Numerical modeling of geologic processes

As part of my volcano research I have used numerical tools of solid and fluid mechanics that have helped me to model geodetic observations in active volcanoes. These tools are required to udnerstand to complexity of geological processess. I have worked with a variety of models that include elastic, viscoelastic, magma physics in a variety of software including Pylith, COMSOL Multiphyics, DEFVOLC and tools that I have developed in Matlab. I have also developed new analytic models of magma transfer.

Finite element mesh used in a simulation of coupled magma ascent due to pressure inlet Pin and reservoir overpressure Pres. The pressure gradient drives magma flow Q and results in a volume variation ΔV in the reservoir and time-dependent ground deformation.

Relevant publications

Trapdoor fault activation: a step towards caldera collapse at Sierra Negra, Galápagos, Ecuador.
Shreve, T., Delgado, F.. Journal of Geophysical Research, 2023, 128, e2023JB026437, doi:10.1029/2023JB026437.

Dynamics of episodic magma injection and migration at Yellowstone caldera: revisiting the 2004-2009 episode of caldera uplift with InSAR and GPS.
Delgado, F., Grandin, R. Journal of Geophysical Research: Solid Earth, 126, e2021JB022341. 2021, doi:10.1029/2021JB022341

Physicochemical models of effusive rhyolitic eruptions constrained with InSAR and DEM data: a case study of the 2011-2012 Cordon Caulle eruption
Delgado, F., Kubanek, J., Anderson, K., Lundgren, P., Pritchard, M. Earth and Planetary Science Letters. 2019, 524, doi:10.1016/j.epsl.2019.115736

Renewed post-eruptive uplift following the 2011-2012 rhyolitic eruption of Cordón Caulle (Southern Andes, Chile): evidence for transient episodes of magma reservoir recharge during 2012-2018
Delgado, F., Pritchard, M., Samsonov, S., Córdova, L.. Journal of Geophysical Research. 2018. doi:10.1029/2018JB016240