Colossal volcanic eruptions like the kind that may have obliterated the dinosaurs more than 65 million years ago are caused ...

Breaking research news reveals that the composition of the Earth's lower mantle may be significantly different than previously thought. The lower mantle comprises 55 percent of the planet by ...

They reveal that the chemical composition of the deep mantle has remained almost intact since the Earth's formation 4.5 ...

A ‘ghost plume’ identified deep in the mantle beneath Oman suggests there may be more heat flowing out of Earth’s core than ...

Scientists created a simulation showing that early Earth still retained chemical traces of its igneous youth, 4.5 billion years ago.

Scientists have detected the deepest earthquake ever, a staggering 467 miles (751 kilometers) below the Earth's surface. That depth puts the quake in the lower mantle, where seismologists expected ...

The lower mantle lies below that zone. Most of Earth's lower mantle is made of a magnesium silicate mineral called perovskite.

Ringwoodite is typically found in the transition zone between the upper and lower mantle, between around 255 and 410 miles (410 to 660 km) below Earth's surface and can contain much more water ...

A computer model visualization of material in the lower mantle. This material resembles a sunken plate but cannot come from subducted plates because of the lack of nearby subduction zones.

Research on hidden structures deep within Earth’s mantle challenges theories about our planet’s middle layer and could transform our understanding of plate tectonics.