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The Ivorian Coastal Zone: Morphology and Sedimentary Processes?Examples from Grand-Lahou and Abidjan

by Jacques Abe, Cent de Recherches Oceanographiques, Abiidjan, Ivory Coast,
Kouadio Affian, Cent de Recherches Oceanographiques, Abiidjan, Ivory Coast,



Document Type: Proceeding Paper

Part of: Coastlines of Western Africa

Abstract:

The Ivorian coastal zone is composed of three main morphological units. The South west coast stretching from Tabou to Sassandra is composed of successions of rocky capes separated by narrow sandy beaches which are generally near river mouths. The rocky coastal zone is narrow with maximum elevation of not more than 30 meters above sea level; while the sandy beaches are very narrow, backed by elevated cliffs backed by elevated cliffs. The eastern coastal zone from Grand-Lahou to the Ghanaian border constituted by the barrier-lagoon system composed of quaternary sands. This is the western extremity of the west African barrier-lagoon system coastal zone is low-lying, lagoon system is backed by Tertiary continental plateaus. Typical areas of coastal erosion are within the Grand-Lahou and Abidjan areas of the barrier-lagoon coastal zone.

Subject Headings: Coastal processes | Beaches | Sediment transport | Sediment | Erosion | Cliffs | Sea level

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