The recognition that Earth history has been punctuated by supercontinents, the assembly
and breakup of which have profoundly influenced the evolution of the geosphere …

Seismic tomography reveals 2 extensive regions in the lowermost mantle, beneath Africa
and the Pacific, that exhibit lower-than-average seismic wave speeds. These regions have …

We develop a global‐scale P wave velocity model (LLNL‐G3Dv3) designed to accurately
predict seismic travel times at regional and teleseismic distances simultaneously. The model …

Abstract The Earth's Moon is thought to have formed by an impact between the Earth and an
impactor around 4.5 billion years ago. This impact could have been so energetic that it could …

Two large low-shear-velocity provinces (LLSVPs) in the deep mantle beneath Africa and the
Pacific are generally interpreted as hot but chemically dense 'piles', which have remained …

Improved constraints on lower-mantle composition are fundamental to understand the
accretion, differentiation, and thermochemical evolution of our planet. Cosmochemical …

Numerical convection models of the thermochemical evolution of Venus are compared to
present‐day topography and geoid and recent resurfacing history. The models include …

Based on SEMUCB‐WM1 tomographic model, validated by other recent models, and fluid
mechanics constraints, we show that the large low shear velocity provinces (LLSVPs) …

Sublithospheric diamonds and the inclusions they may carry crystallize in the
asthenosphere, transition zone, or uppermost lower mantle (from 300 to∼ 800 km), and are …

The lowermost (> 2400km) Earth's mantle mapped by seismic tomography is strongly
heterogeneous, the most striking feature being two large regions where shear-wave velocity …