Mechanisms of magma emplacement in sedimentary basins: Quantitative laboratory modelling
Magmatic intrusions in sedimentary basins exhibit various shapes ranging from thin horizontal sheets (sills) to thick, massive intrusions (laccoliths).
The main difference leading to such diversity appears to result from distinct deformation modes of the overburden rocks: for sills, the overburden dominantly bends whereas, for laccoliths, the overburden fails along faults. The contrasting differences have tremendous implications to the structuring of sedimentary basins, and in particular to fluid flow. The conditions for overburden failure during an intrusion are currently unknown. In this project, we propose to explore the mechanics of magma emplacement and its structural impact on the host rock through quantitative laboratory experiments.
The experiments can be 2-dimensional or 3-dimensional and will be monitored using a photogrammetry apparatus, which will allow us to determine the damage and fracturing patterns induced by the magma emplacement.
- laboratory modelling
- photogrammetry and Structure-from-Motion
- data analysis
- Python/Matlab programming