Overall, Professors Sun and Tkalčić determine that mantle convection is the primary cause of Mars's unusual dichotomy, not giant impacts as the alternative hypothesis suggests.

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 ...

Magnetic field, mantle convection and tectonics Date: July 29, 2012 Source: Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences ...

Scientists discover hidden "ghost plume" beneath Oman using earthquake data, revealing Earth's secret heat pathways.

“These findings will contribute to a better understanding of mantle convection and plate tectonics, and, therefore, phenomena we experience at the surface like earthquakes and volcanism,” said ...

Previous tomography-based investigations of mantle convection below Africa 7,8,9,10 are based on long-wavelength global tomography models 11 that resolve structures with scale lengths generally in ...

Convection Way Under Ground. Image by Harroschmeling CC-BY-3. This figure is a snapshot of one time-step in a model of the Earth’s mantle convection. Colors closer to red are hot areas, and colors ...

This suggests that the heat flow from the core into the mantle is also higher than previously thought. Greater heat flow, in turn, increases mantle convection and accelerates the cooling of the Earth.

Yuan and Li’s mantle-convection simulations helped them figure out what contributed to that difference. They altered four parameters (blob volume, density, and viscosity, plus the viscosity of ...

“These findings will contribute to a better understanding of mantle convection and plate tectonics, and, therefore, phenomena we experience at the surface like earthquakes and volcanism,” said ...