rheology of rocks; grain size evolution; plate boundaries; rate- and state-dependent friction; geodynamic models; seismic cycle; fluid-solid coupling
Munch Jessica, Gerya Taras, Ueda Kosuke (2020), Oceanic crust recycling controlled by weakening at slab edges, in Nature Communications
, 11(1), 2009-2009.
Talebi Amir, Koulakov Ivan, Moradi Ali, Rahimi Habib, Gerya Taras (2020), Ongoing formation of felsic lower crustal channel by relamination in Zagros collision zone revealed from regional tomography, in Scientific Reports
, 10(1), 8224-8224.
Menant Armel, Angiboust Samuel, Gerya Taras, Lacassin Robin, Simoes Martine, Grandin Raphael (2020), Transient stripping of subducting slabs controls periodic forearc uplift, in Nature Communications
, 11(1), 1823-1823.
Perchuk A. L., Gerya T. V., Zakharov V. S., Griffin W. L. (2020), Building cratonic keels in Precambrian plate tectonics, in Nature
, 586(7829), 395-401.
Schierjott Jana C., Thielmann Marcel, Rozel Antoine B., Golabek Gregor J., Gerya Taras V. (2020), Can Grain Size Reduction Initiate Transform Faults?—Insights From a 3‐D Numerical Study, in Tectonics
, 39(10), e2019TC005.
Petrini Claudio, Gerya Taras, Yarushina Viktoriya, van Dinther Ylona, Connolly James, Madonna Claudio (2020), Seismo-hydro-mechanical modelling of the seismic cycle: Methodology and implications for subduction zone seismicity, in Tectonophysics
, 791, 228504-228504.
Gülcher Anna J. P., Gerya Taras V., Montési Laurent G. J., Munch Jessica (2020), Corona structures driven by plume–lithosphere interactions and evidence for ongoing plume activity on Venus, in Nature Geoscience
, 13(8), 547-554.
Baes Marzieh, Sobolev Stephan V., Gerya Taras, Brune Sascha (2020), Subduction Initiation by Plume‐Plateau Interaction: Insights From Numerical Models, in Geochemistry, Geophysics, Geosystems
, 21(8), e2020GC009.
Preuss Simon, Ampuero Jean Paul, Gerya Taras, van Dinther Ylona (2020), Characteristics of earthquake ruptures and dynamic off-fault deformation on propagating faults, in Solid Earth
, 11(4), 1333-1360.
Schierjott Jana, Rozel Antoine, Tackley Paul (2020), On the self-regulating effect of grain size evolution in mantle convection models: application to thermochemical piles, in Solid Earth
, 11(3), 959-982.
Chowdhury Priyadarshi, Chakraborty Sumit, Gerya Taras V., Cawood Peter A., Capitanio Fabio A. (2020), Peel-back controlled lithospheric convergence explains the secular transitions in Archean metamorphism and magmatism, in Earth and Planetary Science Letters
, 538, 116224-116224.
Yan Jun, Ballmer Maxim D., Tackley Paul J. (2020), The evolution and distribution of recycled oceanic crust in the Earth's mantle: Insight from geodynamic models, in Earth and Planetary Science Letters
, 537, 116171-116171.
Zhou Xin, Li Zhong-Hai, Gerya Taras V., Stern Robert J. (2020), Lateral propagation–induced subduction initiation at passive continental margins controlled by preexisting lithospheric weakness, in Science Advances
, 6(10), eaaz1048-eaaz1048.
Baes Marzieh, Sobolev Stephan, Gerya Taras, Brune Sascha (2020), Plume‐Induced Subduction Initiation: Single‐Slab or Multi‐Slab Subduction?, in Geochemistry, Geophysics, Geosystems
, 21(2), e2019GC008.
Menant Armel, Angiboust Samuel, Gerya Taras (2019), Stress-driven fluid flow controls long-term megathrust strength and deep accretionary dynamics, in Scientific Reports
, 9(1), 9714-9714.
van Dinther Ylona, Preiswerk Lukas E., Gerya Taras V. (2019), A Secondary Zone of Uplift Due to Megathrust Earthquakes, in Pure and Applied Geophysics
, 176(9), 4043-4068.
Preuss Simon, Herrendörfer Robert, Gerya Taras, Ampuero Jean‐Paul, Dinther Ylona (2019), Seismic and Aseismic Fault Growth Lead to Different Fault Orientations, in Journal of Geophysical Research: Solid Earth
, 124(8), 8867-8889.
Perchuk A.L., Zakharov V.S., Gerya T.V., Brown M. (2019), Hotter mantle but colder subduction in the Precambrian: What are the implications?, in Precambrian Research
, 330, 20-34.
Gerya Taras (2019), Introduction to Numerical Geodynamic Modelling
, Cambridge University Press, Cambridge.
In 2015, ETH Zürich participated as a partner in the EU H2020 project CREEP (Complex rheologies in Earth dynamics and industrial processes). This participation was funded by the State Secretariat for Education, Research and Innovation (SERI), and supported PhD candidates Jana Schierjott and Simon Preuss for a maximum of three years. Their research was aimed at numerical modelling of rheological controls for nucleation, evolution and seismicity of tectonic plate boundaries during global and regional plate tectonics processes. In 2016, two more PhD candidates (Claudio Petrini and Jessica Munch) joined this important research effort, who were funded for a maximum of three years by ETH-project ETH-0715-2 (Fluid controls on subduction thrust seismicity: seismo-hydro-thermo-mechanical modelling with experimental validation) and EU project SUBITOP (Understanding subduction zone topography through modelling of coupled shallow and deep processes), respectively. As the result of this co-funded multi-disciplinary effort, several types of tectonic plate boundaries were addressed by 2D and 3D (seismo)-thermo-mechanical modelling as well as their potential relationship to spontaneous strain localisation in global and regional mantle convection processes. Several important methodological and scientific results came from close interaction of these four PhD students, which include:1)Understanding influence of grain size reduction on global mantle convection with plate tectonics and nucleation of ridge-transform spreading patterns (Schierjott).2)Reproducing nucleation and aseismic/seismic growth, bending and branching of transform faults using continuum-based rate- and state-dependent friction formulation (Preuss).3)Development of fully coupled seismo-hydro-thermo-mechanical (SHTM) numerical modelling approach for modelling of seismic processes induced by fluid flow in subduction zones (Petrini).4)Understanding rheological controls of spontaneous development of STEP (Subduction-Transform Edge Propagator) faults in retreating subduction systems (Munch).Novel numerical implementation works performed by each of the four students is nearly finished, but the time needed for the development, modification and validation of 2D and 3D codes involved in this research program was distinctly underestimated. This creates the need for one-year funding extension for this research team of four closely collaborating students, which will allow them to finalize their research and publications and prepare their PhD theses. Since none of the original funding schemes allows for a project extension, we propose to fund the continuation of the research program of these four PhD students within this new SNSF project. The following key scientific goals will be achieved during this additional funding period:1)Investigating the roles of viscous anisotropy and grain size reduction for the global mantle convection with plate tectonics and spontaneous plate boundaries nucleation (Schierjott).2)Investigating the roles of rate- and state-dependent friction for the emergence, growth, geometry and seismicity of transform plate boundaries (Preuss).3)Investigating the roles of rheological solid-fluid coupling for earthquake cycles in subduction zones (Petrini).4)Investigating the roles of rheological weakening for spontaneously retreating subduction/collision systems with STEP faults (Munch). Finalizing this ambitious but realistic research program on plate boundaries with SNSF funds will allow the four PhD students to successfully complete their works and defend their PhD theses.