Scientists presume that the reason for this is a concurrent reorientation of the whole mantle and crust with a shift in the geographic and magnetic poles of about 30°.

Possible links between long-term geomagnetic variations and whole-mantle convection processes. Nature Geoscience , 2012; DOI: 10.1038/NGEO1521 Cite This Page : ...

Gigantic hidden fortresses discovered 1,800 miles underground in Earth's mantle, rewrite how the planet's interior works.

Geologists recently unveiled groundbreaking seismic evidence of massive, ancient “fortresses” located nearly 1,800 miles below the Earth’s surface, in the mantle. These colossal structures are not ...

Based on a synthesis of data on global oceanic magmatism, Cornelia Class and Steven L. Goldstein show that the evidence actually favors whole-mantle convection, with the deepest parts of the Earth ...

What Goes Down, Must Come Up: Earth's Leaky Mantle Date: May 28, 2009 Source: Rice University Summary: A conundrum has long vexed geoscientists: How to reconcile convection of the Earth's mantle ...

Throughout Earth’s history, the continents have been constantly on the move, converging and diverging in cycles that have shaped the planet’s surface for billions of years. This process, known as ...

The deep, churning convection of the mantle drove the rest. ... "And the whole story behind the evolution of the system is the feedback between the two." Crust plus mantle.

The transition zone was previously thought to be a layer that obstructs whole-mantle convection between the core and the surface of the planet. The seismometers were used to record the timing of ...

Although solid, the rocks of the Earth's mantle deform very slowly. Professor Patrick Cordier's team at the Materials and Transformation Unit (Université Lille, France) has developed a model that ...