Mr Simon Guerin-marthe
2013-2015 MSc in mineral exploration and natural hazards with honors (Joseph Fourier University, Grenoble, France)
2012-2013 BSc in earth and environmental sciences with honors (Lille 1 university, France)
Guerin-Marthe, S. Adam, L., Townend, J.,Toy, V. (2015) How does the Textural Character of Alpine Fault Rocks Influence their Elasticity and Anisotropy. In AGU Fall Meeting Abstracts.
Adam, L., Frehner, M., Sauer, K. M., Toy, V., Guerin-Marthe, S., & Boulton, C. J. (2017, December). Reconciling experimental and static-dynamic numerical estimations of seismic anisotropy in Alpine Fault mylonites. In AGU Fall Meeting Abstracts.
Pozzi, G., Benson, P. M., Guerin-Marthe, S., De Paola, N., Nielsen, S. B., Bowen, L., ... & Holdsworth, R. (2017, December). The transition from brittle cataclasis to viscous flow during the weakening of carbonate gouges sheared at seismic velocities recorded through the activity of acoustic emissions. In AGU Fall Meeting Abstracts.
Nielsen, S., Guerin-Marthe, S., Harbord, C. W. A., Paola, N., Kaneko, Y., Latour, S., & Carpenter, B. M. (2017, December). Gradual or abrupt earthquake rupture initiation controlled by fault structure. In AGU Fall Meeting Abstracts.
Guerin-Marthe, S., Nielsen, S. B., Giani, S., Bird, R., & Di Toro, G. (2017, September). Earthquake Nucleation Size: Evidence of Loading Rate Dependence in Laboratory Faults. Seminar University of Chile, Santiago.
Guerin-Marthe, S., Nielsen, S. B., Giani, S., Bird, R., & Di Toro, G. (2017, December). Earthquake Nucleation Size: Evidence of Loading Rate Dependence in Laboratory Faults. In AGU Fall Meeting Abstracts.
PhD project: Modelling waves and earthquake rupture
Funding : Durham Doctoral Studentship
The aim of this project is to simulate earthquake rupture both in the laboratory, and numerically. We are interrested in methods to estimate how the stress builds up, and how waves propagate, before and during a rupture.
In the Rock Mechanics Laboratory, one analog model consists in polarized light passing through two birefringent plates (polycarbonate) which enables to visualize the stress field variation during ruptures. Acoustic emissions and strains are also measured with piezoelectric transducers, and strain gages, respectively. A triaxial apparatus is also used to reproduce earthquakes on simulated faults, under pressure representative of the earth's crust.
Finite difference and finite element models are used to support and understand the experimental observations.
Previous research contributions
2015- Anisotropy and elasticity measurements of Alpine Fault rocks, Deep Fault Drilling Project, University of Auckland (supervisor : Ludmila ADAM)
2014- Labview programming for rock fracturing experiments, Université Joseph Fourier, Grenoble (supervisor : Francois RENARD)
2013- U-Pb Dating of zircons and titanites, Université Lille 1 (supervisor : Cyril DURAND)
2012- Dust distribution measurements in ice samples for the NEEM consortium, Université Joseph Fourier, Grenoble (supervisor: Jean-Robert PETIT)
Department of Earth Sciences
- Further Mathematics for Geoscientists (60 hours/year.)
- Modelling Earth Processes (60 hours/year.)
- Seismology (30 hours/year.)