Dr Tobias Keller

  • Lecturer (School of Geographical & Earth Sciences)

Research interests

Research Interests

I am a Computational Geoscientist passionate about all matters magma. I am 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 volcano dynamics, hydrothermal circulation, and ore deposition in the shallow crust.

My main tools of research are custom-built computational models of multi-phase reactive transport to test hypotheses regarding the interpretation of observational and experimental evidence from geophysics, geochemistry, petrology, and volcanology.

 

Biography

I studied Earth Sciences (BSc) and Geophysics (MSc) at ETH Zürich, and went on to earn a Ph.D. in Sciences at the same University. My doctoral research on modelling magma transport in the lithosphere and crust formed part of the cross-disciplinary doctoral school 4D Adamello. 

After receiving my doctoral degree in 2013, I joined the FOALAB research group at the University of Oxford, where I worked on modelling the reactive transport of volatiles in mid-ocean ridge magmatism. From 2016 to 2019 I spent a second postdoc working with the SIGMA research group at Stanford University working on a general theory for multi-phase reactive transport in igneous systems. 

 

Current projects

My most recent research projects broadly fall into the following four area: 

  • Magmatic differentiation of planetesimals and consequences for core formation, crust  generation, and volatile retention during planetary accretion;
  • Magma processing and igneous petrogenesis linked to tectonics in plate boundary and intra-plate settings;
  • Dynamics of magma flow and outgassing in subvolcanic reservoirs and plumbing systems;
  • Energy and mineral resource generation by magmatic and hydrothermal processes linked to volcanism.

 


Publications

List by: Type | Date

Jump to: 2019 | 2018 | 2017 | 2016 | 2013 | 2011 | 2009
Number of items: 11.

2019

Keller, T. and Suckale, J. (2019) A continuum model of multi-phase reactive transport in igneous systems. Geophysical Journal International, 219(1), pp. 185-222. (doi: 10.1093/gji/ggz287)

Lichtenberg, T., Keller, T. , Katz, R. F., Golabek, G. J. and Gerya, T. V. (2019) Magma ascent in planetesimals: control by grain size. Earth and Planetary Science Letters, 507, pp. 154-165. (doi: 10.1016/j.epsl.2018.11.034)

2018

Suckale, J., Qin, Z., Picchi, D., Keller, T. and Battiato, I. (2018) Bistability of buoyancy-driven exchange flows in vertical tubes. Journal of Fluid Mechanics, 850, pp. 525-550. (doi: 10.1017/jfm.2018.382)

2017

Turner, A. J., Katz, R. F., Behn, M. D. and Keller, T. (2017) Magmatic focusing to mid-ocean ridges: the role of grain-size variability and non-Newtonian viscosity. Geochemistry, Geophysics, Geosystems, 18(12), pp. 4342-4355. (doi: 10.1002/2017GC007048)

Keller, T. , Katz, R. F. and Hirschmann, M. M. (2017) Volatiles beneath mid-ocean ridges: deep melting, channelised transport, focusing, and metasomatism. Earth and Planetary Science Letters, 464, pp. 55-68. (doi: 10.1016/j.epsl.2017.02.006)

2016

Suckale, J., Keller, T. , Cashman, K.V. and Persson, P.-O. (2016) Flow-to-fracture transition in a volcanic mush plug may govern normal eruptions at Stromboli. Geophysical Research Letters, 43(23), pp. 12071-12081. (doi: 10.1002/2016GL071501)

Rawson, H., Keller, T. , Fontijn, K., Pyle, D. M., Mather, T. A., Smith, V. C. and Naranjo, J. A. (2016) Compositional variability in mafic arc magmas over short spatial and temporal scales: evidence for the signature of mantle reactive melt channels. Earth and Planetary Science Letters, 456, pp. 66-77. (doi: 10.1016/j.epsl.2016.09.056)

Keller, T. and Katz, R. F. (2016) The role of volatiles in reactive melt transport in the asthenosphere. Journal of Petrology, 57(6), pp. 1073-1108. (doi: 10.1093/petrology/egw030)

2013

Keller, T. , May, D. A. and Kaus, B. J.P. (2013) Numerical modelling of magma dynamics coupled to tectonic deformation of lithosphere and crust. Geophysical Journal International, 195(3), pp. 1406-1442. (doi: 10.1093/gji/ggt306)

2011

Golabek, G. J., Keller, T. , Gerya, T. V., Zhu, G., Tackley, P. J. and Connolly, J. A.D. (2011) Origin of the martian dichotomy and Tharsis from a giant impact causing massive magmatism. Icarus, 215(1), pp. 346-357. (doi: 10.1016/j.icarus.2011.06.012)

2009

Keller, T. and Tackley, P. J. (2009) Towards self-consistent modeling of the martian dichotomy: the influence of one-ridge convection on crustal thickness distribution. Icarus, 202(2), pp. 429-443. (doi: 10.1016/j.icarus.2009.03.029)

This list was generated on Thu Apr 9 03:05:16 2020 BST.
Jump to: Articles
Number of items: 11.

