The mantle is about 1,800 miles (2,900 kilometers) thick and appears to be divided into two layers: the upper mantle and the lower mantle. The boundary between the two lies about 465 miles (750 ...

A breakthrough study has provided the most detailed 3D look yet at the inner workings of the Tonga Subduction Zone, where ...

If you were to slice through it, you would see the Earth is divided into distinct layers. On top is the relatively thin crust where we live. Beneath that is the 2,900 km thick mantle layer.

Deep within Earth’s mantle lie two enormous, continent-sized structures known as LLVPs. Scientists once believed these ...

These reactions transform the mineral olivine — predominant in the upper layer of the Earth’s mantle — into serpentine rocks, ...

High-Resolution Anisotropic Tomography Reveals Mantle Flow Complexity and Slab-Plume Interactions, Redefining Subduction Zone ...

"Our new results suggest that for most of Earth's history, convection in the mantle was stratified into two distinct layers, namely upper and lower mantle regions that were isolated from each ...

If you’ve ever looked at Mars through a telescope, you probably noticed its two polar ice caps. The northern one is made largely of water ice—the most obvious sign that Mars was once a wetter, warmer ...

Beneath the continent is the asthenosphere, the ductile upper layer of Earth’s mantle. How mantle waves buoy Earth’s surface to form broad plateaus The researchers also linked their ...

A low-velocity anomaly in the upper mantle beneath the Coral Sea, may be interpreted as a thermomechanical plume which interacts with subducting slabs, affecting offset intraplate volcanism and ...

The ice sheet is bending the rocky crust beneath at a rate of 0.13 millimetres per year. Mars's upper mantle is stiff, with a viscosity 10 to 100 times higher than Earth's. Focus: Planetary research, ...

The melting curves of carbonated basalt at upper mantle and transition zone pressures are from (Kiseeva et al., 2013) (green curve) and (Andrew R Thomson et al., 2016; A.R. Thomson et al., ...