Researchers have discovered cratonic thinning occurring beneath North America, driven by the remnants of the Farallon Plate.

New research is reshaping how scientists understand the earliest days of Earth’s formation—suggesting that the deep interior ...

Just when things couldn't get any crazier in the US, scientists have discovered that the underside of the Earth's crust is ...

It is unclear what these structures are. If they were anywhere else, they could be portions of tectonic plates that have sunk ...

The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal ... The next layer is the mantle. Many people think of this as lava, but it's actually ...

The mantle is made up of different layers. The upper mantle is hard but below that is semi-molten rock called magma. Crust The crust is the outer layer of the Earth on which we live. It is the ...

This mantle is constantly in motion due to the heat from the deeper part of the earth. One result is that the heated semi-solid rock (molten rock) can be forced up from the mantle and erupt ...

(b) Compression causes the metals in the molten zone to solidify and sink. (c) Then thermal convection mixes and redistributes the metal-impregnated mantle components over long geologic time frames.