Abstract
Microstructural analysis of the coastal high-grade metasediments of the South Western Ivory Coast show at least four folding phases. The oldest phase does not seem to affect the lower Birrimian mesometamorphic series and it is concluded that this phase affected a pre-Eburnean crystalline and granitic basement. The name Liberian has been applied in the Ivory Coast to this basement. The Birrimian mesometamorphic rocks record the three youngest folding phases: two of them may correspond to two major north north east to south south west synmetamorphic phases of the Eburnean orogeny. The last phase is clearly post-Eburnean and may be synchronous with the north west south east trending chevron-folds (with crenulated schistosity) and the main north north east strike slip faults of the West African shield in the Ivory Coast.
Published Version
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