Core, mantle, and crust are divisions based on composition. The crust makes up less than 1 percent of Earth by mass, consisting of oceanic crust and continental crust is often more felsic rock. ... The lithosphere is composed of both the crust and the portion of the upper mantle that behaves as a brittle, rigid solid.
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Core, mantle, and crust are divisions based on composition. The crust makes up less than 1 percent of Earth by mass, consisting of oceanic crust and continental crust is often more felsic rock. ... The lithosphere is composed of both the crust and the portion of the upper mantle that behaves as a brittle, rigid solid.
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