Articles

Keller, T. and Suckale, J. (2019) A continuum model of multi-phase reactive transport in igneous systems. Geophysical Journal International, 219(1), pp. 185-222. (doi: 10.1093/gji/ggz287)

Lichtenberg, T., Keller, T. , Katz, R. F., Golabek, G. J. and Gerya, T. V. (2019) Magma ascent in planetesimals: control by grain size. Earth and Planetary Science Letters, 507, pp. 154-165. (doi: 10.1016/j.epsl.2018.11.034)

Suckale, J., Qin, Z., Picchi, D., Keller, T. and Battiato, I. (2018) Bistability of buoyancy-driven exchange flows in vertical tubes. Journal of Fluid Mechanics, 850, pp. 525-550. (doi: 10.1017/jfm.2018.382)

Turner, A. J., Katz, R. F., Behn, M. D. and Keller, T. (2017) Magmatic focusing to mid-ocean ridges: the role of grain-size variability and non-Newtonian viscosity. Geochemistry, Geophysics, Geosystems, 18(12), pp. 4342-4355. (doi: 10.1002/2017GC007048)

Keller, T. , Katz, R. F. and Hirschmann, M. M. (2017) Volatiles beneath mid-ocean ridges: deep melting, channelised transport, focusing, and metasomatism. Earth and Planetary Science Letters, 464, pp. 55-68. (doi: 10.1016/j.epsl.2017.02.006)

Suckale, J., Keller, T. , Cashman, K.V. and Persson, P.-O. (2016) Flow-to-fracture transition in a volcanic mush plug may govern normal eruptions at Stromboli. Geophysical Research Letters, 43(23), pp. 12071-12081. (doi: 10.1002/2016GL071501)

Rawson, H., Keller, T. , Fontijn, K., Pyle, D. M., Mather, T. A., Smith, V. C. and Naranjo, J. A. (2016) Compositional variability in mafic arc magmas over short spatial and temporal scales: evidence for the signature of mantle reactive melt channels. Earth and Planetary Science Letters, 456, pp. 66-77. (doi: 10.1016/j.epsl.2016.09.056)

Keller, T. and Katz, R. F. (2016) The role of volatiles in reactive melt transport in the asthenosphere. Journal of Petrology, 57(6), pp. 1073-1108. (doi: 10.1093/petrology/egw030)

Keller, T. , May, D. A. and Kaus, B. J.P. (2013) Numerical modelling of magma dynamics coupled to tectonic deformation of lithosphere and crust. Geophysical Journal International, 195(3), pp. 1406-1442. (doi: 10.1093/gji/ggt306)

Golabek, G. J., Keller, T. , Gerya, T. V., Zhu, G., Tackley, P. J. and Connolly, J. A.D. (2011) Origin of the martian dichotomy and Tharsis from a giant impact causing massive magmatism. Icarus, 215(1), pp. 346-357. (doi: 10.1016/j.icarus.2011.06.012)

Keller, T. and Tackley, P. J. (2009) Towards self-consistent modeling of the martian dichotomy: the influence of one-ridge convection on crustal thickness distribution. Icarus, 202(2), pp. 429-443. (doi: 10.1016/j.icarus.2009.03.029)

This list was generated on Thu Apr 9 03:05:16 2020 BST.

Supervision

To join the team as students, Ph.D. candidates, or postdocs, please contact me with any questions or project ideas.

Current Opportunities

Competition for STFC-funded Ph.D. scholarship

Applications are currently invited for a Science and Technology Facilities Council (STFC) funded PhD award made to the University of Glasgow. There are five advertised projects (note: only a single scholarship will be awarded) for a duration of 3.5 years, with the programme to begin October 1, 2020. The details of the call along with requirements for candidates who wish to apply are detailed under this link.

The following is a list of five projects offered for this call. Projects 3 and 4 would be under my supervision:

Project 1 - Volatiles and Volcanoes on Proto-planets. Supervised by: Dr Lydia Hallis, Dr Luke Daly and Prof. Martin Lee

Project 2 - A data driven multiscale approach for understanding the Solar Systems oldest materials. Supervised by: Dr Luke Daly, and Dr Joshua Einsle

Project 3 - Masters of disguise: can achondrite parent bodies hide beneath a chondritic cover? Supervised by: Dr Tobias Keller, Dr Luke Daly, Dr Josh Einsle, Prof. Martin Lee

Project 4 - Understanding the lifespan of impact-induced hydrothermal systems from X-ray tomography and numerical modelling. Supervised by: Dr Tobias Keller, Dr Alice Macente, Dr Annemarie Pickersgill, Prof. Martin Lee

Project 5 - Feldspar behaviours baffle scientists: SHOCK! Supervised by: Dr Luke Daly, Dr Annemarie Pickersgill, and Prof. Martin Lee

Interested candidates are encouraged to contact me (Tobias.Keller@glasgow.ac.uk) with any questions. The deadline for application is 10 April 2020.

MSc by Research

Candidates are encouraged to apply for a Masters by Research programme, where they will engage in an independent research project of 1–1.5 years duration by which they will qualify for a MSc degree. Please feel free to inquire with your own project proposal, or apply for one of the two projects currently advertised withing my research group:

    Teaching

    We are currently working on integrating more computational skills into the curriculum at the School of Geographical and Earth Sciences. In the meantime, if you are interested in learning more about computational methods in geosciences, please contact me directly.