PhD Candidate in Cryogenian Tillites as a Window into Subglacial Rheology

100%, Zurich, fixed-term

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: Cryogenian Tillites as a Window into Subglacial Rheology
Ice streams are fast-moving zones within otherwise stable continental ice sheets, and basal flow and sliding along them is the primary mechanism for ice migration to the sea. Observations from modern ice sheets suggest that many of the fastest-flowing ice streams are underlain not by bedrock, but by reworked sediments derived from glacial erosion known as subglacial till. However, the deformation mechanisms and rheological processes operating in subglacial till are not well understood. This project aims to investigate the rheology of subglacial till through field studies of ancient Cryogenian glaciations in northern Europe. The findings will help refine basal drag estimates in modern environments and offer insights into Cryogenian glaciations and Snowball Earth.

Job description

Ice streams are fast-moving zones within otherwise stable continental ice sheets, and basal flow and sliding along them is the primary mechanism for ice migration to the sea. Observations from modern ice sheets suggest that many of the fastest-flowing ice streams are underlain not by bedrock, but by reworked sediments derived from glacial erosion known as subglacial till. However, the deformation mechanisms and rheological processes operating in subglacial till are not well understood. This project aims to investigate the rheology of subglacial till through field studies of ancient Cryogenian glaciations in northern Europe. The findings will help refine basal drag estimates in modern environments and offer insights into Cryogenian glaciations and Snowball Earth.

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
• Experience with ocean boating/kayaking and a general comfort with these activities in a cold-water environment is a plus

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Workplace

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

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
• 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 0041 (0)44 632 09 81 or email perscheng.assef@ eaps.ethz.ch (no applications).

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