On a time scale of tens to hundreds of millions of years, the geomagnetic field may be influenced by currents in the mantle. The frequent polarity reversals of Earth's magnetic field can also be ...

Convection currents in the mantle move faster than previously predicted Ars Electronica/Flickr Convection currents in the Earth's mantle move faster than previously believed, say researchers. A study ...

The possible causes of convection in the Earth's mantle are examined, and it is concluded that radiogenic heating together with thermal conduction is most likely to provide the driving force for any ...

There's a small problem with Earth's magnetic field: It should not have existed, as Earth's rock record indicates it has, for the past 3.5 billion years. Motions in the Earth's molten iron core ...

The evolution of our Earth is the story of its cooling: 4.5 billion years ago, extreme temperatures prevailed on the surface of the young Earth, and it was covered by a deep ocean of magma. Over ...

A team of Japanese researchers hopes to drill through the Earth's crust and reach the mantle directly. This would be a major achievement; our efforts to reach the mantle to-date have not been ...

Physicists in the US have performed a simple table-top experiment that could provide new insight into why the Earth’s continents drift apart and then move back together over several hundred-million ...

The first comprehensive survey of the Earth's mantle has revealed a bizarre and dynamic realm with ten times as much activity as geologists had predicted. The mantle is a 3,000 km-thick (1,865 miles) ...