Geological and geomorphological controls on landslides : North Tanganyika-Kivu Rift Region, Tropical Africa
- Author
- Toussaint MUGARUKA BIBENTYO (UGent) , Stijn Dewaele (UGent) , Charles Nzolang and Olivier Dewitte
- Organization
- Abstract
- Landslides are geohydrological hazards that shape landscapes and may cause disasters. Despite their impact, the geological and geomorphological factors controlling their occurrence are not always well understood. This is especially so in mountainous areas in tropical regions where environmental conditions, such as bedrock type and soil weathering, may be specific. This research investigates these controls on landslides in the North Tanganyika-Kivu Rift region, tropical Africa. Our local-scale studies in the Ruzizi Gorge show how interactions between the rapid incision of the gorge, the bedrock type and associated weathering, as well as the geomorphic legacy of past landslides, have created a complex system in which landslide activity is episodic and scale-dependent, improving our understanding of the drivers of landslides in tropical river gorges. Our regional study demonstrates the importance of considering lithological complexity, the chronology of landslide occurrence and the long-term legacy of landscape evolution in understanding landslide characteristics in rift-prone tropical mountainous regions.
- Keywords
- landslide, river incision, bedrock, weathering, landscape morphology, tropical
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01JT2T5JQR5G84CGDSJJKNX4RM
- MLA
- MUGARUKA BIBENTYO, Toussaint, et al. “Geological and Geomorphological Controls on Landslides : North Tanganyika-Kivu Rift Region, Tropical Africa.” AFRIKA FOCUS, vol. 38, 2025, pp. 194–207, doi:10.1163/2031356X-20250112.
- APA
- MUGARUKA BIBENTYO, T., Dewaele, S., Nzolang, C., & Dewitte, O. (2025). Geological and geomorphological controls on landslides : North Tanganyika-Kivu Rift Region, Tropical Africa. AFRIKA FOCUS, 38, 194–207. https://doi.org/10.1163/2031356X-20250112
- Chicago author-date
- MUGARUKA BIBENTYO, Toussaint, Stijn Dewaele, Charles Nzolang, and Olivier Dewitte. 2025. “Geological and Geomorphological Controls on Landslides : North Tanganyika-Kivu Rift Region, Tropical Africa.” AFRIKA FOCUS 38: 194–207. https://doi.org/10.1163/2031356X-20250112.
- Chicago author-date (all authors)
- MUGARUKA BIBENTYO, Toussaint, Stijn Dewaele, Charles Nzolang, and Olivier Dewitte. 2025. “Geological and Geomorphological Controls on Landslides : North Tanganyika-Kivu Rift Region, Tropical Africa.” AFRIKA FOCUS 38: 194–207. doi:10.1163/2031356X-20250112.
- Vancouver
- 1.MUGARUKA BIBENTYO T, Dewaele S, Nzolang C, Dewitte O. Geological and geomorphological controls on landslides : North Tanganyika-Kivu Rift Region, Tropical Africa. AFRIKA FOCUS. 2025;38:194–207.
- IEEE
- [1]T. MUGARUKA BIBENTYO, S. Dewaele, C. Nzolang, and O. Dewitte, “Geological and geomorphological controls on landslides : North Tanganyika-Kivu Rift Region, Tropical Africa,” AFRIKA FOCUS, vol. 38, pp. 194–207, 2025.
@article{01JT2T5JQR5G84CGDSJJKNX4RM,
abstract = {{Landslides are geohydrological hazards that shape landscapes and may cause disasters. Despite their impact, the geological and geomorphological factors controlling their occurrence are not always well understood. This is especially so in mountainous areas in tropical regions where environmental conditions, such as bedrock type and soil weathering, may be specific. This research investigates these controls on landslides in the North Tanganyika-Kivu Rift region, tropical Africa.
Our local-scale studies in the Ruzizi Gorge show how interactions between the rapid incision of the gorge, the bedrock type and associated weathering, as well as the geomorphic legacy of past landslides, have created a complex system in which landslide activity is episodic and scale-dependent, improving our understanding of the drivers of landslides in tropical river gorges. Our regional study demonstrates the importance of considering lithological complexity, the chronology of landslide occurrence and the long-term legacy of landscape evolution in understanding landslide characteristics in rift-prone tropical mountainous regions.}},
author = {{MUGARUKA BIBENTYO, Toussaint and Dewaele, Stijn and Nzolang, Charles and Dewitte, Olivier}},
issn = {{0772-084X}},
journal = {{AFRIKA FOCUS}},
keywords = {{landslide,river incision,bedrock,weathering,landscape morphology,tropical}},
language = {{eng}},
pages = {{194--207}},
title = {{Geological and geomorphological controls on landslides : North Tanganyika-Kivu Rift Region, Tropical Africa}},
url = {{http://doi.org/10.1163/2031356X-20250112}},
volume = {{38}},
year = {{2025}},
}
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