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非洲大陆从构造上看大部为地台区,北界以地中海为界,南界以开普褶皱带为界。地台的范围以其周边的褶皱带来控制。地台内部又分出许多狭长形的地台内部的坳陷,在这些坳陷边界又出现大的断裂带。非洲地台的西北、西南和东部一直继续延伸到陆棚区,与大陆坡海洋带的深水盆地分开。非洲地台可分为基底和盖层:基底是变质的和褶皱的下和中前寒武系物质组合。盖
Most of the continent is tectonic area, with the northern boundary being the Mediterranean Sea and the southern boundary being the Cape Fold Zone. The extent of the platform is controlled by the folds around it. The interior of the platform is also divided into many long and narrow depressions within the platform, in the depression and the emergence of a large fault zone. The northwest, southwestern and eastern parts of the African platform have continued to extend to the shelf area, separate from the deepwater basin on the continental slope ocean belt. The African platform can be divided into basement and caprock: the basement is a metamorphic and foldable Lower and Middle Precambrian material assemblage. cover