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 …
Seismic images of Earth's interior have revealed two continent-sized anomalies with low seismic velocities, known as the large low-velocity provinces (LLVPs), in the lowermost …
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 …
M Armann, PJ Tackley - Journal of Geophysical Research …, 2012 - Wiley Online Library
Numerical convection models of the thermochemical evolution of Venus are compared to present‐day topography and geoid and recent resurfacing history. The models include …
A Davaille, B Romanowicz - Tectonics, 2020 - Wiley Online Library
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) …
A Stracke, F Genske, J Berndt, JM Koornneef - Nature Geoscience, 2019 - nature.com
Partial melting of Earth's mantle generates oceanic crust and leaves behind a chemically depleted residual mantle. The time-integrated composition of this chemically depleted …
The thermal and chemical evolution of rocky planets is controlled by their surface tectonics and magmatic processes. On Earth, magmatism is dominated by plutonism/intrusion versus …
Aims. We explore volcanic CO 2-outgassing on purely rocky, stagnant-lid exoplanets of different interior structures, compositions, thermal states, and age. We focus on planets in …
The core–mantle boundary (CMB)–the interface between the silicate mantle and liquid iron alloy outer core–is the most important boundary inside our planet, with processes occurring …