July 7, 2021

Team Profile:
Craig Miller

photo credit:
Craig Miller

1.     Why are you involved in geothermal / supercritical research?

It mixes my research interest in geophysics applied to volcanoes, with the exploration for geothermal resources that are commonly found at volcanoes. The supercritical aspect is particularly interesting, as knowledge of magma location has both implications for societal hazard, as well as energy resources.

2.     What is the favourite part of your work?

I enjoy the cycle of field work to modelling, as it mixes travel to remote locations with state of the art computer modelling and interpretation of the results. Seeing field measurements transformed into useful knowledge for society is rewarding.

3.     What is the publication you’re most proud of?

Miller, C. A.,Williams-Jones, G., Fournier, D., & Witter, J. (2017). 3D gravity inversion and thermodynamic modelling reveal properties of shallow silicic magma reservoir beneath Laguna del Maule, Chile. Earth and Planetary Science Letters, 459, 14–27.

What was the research finding?

That a large magma body with high melt and volatile content exists at shallow depth below Laguna del Maule Volcanic Field, Chile.

Why is it important?

Large accumulations of shallow gas rich magmas are a great threat for eruptions that can impact wide areas, but are also potentially sources of geothermal energy.

4.     What is your favourite photo of you doing research?

Where are you?

At Laguna del Maule volcanic field, Chile.

What are you doing?

Measuring gravity! The top photo shows the arid landscape, measuring lava on a rhyolite outcrop. In the second photo, I’m wearing a life jacket because we were taking measurements around the lake shore. It was also really cold and the life jacket kept me warm.

Read more about Craig's experience here.

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