inscription
Portail d'information géographique

Résultats de la recherche (12 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • The tectonics, volcanics and sediments of the Nyanza Rift Valley, Kenya
  • Structural geology, tectonics and the control of drainage in the Nile basin in The Sahara and the Nile. Quaternary environments and prehistoric occupation in northern Africa.
  • Main factors which influenced topography shaping in Angola are geological structures and tectonic movements. The Great Escarpment of South Africa (at least within Angola) is a tectonic feature belonging to the transitional zone between the African
  • Landform evolution in the context of climatic change and neo-tectonism in the Middle Kalahari of north-central Botswana
  • Massing and correlation of erosion surfaces, variously affected by volcanic ash, tectonism and lava flows. A case study in S.W. Kenya
  • The littoral zone is one of the most complex geomorphic systems subject to many geomorphological factors, including waves, sediment supply, climate sea levels and tectonics.
  • Late Cenozoic eustatic and tectonic changes around the island of St Helena and their relationship to the physical history of the coast of West Africa
  • The Zungeru Mylonites, Nigeria: recognition of a major tectonic unit
  • and debris flow deposits. The field data are interpreted and related to the geomorphic time curves suggested by Wallace, by Bucknam and Anderson and by Nash and the seismic hazard implications are discussed. The Gulf of Elat has been tectonically highly
  • transgressions are so far evident in the late Quaternary depositional record of the lake, one dated to about 11,000-12,000 BP, the other perhaps 10,000 years older. Tectonic and volcanic factors have undoubtedly modulated the response of Lake Besaka to climatic
  • , possibly related to early Quaternary climatic, tectonic or eustatic changes, has had significant influence on the westward-flowing drainage systems in South West Africa.