I'm interested in many aspects of high-temperature mantle geochemistry. My PhD work focused on heavy stable isotope tracers of mantle heterogeneity, trying to develop a toolkit to identify recycled crust in the mantle source of erupted basalts using phase equilibrium and isotope fractionation modelling. I am now applying my geochemical background to the study of REE in alkaline-silicate rocks, combining petrology, thermodynamics and geochemical modelling to understand the processes that control the REE budgets in these systems.