Tectonics at FSU
Dr. Mitchell McMillan

My lab studies continental tectonics, geodynamics, and surface processes to better understand the planet we call home. Current projects include the lithosphere dynamics of mountain belts (Earth/Venus), the reactive thermodynamics of lower crustal metamorphism, and the role of extreme wind erosion in arid landscapes (Earth/Mars). Techniques range from mapping and structural geology, to numerical modelling of geodynamic and surface processes, to thermochronology and cosmogenic nuclide analysis. We are currently looking for graduate students and postdocs to join our team. If you are interested in any of these topics, or related ones, I encourage you to get in touch!

News

May 1, 2026
Assistant Professor FSU

I’m excited to start as an Assistant Professor in the department of Earth, Ocean, and Atmospheric Science (EOAS) at Florida State University, where I will also be teaching structural geology. Students interested in joining my group are encouraged to contact me directly.

October 30, 2025
Using Git and GitHub for scientific collaboration

I developed a tutorial on using Using Git and GitHub for scientific collaboration. The slides were created for the Earth Systems Modelling class at Georgia Tech.

View the slides here
August 3, 2025
CIG Meeting

I presented new research on two-phase flow at the Community Infrastructure for Geodynamics meeting in Breckenridge.

Check out our poster here
March 10, 2025
Paper published in EPSL

In our recent paper published in EPSL, “Reactive thermodynamics of crustal eclogitization and foundering,” we argue that lithospheric foundering could be a predictable outcome of subduction. In doing so, we take a deep dive into the thermodynamics of the granulite-eclogite phase transition and how water catalyzes these reactions.

Read it here
September 2, 2024
Ada Lovelace workshop in Sète France

My poster summarizing some recent results will be titled “Eclogitization of the lower crust: A reactive thermodynamic-geodynamic approach” - coauthors Shi Joyce Sim and Cian Wilson.

Workshop information
December 14, 2023
AGU 2023 Fall Meeting

I will be giving my talk, “Reactive thermodynamics of crustal foundering,” at the AGU 2023 fall meeting in San Francisco. The session is “Orogeny and its Processes” and is sure to be interesting.

View AGU abstract
August 22, 2023
Paper published in GRL

Our lithospheric drip modelling paper is published in Geophysical Research Letters and is titled “Plateau formation controlled by lithospheric foundering under a weak crust.” We show how a lithospheric drip affects an actively growing mountain belt.

Read it here
December 27, 2022
Paper published in G-cubed

Our comprehensive synthesis of lithspheric dripping, “Diverse styles of lithospheric dripping: Synthesizing gravitational instability models, continental tectonics, and geologic observations,” is published in Geochemistry, Geophysics, Geosystems. This is the most up-to-date review of every location where lithospheric dripping has been proposed on Earth, and we find some evidence for different styles of dripping.

Read it here