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

The study authors noted that, for a mantle mineral, goldschmidtite has a peculiar chemical composition. “Goldschmidtite has high concentrations of niobium, potassium and the rare-earth elements ...

Geologists have long debated whether a stony formation in Canada contains the world’s oldest rocks – new measurements make a ...

The mantle is incredibly difficult to study because it’s so deeply buried beneath the Earth’s crust, or outer skin. Now, scientists have drilled a 1,268m-deep core that reaches down into this ...

Measurements of directional travel speed of seismic waves constrain flow in the upper mantle. Laboratory experiments suggest that high pressure can change the mantle's mineral alignment, leading ...

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.

Still, if the plume and mantle were changing so rapidly, the oldest of the minerals should have been carried off, never to be found. But that wasn’t the case. It had to be slow.

The record-setting Chang’e-4 mission might have spotted minerals that would reveal long-held ... The study authors argue that it is likely these mineral patches represent upper mantle ...