Respuesta :
Granite and Basalt, Increasing amounts of olivine and pyroxene, Minerals stable only at very high pressures; Fe-Mg silicates and oxides, Molten iron with nickel and some other elements and crystalline iron and iron-nickel alloy.
The crust, mantle, outer core, and inner core are the four major layers that constitute the earth's interior. The outer core is a viscous liquid, the inner core is a dense solid, the mantle is a viscous molten rock, and the crust is a silicate solid.
Lighter sodium potassium aluminum silicate rocks, like granite, make up the continental crust. The thick iron magnesium silicate igneous rocks that make up the oceanic crust, however, include basalt.
Silicate rocks that make up the mantle are more abundant in iron and magnesium than the crust above them. Iron combined with nickel (nife) and minute quantities of lighter metals make up the outer core. Most experts agree that the inner core consists mostly of iron (80%) and a little amount of nickel (nife).
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