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Created page with "== Introduction == The continental crust is the layer of igneous, sedimentary, and metamorphic rocks which form the continents and the areas of shallow seabed close to their shores, known as continental shelves. This layer is sometimes called sial because its bulk composition is more felsic compared to oceanic crust, called sima which is more mafic. == Composition == The continental crust consists of various layers, with a bulk composition that is..."
