256270.Google Scholar
Flint, R. F. (1959). Pleistocene climates of eastern and southern Africa. Bulletin of the Geological Society of America, 70, 343374.CrossRefGoogle Scholar
Gasse, F., Chalié, F., Vincens, A., Williams, M. A. J. and Williamson, D. (2008). Climatic patterns in equatorial and southern Africa from 30,000 to 10,000 years ago reconstructed from terrestrial and near-shore proxy data. Quaternary Science Reviews, 27, 23162340.CrossRefGoogle Scholar
Gellert, J. F. (1991). Pleistozän-kaltzeitliche Vergletscherungen im Hochland von Tibet und im südafrikanischen Kapgebirge. Eiszeitalter und Gegenwart, 41, 141145.Google Scholar
Grab, S. W. (1999). Block and debris deposits in the High Drakensberg, Lesotho, Southern Africa: Implications for high altitude slope processes. Geografiska Annaler, 81A, 116.Google Scholar
Grab, S. W. (2000). Stone-banked lobes and environmental implications, high Drakensberg, southern Africa. Permafrost and Periglacial Processes, 11, 177187.3.0.CO;2-R>CrossRefGoogle Scholar
Grab, S. W. (2002). Characteristics and palaeoenvironmental significance of relict sorted patterned ground, Drakensberg plateau, southern Africa. Quaternary Science Reviews, 21, 17291744.CrossRefGoogle Scholar
Grab, S. W. (2004). Thermal regime through a sorted circle and stone-banked lobe, Drakensberg, Southern Africa. Zeitschrift für Geomorphologie, 48, 501518.CrossRefGoogle Scholar
Grab, S. W. (2010). Alpine turf exfoliation pans in Lesotho, southern Africa: Climate-process-morphological linkages. Geomorphology, 114, 261275.CrossRefGoogle Scholar
Grab, S. W., Mulder, N. and Mills, S. C. (2009). Spatial associations between longest-lasting winter snow cover and cold region landforms in the high Drakensberg, southern Africa. Geografiska Annaler, 91A, 8397.CrossRefGoogle Scholar
Grab, S. W., Mills, S. C. and Carr, S. J. (2012). Periglacial and Glacial Geomorphology. In The Geomorphology of Southern Africa, ed. Holmes, P. and Meadows, M. E.. Bloemfontein: Sun Press, pp. 233265.Google Scholar
Hall, K. (2004). Glaciation in southern Africa. In Quaternary Glaciations: Extent and Chronology. Part III: South America, Asia, Africa, Australia, Antarctica, ed. Ehlers, J. and Gibbard, P. L.. Amsterdam: Elsevier, pp. 337338.Google Scholar
Hall, K. and Meiklejohn, I. (2011). Glaciation in southern Africa and in the sub-Antarctic. In Quaternary Glaciations: Extent and Chronology. Part III: South America, Asia, Africa, Australia, Antarctica, ed. Ehlers, J. and Gibbard, P. L.. Amsterdam: Elsevier, pp. 10811085.Google Scholar
Holmgren, K., Lee-Thorp, J. A., Cooper, G. R. J., Lundblad, K., Partridge, T. C., Scott, L., Sithaldeen, R., Talma, A. S. and Tyson, P. D. (2003). Persistent millennial-scale climatic variability over the past 25 000 years in southern Africa. Quaternary Science Reviews, 22, 23112326.CrossRefGoogle Scholar
Holzförster, F. (2007). Lithology and depositional environments of the Lower Jurassic Clarens Formation in the eastern Cape, South Africa. South African Journal of Geology, 110, 543560.CrossRefGoogle Scholar
Isbell, J. L., Cole, D. I. and Catuneanu, O. (2008). Carboniferous-Permian glaciation in the main Karoo Basin, South Africa: Stratigraphy, depositional controls, and glacial dynamics. In Resolving the Late Paleozoic Ice Age in Time and Space, ed. Fielding, C. R., Frank, T. D. and Isbell, J. L.. Geological Society of America Special Publication, 441, pp. 7182.CrossRefGoogle Scholar
Jourdan, F., Féraud, G., Bertrand, H., Watkeys, M. K. and Renne, P. R. (2007). Distinct brief major events in the Karoo large igneous province clarified by new 40Ar/39Ar ages on the Lesotho basalts. Lithos, 98, 195209.CrossRefGoogle Scholar
Knight, J. (2012). The shape of glacial valleys: Comment on Hall (2010). South African Geographical Journal, 94, 13.CrossRefGoogle Scholar
Kojot, D. F. (1948). An Investigation into the Evidence Bearing on Recent Climate Changes over South Africa. Pretoria: South Africa Irrigation Department Memoir, Government Printer, 160pp.Google Scholar
Lewis, C. A. and Hanvey, P. M. (1993). The remains of rock glaciers in Bottelnek, East Cape Drakensberg, South Africa. Transactions of the Royal Society of South Africa, 48, 265289.CrossRefGoogle Scholar
