All Outputs (3)

Coseismic fault lubrication by viscous deformation (2021)
Journal Article
Pozzi, G., De Paola, N., Nielsen, S., Holdsworth, R., Tesei, T., Thieme, M., & Demouchy, S. (2021). Coseismic fault lubrication by viscous deformation. Nature Geoscience, 14(6), 437-442. https://doi.org/10.1038/s41561-021-00747-8

Despite the hazard posed by earthquakes, we still lack fundamental understanding of the processes that control fault lubrication behind a propagating rupture front and enhance ground acceleration. Laboratory experiments show that fault materials dram... Read More about Coseismic fault lubrication by viscous deformation.

Lithological and stress anisotropy control large-scale seismic velocity variations in tight carbonates (2021)
Journal Article
Trippetta, F., Barchi, M., Tinti, E., Volpe, G., Rosset, G., & De Paola, N. (2021). Lithological and stress anisotropy control large-scale seismic velocity variations in tight carbonates. Scientific Reports, 11, Article 9472. https://doi.org/10.1038/s41598-021-89019-4

Our knowledge of subsurface structures often derives from seismic velocities that are measured during seismic acquisition surveys. These velocities can greatly change due to lithological, fracture frequencies and/or effective pressure/temperature var... Read More about Lithological and stress anisotropy control large-scale seismic velocity variations in tight carbonates.

Shear deformation of nano- and micro-crystalline olivine at seismic slip rates (2021)
Journal Article
Thieme, M., Pozzi, G., Demouchy, S., De Paola, N., Barou, F., Koizumi, S., & Bowen, L. (2021). Shear deformation of nano- and micro-crystalline olivine at seismic slip rates. Tectonophysics, 802, Article 228736. https://doi.org/10.1016/j.tecto.2021.228736

Several thermally activated mechanisms have been proposed to explain the dynamic weakening of faults at fast, seismic slip rates v > 0.1 m s- 1. Nevertheless, direct constraints from microstructural observations on the operation of such weakening mec... Read More about Shear deformation of nano- and micro-crystalline olivine at seismic slip rates.