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ERC HotCores - 2022-2027 Min-Dixi ANR - 2023-2027 TIMEleSS ANR - 2018-2022

Earth and Planetary Materials in Lille

Main page Present members Former members Publications High Pressure Lab Work at Large Scale Facilities

Software and tutorials

Powder Diffraction

Microstructural studies using x-ray diffraction Data processing with MAUD Multifit/Polydefix maudESGEdit

Multigrain X-ray Diffraction

TIMEleSS Multigrain Wiki TIMEleSS tools @ github

Java applets

High pressure diffraction patterns Sea level and topography Structures of minerals Phase diagram of olivine

Teaching

Polycrystal plasticity

Topics

Science topics

Scientific illustrations Mystère des profondeurs -- An article for The Conversation The diamonds at LSPES Raman spectrum of iron Deformations in the diamond anvil cell Symbols and space group numbers Elasticity X-ray diffraction

Conference presentations

2024 ICOTOM - Multigrain X-ray crystallography and phase transformation and deformation microstructures in Earth's mantle minerals

Other topics

Tips LaTeX Natbib reference sheet VPN connection to Lille 1 under Linux

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Mineral structures and the composition of the deep Earth

Upper mantle:

• from the Moho to 400 km:
  • 54% of olivine, alpha phase
  • 28% of pyroxenes: orthopyroxene (Mg,Fe)SiO₃ et clinopyroxene (Ca,Mg,Fe)₂Si₂O₆
  • 18% of garnets: (Mg,Fe,Ca)₃Al₂Si₃O₁₂
• from 400 km to 670 km:
  • 52% of wadsleyite (beta phase), and then ringwoodite (gamma phase)
  • 48% of garnets

Lower mantle:

• 5% of perovskite CaSiO₃
• 75% of perovskite (Mg,Fe,Al)SiO₃
• 20% of magnésiowüstite (Mg,Fe)O

Inner core:

• Hcp iron

Miscaneleous:

• graphite
• diamond

The java animations on these pages use the freely available java applet Crystal Atomic Lattice Viewer.