MADISON, “MultiphAse rocks Deformation In SubductiOn zoNes” is a research project funded by the Agence Nationale de la Recherche (2018 – 2023). The funding was 248 000 € for an approximate final cost of 320 000 €. The experiments were partly financed by SOLEIL and ESRF synchrotrons through beamtime allocation.
The follow-up is supported by a phd grant from Univ. Lille (2022-2025) and CNRS -Terre et Univers, through the TelluS-SYSTER program.
The project focused on fundamental research and was coordinated by Nadège Hilairet (Université de Lille). Researchers from the laboratories IMPMC and ISTeP, Paris, were associated.
MADISON was motivated by our lack of knowledge on the mechanical behavior of key rocks located in depths in regions where tectonic plate meet : the subduction zones. Their mechanical strength plays a major role on the mass transfers in depths, and on their shallow expressions seismicity and volcanism.
The physical properties of these rocks, more specifically high pressure strength and deformation mechanisms, have been studied experimentally. The initial aim was to integrate these experimental results with numerical models and natural samples observations.