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 ...

This schematic illustrates the most geophysically plausible explanation for the abundance of HSE metals present in the Earth’s mantle. During the long period of bombardment, impactors would strike the ...

A recent study published in Geophysical Research Letters has uncovered new insights into one of Earth’s most puzzling anomalies—a massive gravity hole beneath the Indian Ocean. The phenomenon, known ...