Bubble- and crystal-scale modeling
To understand the development of magmatic textures including bubble and crystal size, shape, and fabric, I perform modeling that addresses the physics of bubble- and crystal-scale processes. These micro-scale processes feed back into suspension-scale processes such as rheology, volume change, and phase segregation.
Multi-species diffusion modeling
I currently have several projects that use existing numerical models for bubble growth (Coumans et al. 2020) which I have adapted to include carbon dioxide and water speciation between molecular water and hydroxyl groups dissolved in the melt. This work deomnstrates the importance of considering the interdependence of multi-component solubility and the kinetics of bubble growth and resorption which differ between species. We applied this model to a mutli-component inversion of the IDDP-1 borehole glasses from Krafla volcano, Iceland, which reveal the timescales over which magma responded upon intersection during geothermal drilling.
Crystal reorientation
Crystals also reoreint and deform in response to shear. In collaboration with P. Wallace, we investigate how pyroxene crystals in amphibole breakdown rims record the deformation history of crystals during magmatic processes.
