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I use experiments, modelling, and natural samples to understand the behaviour of magmatic volatiles in igneous and atmospheric processes and Earth and other bodies – at the moment particularly sulphur and its isotopes during degassing on Earth and Io! I use these techniques to investigate the influence of volatiles on eruption dynamics, how to interpret gas emission data for volcano monitoring, and model planetary-scale volatile cycling.

I’m currently a postdoctoral scholar in geology in the Division of Geological and Planetary Sciences at the California Institute of Technology and part of the Technical Team for Volcanica, the Diamond open-access journal for all things volcano-related. I did my undergraduate at Pembroke College, University of Cambridge, in Natural Sciences (specialising in Earth Sciences), where my master’s thesis investigated how peralkaline magmas fragment despite their low viscosity. I did my PhD at the School of Earth Sciences, University of Bristol, with  GNS Science (New Zealand) where I combined novel microanalytical technique development, experimental petrology, and melt inclusion analysis to understand changes in magma composition prior to eruption.

I like hiking, cycling, climbing, and travelling.


What’s new? 

Short course on EPMA in the Earth Sciences I’m helping to run [5-9 April 2021]

New paper on melt inclusion preparation and analysis.

Check out these teaching resources on integrating topics on racism, colonialism, imperialism, environmental damage, and exploitation of natural resources into geoscience topics put together by GeoContext.


Google ScholarResearchGate — Twitter

ehughes[at]caltech[dot]edu

California Institute of Technology
Division of Geological and Planetary Sciences
1200 East California Blvd.
Pasadena, CA, 91125