Buried more than 3,000 miles beneath our feet, Earth’s solid inner core was once thought to be unchanging—locked in place at ...

It’s not much of a stretch to say that Earth’s inner structure, especially the innermost spherical core, has stupefied ...

Scientists now know how to drill deep enough to tap into an energy supply that would power the world for more than 20 million ...

Surprising differences in the two so-called Large Low-Velocity Provinces may risk instability in Earth's protective magnetic field.

Scientists uncover surprising evidence that the Kerguelen hotspot, responsible for the 5,000-kilometer-long Ninetyeast Ridge, ...

The Earth is made of different layers: the core, mantle and crust. Plate tectonic theory shows that the crust of the Earth is split into plates (pieces of the Earth’s crust). The movement of ...

Others have suggested that the blobs are huge chunks of oceanic crust that were pushed into the mantle when one tectonic plate slipped under another — a process known as subduction. The crust ...

It also flexes in response to ice. The long glacial period that preceded our current interglacial saw sheets of ice that pressed the crust down into the mantle under their difficult-to-conceive ...

The source for the isotopically-enriched Hawaiian magmas contains peridotites that experienced near-surface melting prior ...