- Title
- Terracettes and active gelifluction terraces in the Drakensberg of the Province of Eastern Cape, South Africa: a process study
- Creator
- Kück, K M, Lewis, Colin A
- 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, 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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