My main research interest is to better understand the behaviour, history and evolution of critical natural systems at the local environmental and global Earth scales, including their biological components by modeling their advanced thermodynamics. Determining these thermodynamics necessitates the knowledge of experimental analogs of these systems at the submicron scale through the structure of complex interfaces between different media (e.g. biological and mineral), compositional gradients or deciphering phase assemblages in tiny experimental setups (e.g. micro-reactors). For this I systematically apply visualization of these analog microsystems by electron microscopies and spectroscopic techniques.