Scottish Alliance for Geoscience, Environment and Society

Dr Tobias Keller

Research interests:

– Modelling magmatic differentiation of early planetesimals and consequences for core formation and volatile retention during planetary accretion.
– Modelling magma processing and igneous rock formation linked to intra-plate and plate-boundary tectonics.
– Modelling magma outgassing dynamics in volcanic plumbing systems
– Modelling magmatic ore formation in subvolcanic systems

Career history:

2009-2013 Ph.D., ETH Zurich, modelling magma transport in lithosphere and crust
2013-2016 Postdoc, University of Oxford, modelling carbon transport in mid-ocean ridge magmatism
2016-2019 Postdoc, Stanford University, modelling volcano dynamics and magmatic ore formation

Active research projects:

I am a Computational Geoscientist interested in the physical and chemical processes governing volcanoes and their deep magmatic roots. My interests span igneous processes during planetary formation, regional magmatism in intra-plate and plate boundary tectonic settings, and volcanic, hydrothermal and ore formation processes in the shallow crust. My main tools of research are custom-built computational models of reactive multi-phase transport that investigate processes underlying observational and experimental evidence from geophysics, geochemistry, petrology, and volcanology.

Recent publications:

2019 – T Keller & J Suckale: A continuum model of multiphase reactive transport in igneous systems. Geophys J Inter, 219, 185–222, doi: 10.1093/gji/ggz287.
2019 – T Lichtenberg, T Keller, R F Katz, G J Golabek, & T V Gerya: Magma ascent in planetesimals controlled by grain size. Earth Planet Sci Letts, 507, 154–165. doi: 10.1016/j.epsl.2018.11.034.
2018 – J Suckale, Z Qin, D Picchi, T Keller, & I Battiato: Bistability of buoyancy-driven exchange flows in vertical tubes. J Fluid Mech, 850, 525–550. doi: 10.1017/jfm.2018.382.
2017 – T Keller, R F Katz, & M M Hirschmann: Volatiles beneath mid-ocean ridges: Deep melting, channelised transport, focusing, and metasomatism. Earth Planet Sci Lett, 464, 55–68. doi: 10.1016/j.epsl.2017.02.006.

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