SM
Member Since 1998
Sebastien Merkel
Professor, Université de Lille
AGU Research
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The Thermal Conductivity of Bridgmanite at Lower Mantle Conditions Using a Multi‐Technique Approach
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
11 june 2024
Eric Edmund, Karen Appel, James Badro, Carsten Bäh...

The thermal conductivity of bridgmanite, the primary constituent of the Earth's lower mantle, has been investigated using diamond anvil cells at pr...

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Depth Dependent Deformation and Anisotropy of Pyrolite in the Earth's Lower Mantle
GEOPHYSICAL RESEARCH LETTERS
08 june 2024
Jeffrey Gay, Julien Chantel, Matthias Krug, Estell...

Seismic anisotropy is a powerful tool to map deformation processes in the deep Earth. Below 660 km, however, observations are scarce and confl...

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Stress Balance in Synthetic Serpentinized Peridotites Deformed at Subduction Zone Pressures
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
20 march 2024
Nadege Hilairet, Jeremy Guignard, Thomas P. Ferran...

Weak serpentine minerals affect the mechanical behavior of serpentinized peridotites at depth, and may play a significant role in deformation local...

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Fabric, connectivity and topology in olivine+serpentine aggregates deformed in torsion, from in-situ X-ray tomography
PHYSICAL PROPERTIES OF EARTH MATERIALS (PPEM): DEFORMATION ACROSS SCALES II ORAL
mineral and rock physics | 11 december 2023
Nadege Hilairet, Tommaso Mandolini, Julien Chantel...
Serpentines result from the alteration of peridotitic mantle, coexist with olivine in serpentinized peridotite, and are among the weaker minerals in t...
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Deformation Mechanisms, Microstructures, and Seismic Anisotropy of Wadsleyite in the Earth's Transition Zone
GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS
15 november 2023
Estelle Ledoux, MORVARID SAKI, Jeffrey Gay, Matthi...

Wadsleyite is the dominant mineral of the upper portion of the Earth's mantle transition zone (MTZ). As such, understanding plastic deformation of ...

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Multigrain X-ray Diffraction for the Study of Deformation and Phase Transformation Microstructures at Deep Mantle Pressures and Temperatures
ADVANCED EXPERIMENTAL, COMPUTATIONAL AND ANALYTICAL APPROACHES IN EXPLORING DEEP PLANETARY INTERIORS II POSTER
mineral and rock physics | 15 december 2022
Sebastien Merkel, Matthias Krug, Estelle Ledoux, J...
Understanding how microstructures develop in Earths materials is critical to constrain mantle processes from geophysical observations, such as seismic...
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Microstructures and Shear Wave Anisotropy in Stishovite: Implications for Mid-Mantle Seismic Heterogeneities
HETEROGENEITY IN THE EARTH'S MANTLE: PERSPECTIVES FROM IMAGING, MODELING, GEOCHEMISTRY, AND EXPERIMENTS III ORAL
study of earth's deep interior | 13 december 2022
Carmen Sanchez-Valle, Matthias Krug, Melissa Achor...
Stishovite is a major component of subducted MOR basalt and a plausible candidate to explain seismic anomalies at mid-mantle depth (~ 800 to 1850 km d...
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Multigrain X-ray Diffraction, Data Processing Techniques, and Microstructures in Pyrolite at Lower Mantle Conditions
ADVANCED EXPERIMENTAL, COMPUTATIONAL AND ANALYTICAL APPROACHES IN EXPLORING DEEP PLANETARY INTERIORS I ONLINE POSTER DISCUSSION
mineral and rock physics | 13 december 2022
Jeffrey Gay, Sebastien Merkel, Estelle Ledoux, Mat...
Microstructures induced by phase transformations and deformation within pyrolitic materials have been linked to observable seismic reflections within ...
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