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Examples of landslides associated with the Natal Group and pietermaritzburg formation in the greater Durban area of Natal, South Africa
Abstract If the incidence of landslides in the greater Durban area is related to geological formation, then most landslides have been associated with the shales of the Pietermaritzburg Formation. However, in the last eight years, most landslides have been associated with the Natal Group Sandstone and occurred during the very heavy rains of September, 1987, and March, 1988. In fact, prior to 1987 the Natal Group Sandstone was considered relatively stable. On the other hand, many areas in the greater Durban area underlain by shale have long been regarded as unsuitable for development as they were considered potentially unstable. Two types of instability occur on these formations, that is, sliding blocks of rock along bedding planes, and sliding of the weathered and colluvial soil material on top of bedrock. Illustrations of both types of slides on both formations are presented.
Examples of landslides associated with the Natal Group and pietermaritzburg formation in the greater Durban area of Natal, South Africa
Abstract If the incidence of landslides in the greater Durban area is related to geological formation, then most landslides have been associated with the shales of the Pietermaritzburg Formation. However, in the last eight years, most landslides have been associated with the Natal Group Sandstone and occurred during the very heavy rains of September, 1987, and March, 1988. In fact, prior to 1987 the Natal Group Sandstone was considered relatively stable. On the other hand, many areas in the greater Durban area underlain by shale have long been regarded as unsuitable for development as they were considered potentially unstable. Two types of instability occur on these formations, that is, sliding blocks of rock along bedding planes, and sliding of the weathered and colluvial soil material on top of bedrock. Illustrations of both types of slides on both formations are presented.
Examples of landslides associated with the Natal Group and pietermaritzburg formation in the greater Durban area of Natal, South Africa
Bell, F. G. (author) / Maud, R. R. (author)
1996
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
| British Library Online Contents | 1996
| British Library Conference Proceedings | 1997
Durability of shales of the Pietermaritzburg Formation, greater Durban area, South Africa
| British Library Conference Proceedings | 1998