The Structural Geology and Tectonics Group led by Professor Whitney Behr welcomes applications for a 4-year Ph.D. position on subduction interface rheology, deformation, and microstructures.
Eclogite is a dense, high-pressure metamorphic rock that can influence the strength of subduction interfaces and the deep lower crust, affecting plate coupling, slab pull, crustal foundering, and how stresses accumulate and release at depth. Field observations indicate that, under certain conditions, eclogite deforms by diffusion creep-a weak, grain-size-sensitive mechanism that can accelerate deformation, enhance fluid transport, and help localize strain. However, the strength of eclogite in this regime has never been quantified experimentally. This project will deliver the first high-pressure/high-temperature calibration of eclogite diffusion-creep behavior and directly validate it against natural samples from Norway's Western Gneiss Region using field and microstructural observations. The
PhD student will focus on shear/deformation experiments, detailed microstructural analyses (EBSD/EDS, microprobe, FTIR, micro-CT), and the integration of experimental and natural datasets, including participation in field campaigns in the Western Gneiss Region.
Job description - Perform shear/deformation experiments under diffusion-creep conditions; assist with high-P/T runs
- Conduct microstructural and petrological analyses of experimental and natural samples (EBSD/EDS, microprobe, FTIR, micro-CT)
- Participate in fieldwork and sampling in Norway; link natural structures to laboratory results
- Present findings at group meetings, international conferences, and in peer-reviewed journals
Profile - MSc in Earth Sciences/Geology or a related field
- Background in structural geology, petrology, or rock mechanics; enthusiasm for experimental and microstructural work
- Solid English skills; collaborative, organized, and comfortable with field campaigns
- Curiosity, positivity, and care with delicate equipment
We offer - A friendly, dynamic, and interdisciplinary environment in the Structural Geology & Tectonics Group (led by Prof. Whitney Behr)
- Access to a wide range of experimental and analytical facilities at ETH Zentrum and ScopeM (Hönggerberg)
- Competitive ETH salary and benefits (see here ); 4 years fixed-term appointments
> Working, teaching and research at ETH Zurich
We value diversity and sustainability In line with our values , ETH Zurich encourages an inclusive culture. We promote equality of opportunity, value diversity and nurture a working and learning environment in which the rights and dignity of all our staff and students are respected. Visit our Equal Opportunities and Diversity website to find out how we ensure a fair and open environment that allows everyone to grow and flourish. Sustainability is a core value for us - we are consistently working towards a climate-neutral future .
