Concept
Manteau primitif
Publications associées (21)
High Sodium Solubility in Magnesiowüstite in Iron-Rich Deep Lower Mantle
Marco Cantoni, James Badro, Susannah McGregor Dorfman, Farhang Nabiei
(Mg,Fe)O ferropericlase-magnesiow & uuml;stite has been proposed to host the majority of Earth's sodium, but the mechanism and capacity for incorporating the alkali cation remain unclear. In this work, experiments in the laser-heated diamond anvil cell and ...
Amer Geophysical Union2024New tools for phase segmentation and denoising of analytical STEM data for enhanced chemical sensitivity, applied to Earth mantle research
This thesis is dedicated to developing innovative methodologies that improve elemental quantification in scanning transmission electron microscopy (STEM) using energy-dispersive X-ray spectroscopy (EDXS). The primary motivation stems from a geochemistry pr ...
EPFL2023Earthquake energy budget
Earthquakes occur on planar faults that often mark the boundaries between tectonic plates that collide or slide against each other. During an earthquake, sudden slip on the fault releases elastic energy stored in the earth's crust or upper mantle, resultin ...
2020Blocked radiative heat transport in the hot pyrolitic lower mantle
James Badro, Farhang Nabiei, Hélène Marie Piet
The heat flux across the core-mantle boundary (Q(CMB)) is the key parameter to understand the Earth's thermal history and evolution. Mineralogical constraints of the Q(CMB) require deciphering contributions of the lattice and radiative components to the th ...
ELSEVIER2020From 2D to 3D Characterization of Materials Subjected to Extreme Pressure and Temperature Conditions
Planetesimal were the first planetary objects to form in the solar system, which later grew to make the proto-planets. Most of these bodies were differentiated as a result of internal heating. Several differentiated bodies have, then, been accreted followi ...
EPFL2017Primordial metallic melt in the deep mantle
Seismic tomography models reveal two large low shear velocity provinces (LLSVPs) that identify large-scale variations in temperature and composition in the deep mantle. Other characteristics include elevated density, elevated bulk sound speed, and sharp bo ...
Amer Geophysical Union2016