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Diverses formes karstiques ont ete mises en evidence au sein des micaschistes et des gneiss non carbonates de la nappe de Yaounde. Leur formation est fortement controlee par les caracteres structuraux des roches. Les puits et les conduits de paroi resultent d'une karstification actuelle, initiee par la dissolution des plagioclases sous l'effet des eaux pluviales acides. Les alveoles de paroi et les...
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