Presentation: Carbon-rich phases at extreme conditions
Eglantine Boulard is a research assistant at the Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC) at Paris. She obtained her PhD in geophysics in 2011 from Institut de Physique du Globe de Paris under the supervision of G. Fiquet and F. Guyot. Prior to moving to IMPMC, she worked as a post-doctoral fellow at the high-pressure beamline PSICHE of Synchrotron Soleil (2015-2017), Institut Neel (2015) and Stanford University (2011-2014).
Eglantine’s main scientific interests include study of carbon-bearing phases stable at the Earth's lower mantle conditions. She pioneered the study of the deep carbon cycle. Notably, she demonstrated experimentally the phase change of carbonates in mantle conditions accompanied by a change of carbon coordination in the carbon-rich phases. She also studied the impact of carbon on liquid water structures in order to better understand the solvation capacities of hydrothermal fluids. In order to achieve these scientific goals, Eglantine had to develop new tools and protocols. Amongst them it is worth to mention high-pressure and high-temperature 3D imaging to study liquids/amorphous in situ and in real time. Such new 3D imaging techniques open the door to the study of phase transition mechanisms at extreme conditions.