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

Pressures in the lower mantle start at 237,000 times atmospheric pressure (24 gigapascals) and reach 1.3 million times atmospheric pressure (136 gigapascals) at the core-mantle boundary.

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

A phase change in post-perovskite materials at the so-called D” discontinuity is also evidence for long-predicted slow, convective flows in the mantle itself ...

The deepest earthquake ever, which occurred off Japan in 2015, reached into Earth's lower mantle. (Image credit: Shutterstock) This makes the quake something of a head-scratcher.

According to current scientific theories, the anomalous material in the lower mantle, about 600 miles (1,000km) beneath the water, 'should not be found' there.

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.

Geophysicists have long theorized that the mantle transition zone, wedged between the upper and lower mantle at depths of 410 to 660 kilometers, could be a secret vault for Earth’s lost water.

Most of Earth's lower mantle is made of a magnesium silicate mineral called perovskite. In 2004, earth scientists discovered that under the conditions of the lower mantle, ...

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. CNN values your feedback 1.

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 ...