Lewis, C. A. and Illgner, P. M. (2001). Late Quaternary glaciation in southern Africa: Moraine ridges and glacial deposits at Mount Enterprise in the Drakensberg of the Eastern Cape Province, South Africa. Journal of Quaternary Science, 16, 365374.CrossRefGoogle Scholar
Marker, M. E. (1991). The evidence for cirque glaciations in Lesotho. Permafrost and Periglacial Processes, 2, 2130.CrossRefGoogle Scholar
Marker, M. E. and Whittington, G. (1971). Observations on some valley forms and deposits in the Sani Pass area, Lesotho. South African Geographical Journal, 53, 9699.CrossRefGoogle Scholar
Master, S. (2012). Hertzian fractures in the sub-Dwyka Nooitgedacht striated pavement, and implications for the former thickness of Karoo strata near Kimberley, South Africa. South African Journal of Geology, 115, 561576.CrossRefGoogle Scholar
Mills, S. and Grab, S. W. (2005). Debris ridges along the southern Drakensberg escarpment as evidence for Quaternary glaciation in southern Africa. Quaternary International, 129, 6173.CrossRefGoogle Scholar
Mills, S. C., Grab, S. W. and Carr, S. J. (2009a). Recognition and palaeoclimatic implications of late Quaternary niche glaciation in eastern Lesotho. Journal of Quaternary Science, 24, 647663.CrossRefGoogle Scholar
Mills, S. C., Grab, S. W. and Carr, S. J. (2009b). Late Quaternary moraines along the Sekhokong range, eastern Lesotho: Contrasting the geomorphic history of north- and south-facing slopes. Geografiska Annaler, 91A, 121140.CrossRefGoogle Scholar
Mills, S. C., Grab, S. W., Rea, B. R., Carr, S. C. and Farrow, A. (2012). Shifting westerlies and precipitation patterns during the Late Pleistocene in southern Africa determined using glacier reconstruction and mass balance modelling. Quaternary Science Reviews, 55, 145159.CrossRefGoogle Scholar
Osmaston, H. A. and Harrison, S. P. (2005). The late Quaternary glaciations of Africa: A regional synthesis. Quaternary International, 138–139, 3254.CrossRefGoogle Scholar
Partridge, T. C., Scott, L. and Hamilton, J. E. (1999). Synthetic reconstructions of southern African environments during the Last Glacial Maximum (21–18 kyr) and the Holocene Altithermal (8–6 kyr). Quaternary International, 57 /58, 207214.CrossRefGoogle Scholar
Sänger, H. (1987). Pleistocene glaciations in the Western Cape Folded Belt of South Africa. In Current Research in African Earth Sciences, ed. Matheis, G. and Schandelmeier, H.. Rotterdam: Balkema, pp. 447449.Google Scholar
Sänger, H. (1988). Vergletscherung der Kap-Ketten im Pleistozän. Berliner Geographische Studien, 26, 182.Google Scholar
Scott, L., Neumann, F. H., Brook, G. A., Bousman, C. B., Norström, E. and Metwally, A. A. (2012). Terrestrial fossil-pollen evidence of climate change during the last 26 thousand years in Southern Africa. Quaternary Science Reviews, 32, 100118.CrossRefGoogle Scholar
Sladen, J. A. and Wrigley, W. (1983). Geotechnical properties of lodgement till: A review. In Glacial Geology; An Introduction for Engineers and Earth Scientists, ed. Eyles, N.. London: Permagon, pp. 184212.Google Scholar
Sparrow, G. W. A. (1964). Pleistocene periglacial landforms in the southern hemisphere. South African Journal of Science, 60, 143147.Google Scholar
Sparrow, G. W. A. (1967). Southern African cirques and aretes. Journal of Geography, 11, 911.Google Scholar
Sparrow, G. W. A. (1974). Non-glacial cirque formation in southern Africa. Boreas, 3, 6168.CrossRefGoogle Scholar
Sumner, P. D. (2004). Relict sorted patterned ground in Lesotho. Permafrost and Periglacial Processes, 15, 8993.CrossRefGoogle Scholar
Tyson, P. D. and Partridge, T. C. (2000). Evolution of Cenozoic Climates. In The Cenozoic of Southern Africa, ed. Partridge, T. C. and Maud, R. R.. Oxford: Oxford University Press, pp. 371387.Google Scholar
Visser, J. N. J. and Hall, K. J. (1985). Boulder beds in the glaciogenic Permo Carboniferous Dwyka Formation in South Africa. Sedimentology, 32, 281294.CrossRefGoogle Scholar
von Brunn, V. (1996). The Dwyka Group in the northern part of Kwazulu/Natal, South Africa: Sedimentation during late Palaeozoic deglaciation. Palaeogeography, Palaeoclimatology, Palaeoecology, 125, 141163.CrossRefGoogle Scholar

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