Terracettes and active gelifluction terraces in the Drakensberg of the Province of Eastern Cape, South Africa: a process study

Title: Terracettes and active gelifluction terraces in the Drakensberg of the Province of Eastern Cape, South Africa: a process study
Creator: Kück, K M
Creator: Lewis, Colin A
Date Issued: 2002
Date: 2002
Type: Article
Identifier: vital:6688
Identifier: http://hdl.handle.net/10962/d1006706
Description: Terracettes and turf-banked terraces exist at Tiffindell Ski Resort in the Drakensberg of the Province of the Eastern Cape at altitudes between 2750 m and 2880 m on slopes of between 15°and 26°. Ice lenses and interstitial ice exist within turf-banked terraces in winter. During post-winter thaws, soil moisture reaches saturation in at least the upper part of the regolith in which turf-banked terraces occur. These terraces move downslope under the influence of gelifluction (which is essentially a combination of frost creep and solifluction). Terracettes appear to move as a result of frost creep, processes associated with needle ice, and slope wash. Both turf-banked terraces and terracettes are part of the periglacial environment and are active under present climatic conditions at Tiffindell.
Format: 23 pages
Format: pdf
Language: English
Relation: Kück, K.M. and Lewis, C.A. (2002) Terracettes and active gelifluction terraces in the Drakensberg of the Province of Eastern Cape, South Africa: a process study. South African Geographical Journal, 84 (2). pp. 214-225.

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RU Department of Geography

Lewis, Colin A (Prof)

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