Geological fingerprints of deep slow earthquakes: A review of field constraints and directions for future research

JP Platt, D Grujic, NJ Phillips, S Piazolo… - …, 2024‏ - pubs.geoscienceworld.org
Slow earthquakes, including low-frequency earthquakes, tremor, and geodetically detected
slow-slip events, have been widely detected, most commonly at depths of 40–60 km in …

Dynamic slab segmentation due to brittle–ductile damage in the outer rise

TV Gerya, D Bercovici, TW Becker - Nature, 2021‏ - nature.com
Subduction is the major plate driving force, and the strength of the subducting plate controls
many aspects of the thermochemical evolution of Earth. Each subducting plate experiences …

Criterion for residual strength and brittle-ductile transition of brittle rock under triaxial stress conditions

M He, J Zuo, Z Yuan, X Ma, Z Zhang, C Ma - Geoenergy Science and …, 2024‏ - Elsevier
The critical condition with respect to the brittle-ductile transition (BDT) is of great significance
in understanding the distinction between brittle and ductile behavior for rocks. In this paper …

Brittle-ductile failure transition in geomaterials modeled by a modified phase-field method with a varying damage-driving energy coefficient

T You, H Waisman, QZ Zhu - International Journal of Plasticity, 2021‏ - Elsevier
With elevated confining pressure and low temperatures, geomaterials may exhibit brittle-to-
ductile failure transition due to increased cataclastic flow. In this work, we propose a …

[HTML][HTML] A comparison between rate-and-state friction and microphysical models, based on numerical simulations of fault slip

MPA Van den Ende, J Chen, JP Ampuero… - Tectonophysics, 2018‏ - Elsevier
Rate-and-state friction (RSF) is commonly used for the characterisation of laboratory friction
experiments, such as velocity-step tests. However, the RSF framework provides little …

A novel micromechanics-enhanced phase-field model for frictional damage and fracture of quasi-brittle geomaterials

T You, H Waisman, WZ Chen, JF Shao… - Computer Methods in …, 2021‏ - Elsevier
Cracking in quasi-brittle geomaterials is a complex mechanical phenomenon, driven by
various dissipation mechanisms across multiple length scales. While some recent promising …

[HTML][HTML] Nanocrystalline principal slip zones and their role in controlling crustal fault rheology

BA Verberne, O Plümper, CJ Spiers - Minerals, 2019‏ - mdpi.com
Principal slip zones (PSZs) are narrow (< 10 cm) bands of localized shear deformation that
occur in the cores of upper-crustal fault zones where they accommodate the bulk of fault …

Semi‐brittle deformation of Carrara marble: Hardening and twinning induced plasticity

E Rybacki, L Niu, B Evans - Journal of Geophysical Research …, 2021‏ - Wiley Online Library
Semi‐brittle flow occurs when crystal plasticity and cataclastic mechanisms operate
concurrently and may be common at mid‐levels of the Earth's crust. Using a Paterson gas …

Weak phases production and heat generation control fault friction during seismic slip

H Rattez, M Veveakis - Nature Communications, 2020‏ - nature.com
The triggering and magnitude of earthquakes is determined by the friction evolution along
faults. Experimental results have revealed a drastic decrease of the friction coefficient for …

Flow‐to‐friction transition in simulated calcite gouge: Experiments and microphysical modeling

J Chen, BA Verberne… - Journal of Geophysical …, 2020‏ - Wiley Online Library
A (micro) physical understanding of the transition from frictional sliding to plastic or viscous
flow has long been a challenge for earthquake cycle modeling. We have conducted ring …