The effect of clay content on the dilatancy and frictional properties of fault gouge

IR Ashman, DR Faulkner - Journal of Geophysical Research …, 2023 - Wiley Online Library
Mature fault cores are comprised of extremely fine, low permeability, clay‐bearing gouges.
Saturated granular fault materials are known to dilate in response to increases in sliding …

Meso-to nano-scale evidence of fluid-assisted co-seismic slip along the normal Mt. Morrone Fault, Italy: Implications for earthquake hydrogeochemical precursors

M Coppola, A Correale, MD Barberio, A Billi… - Earth and Planetary …, 2021 - Elsevier
Fluids play an important role in seismic faulting both at hypocentral depths during
earthquake nucleation and at shallower crustal levels during rupture propagation. Pre-to co …

How do laboratory friction parameters compare with observed fault slip and geodetically derived friction parameters? Insights from the Longitudinal Valley Fault …

SAM Den Hartog, MY Thomas… - Journal of Geophysical …, 2021 - Wiley Online Library
Laboratory measurements of constitutive frictional parameters are commonly inferred to
explain the wide variety of slip behavior seen on natural faults. The extent to which these …

Frictional strength and fluidization of water-saturated kaolinite gouges at seismic slip velocities

LW Kuo, WJ Wu, CW Kuo, SAF Smith, WT Lin… - Journal of Structural …, 2021 - Elsevier
Most previous experiments conducted on water-saturated clay-rich gouges sheared under
extreme deformation conditions (including seismic slip rates eg, 1 m/s, and displacements …

Mechanical amorphization of synthetic fault gouges during rotary‐shear friction experiments at subseismic to seismic slip velocities

S Kaneki, K Oohashi, T Hirono… - Journal of Geophysical …, 2020 - Wiley Online Library
Although the effects of mechanical amorphization by fault motion on fault rocks have been
investigated both in nature and experiments, the relationship between slip processes and …

Frictional Properties of the Longmenshan Fault Belt Gouges From WFSD‐3 and Implications for Earthquake Rupture Propagation

LW Kuo, CC Hung, H Li, S Aretusini… - Journal of …, 2022 - Wiley Online Library
Abstract The 2008 Mw 7.9 Wenchuan earthquake generated∼ 270 and∼ 80 km long
surface ruptures along the Longmenshan fault belt, namely the Yingxiu‐Beichuan fault …

[HTML][HTML] Evidence of frictional melting in fault rock drill cuttings from the enhanced geothermal system site in Pohang, South Korea

S Jung, JH Kang, Y Kil, H Jung - Tectonophysics, 2023 - Elsevier
Abstract The 5.5 magnitude (Mw) earthquake in Pohang, South Korea in 2017 was one of
the largest triggered earthquakes at an enhanced geothermal system (EGS) site. Faults that …

Slow‐to‐fast deformation in mafic fault rocks on an active low‐angle normal fault, Woodlark Rift, SE Papua New Guinea

M Mizera, T Little, C Boulton, D Prior… - Geochemistry …, 2020 - Wiley Online Library
Slip on the active Mai'iu low‐angle normal fault in Papua New Guinea that dips 15–24° at
the surface has exhumed in its footwall a single, continuous fault surface across a> 25‐km …

Crush-origin pseudotachylyte in granitic mylonites of continental exhumed Ailaoshan-Red River shear zone southeastern Asia

W Li, S Cao, L Zhan, X Cheng, W Li, M Lyu - Journal of Structural Geology, 2022 - Elsevier
Tectonic pseudotachylytes have provided valuable insights into the evolution of seismic
activity during crustal deformation. However, the origin and formation processes of …

[HTML][HTML] The impact of melt versus mechanical wear on the formation of pseudotachylyte veins in accretionary complexes

B Moris-Muttoni, H Raimbourg, R Augier… - Scientific Reports, 2022 - nature.com
Whether seismic rupture propagates over large distances to generate mega-earthquakes or
is rapidly aborted mainly depends on the slip processes within the fault core, including …