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 …

Frictional Properties of Simulated Fault Gouges from the Seismogenic Groningen Gas Field Under In Situ PT ‐Chemical Conditions

LB Hunfeld, AR Niemeijer… - Journal of Geophysical …, 2017 - Wiley Online Library
We investigated the frictional properties of simulated fault gouges derived from the main
lithologies present in the seismogenic Groningen gas field (NE Netherlands), employing in …

[HTML][HTML] High-velocity frictional properties of Alpine Fault rocks: Mechanical data, microstructural analysis, and implications for rupture propagation

C Boulton, L Yao, DR Faulkner, J Townend… - Journal of Structural …, 2017 - Elsevier
Abstract The Alpine Fault in New Zealand is a major plate-bounding structure that typically
slips in∼ M8 earthquakes every c. 330 years. To investigate the near-surface, high-velocity …

Seismic potential of weak, near-surface faults revealed at plate tectonic slip rates

MJ Ikari, AJ Kopf - Science advances, 2017 - science.org
The near-surface areas of major faults commonly contain weak, phyllosilicate minerals,
which, based on laboratory friction measurements, are assumed to creep stably. However, it …

[HTML][HTML] The fluid budget of a continental plate boundary fault: Quantification from the Alpine Fault, New Zealand

CD Menzies, DAH Teagle, S Niedermann… - Earth and Planetary …, 2016 - Elsevier
Fluids play a key role in modifying the chemical and physical properties of fault zones, which
may prime them for repeated rupture by the generation of high pore fluid pressures and …

Large‐displacement, hydrothermal frictional properties of DFDP‐1 fault rocks, Alpine Fault, New Zealand: Implications for deep rupture propagation

AR Niemeijer, C Boulton, VG Toy… - Journal of …, 2016 - Wiley Online Library
Abstract The Alpine Fault, New Zealand, is a major plate‐bounding fault that accommodates
65–75% of the total relative motion between the Australian and Pacific plates. Here we …

Laboratory slow slip events in natural geological materials

MJ Ikari - Geophysical Journal International, 2019 - academic.oup.com
Slow slip events (SSEs) and other forms of slow and transient fault slip are becoming
increasingly recognized as important, due to their influence on seismicity and potential to …

Low‐temperature frictional characteristics of chlorite‐epidote‐amphibole assemblages: Implications for strength and seismic style of retrograde fault zones

Å Fagereng, MJ Ikari - Journal of Geophysical Research: Solid …, 2020 - Wiley Online Library
In retrograde faults exhuming mafic rocks, shearing occurs in metamorphic and/or
hydrothermally altered mineral assemblages whose frictional properties are not well known …

Heterogeneity in microseismicity and stress near rupture‐limiting section boundaries along the late‐interseismic alpine fault

E Warren‐Smith, J Townend… - Journal of …, 2022 - Wiley Online Library
Paleoseismic evidence from the late‐interseismic Alpine Fault suggests key section
boundaries conditionally inhibit rupture. We utilize a year of data from a two‐part …

Fluid–rock interactions in seismic faults: Implications from the structures and mineralogical and geochemical compositions of drilling cores from the rupture of the 2008 …

Q Duan, X Yang, S Ma, J Chen, J Chen - Tectonophysics, 2016 - Elsevier
We describe the structural features and mineralogical and geochemical compositions of the
fault rocks recovered from boreholes at the Golden River site on the Yingxiu–Beichuan fault …