The continental crust is primarily felsic, meaning it is rich in silica and aluminum, with common rock types including granite and rhyolite. In contrast, the oceanic crust is more basaltic, composed mainly of basalt, which has a higher iron and magnesium content. The composition of the continental crust contributes to its lower density compared to the oceanic crust. Overall, the continental crust's felsic nature plays a significant role in its geological features and processes.
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