The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball ...
The Earth is made up of different layers: Therefore, instead of tectonic plates moving because of the convection currents, evidence suggests it is the plates that drive the convection. Slab pull ...
Deep within Earth, there lies a mysterious layer called the D" layer ... According to the new model, minerals in D" would be dominated by a new assemblage: the iron-poor silicate, iron-rich ...
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