Geologists use the term crust for the outermost compositional layer
Moreover, the crust of the continents is distinctly different from the crust beneath the ocean basins
Continental crust is much thicker (as much as 75 km), is composed of less-dense “granitic” rock (about 2.7 g/cm3), is strongly deformed, and includes the planet’s oldest rocks (billions of years in age). By contrast, the oceanic crust is only about 8 km thick, is composed of denser volcanic rock called basalt (about 3.0 g/cm3),
Geologists use the term crust for the outermost compositional layer
Moreover, the crust of the continents is distinctly different from the crust beneath the ocean basins
Continental crust is much thicker (as much as 75 km), is composed of less-dense “granitic” rock (about 2.7 g/cm3), is strongly deformed, and includes the planet’s oldest rocks (billions of years in age). By contrast, the oceanic crust is only about 8 km thick, is composed of denser volcanic rock called basalt (about 3.0 g/cm3),
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