Társilo GIRONA

My work focuses on understanding the behaviour of openly-degassing volcanoes, i.e. volcanoes that passively release several kilotonnes of gas per day from unerupted magma. Particularly, my work addresses four broad questions:

  • How passive degassing activity may induce volcanic unrest and magmatic eruptions;
  • How viscous foam dynamics works and how it can explain gas-pistoning events (namely, sudden rise and fall of bubbly magma columns);
  • How non-newtonian rheologies of crystal-rich magmas affect the ascent of magma through dykes; and
  • What geochemical modeling in crystals reveals about magmatic timescales.

I investigate these four questions by using varied approaches ranging from theoretical models and numerical simulations (lattice-Boltzmann, finite volume methods, finite difference techniques, etc.) to laboratory analog experiments. Even though in my research I use only Mayon volcano in the Philippines as a case study, my research applies to openly-degassing volcanoes in general. Understanding the physicochemical processes occurring at openly-degassing volcanoes will improve the forecasting of their future magmatic eruptions.

Education:
  • 2010-present Ph.D. Earth Science, volcanology, Earth Observatory of Singapore, NTU
  • 2010 M.S. Geophysics and Meteorology, Univ. Complutense of Madrid, Spain
  • 2009 B.S. Physics (First Class Honours), Univ. Complutense of Madrid, Spain
Honours and Awards:
  • 2009 VII Arquímedes Contest, Education Ministry of Spain: “Design of a software to model the multicomponent diffusive reequilibration. Determination of the time scales of magmatic processes in Tenerife”