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 highest volcano in the world is Cerro Ojos del Salado. It is a stratovolcano in South America’s Central Volcanic Zone, reaching an impressive 6893 meters above sea level (or at least above ...

The study confirms that the North Atlantic cold patch is due to a weakening ocean current system, not aerosols or wind ...

More information: Lei Gao et al, Local slab penetration into lower mantle controls deep-focus seismicity and Changbaishan volcanism in northeast China, Nature Communications (2025).

The mantle transition zone, located between 255 and 410 miles (410-660 km) deep, acts as a regulator for material movement toward Earth's depths. The presence of basalts in this zone can slow or even ...

One of these slabs currently straddles the boundary between the mantle transition zone and the lower mantle roughly 410 miles (660 km) beneath the Midwest.

Think Earth is just a static rock? Dive deep, and you'll find a dynamic world where metals leak, water seeps, and its insides ...

"If there is a substantial amount of H 2 O in the transition zone, then some melting should take place in areas where there is flow into the lower mantle," seismologist Brandon Schmandt said, "and ...

They found that some 700 kilometers (400 miles) below our feet in the "transition zone" between the lower mantle and the upper mantle was a rock called ringwoodite.

The dispute concerned whether there is water in the transition zone—the portion of the Earth’s mantle 250 to 410 miles underground, between the upper and lower mantle.

Scientists had already suspected that the Earth's transition zone held plenty of water after analyzing a similar diamond back in 2014, but the latest research adds credence to the theory.

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 ...