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PhD Candidate in the Rheology of Metasedimentary Rocks
Research in the Structural Geology and Tectonics group focuses on the rapidly deforming zones that define Earth’s tectonic plate boundaries and generate many of the planet’s geohazards. We are interested in the rates and directions in which faults and shear zones move; their geometries, widths and mechanical behaviours at depth; and the processes that shape them over geologic time.
Project background
Project: The Rheology of Metasedimentary Rocks
Due to the abundance of quartz in the subduction zone interface and the continental crust, quartz rheology (e.g., dislocation creep in quartz) is typically used to model the strength of metasedimentary rocks in the subduction zone interface and the ductile continental crust. While the metasedimentary component of these tectonic processes is modeled based on the rheology of pure quartz, most quartz-bearing rocks are polyphase aggregates, with micas representing a ubiquitous accessory phase regularly showing microstructural evidence for pressure solution creep (PSC). Yet the quantitative effects of micas on the rheological properties of quartz-bearing aggregates and PSC are poorly constrained. The goal of this project is to integrate mechanical and microstructural results from rock deformation experiments with natural examples of PSC in micaceous quartzites to understand and constrain the rheological parameters that control PSC in micaceous quartzites to more accurately model large-scale tectonic processes.
Job description
The successful candidate will be primary supervised by Dr. Leif Tokle and will involve collaboration with Dr. Claudio Madonna and Prof. Dr. Whitney Behr. The candidate will work primarily in the Rock Physics and Mechanics Laboratory at the ETH Zentrum campus on a Griggs apparatus as well as a newly developed high pressure and high temperature deformation apparatus, which is able to conduct deformation experiments at confining pressures up to 3 GPa. The candidate will also conduct microstructural analyses on both experimental and natural samples at ScopeM on the ETH Hönggerberg campus. The candidate will report their findings through group meetings, national and international conferences as well as peer-reviewed publications.
Profile
MSc in Earth Science or related field
Sound knowledge of the English language, both oral and written
Ability to work collaboratively in an interdisciplinary team
Keen interest in expanding our knowledge about rheology and tectonics
A curious mind, a positive attitude, and a love for research
Good dexterity with small tools and delicate equipment is a plus
We offer
Describe here what particularly distinguishes the work in your department/group e.g.:
A friendly, dynamic, and interdisciplinary environment at ETH in the Structural geology and Tectoncis group lead by Prof. Whitney Behr
A 100% fixed-term position for 4 years including a number of benefits offered by ETH
Access to a wide range of experimental and analytical facilities at both the Centrum campus and ScopeM at the Hönggerberg campus
We value diversity
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
Curious? So are we.
We look forward to receiving your online application with the following documents:
Curriculum (CV) detailing your academic qualifications and research experiences (3 pages maximum)
Statement of research interests (1 page maximum)
Proof of your MSc degree and transcripts of academic records or proof of anticipated completion in Fall 2025
Contact information for two potential referees
Please note that we exclusively accept applications submitted through our online application portal. Applications via email or postal services will not be considered.
Further information about the Department EAPS and the Group can be found on our website. Questions regarding the position should be directed to Mrs Perscheng Assef, Administrative Assistent, Tel +41 44 632 09 81 or email perscheng.assef@eaps.ethz.ch (no applications).
Application Link:
https://jobs.ethz.ch/job/view/JOPG_ethz_WeYhZeJKsf0p08jCw4
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