Ternary fault permeability diagram: An innovative way to estimate fault zones hydraulics

Double surface rupture and hydraulic recharge of a three-fault system during the Mw 4.9 earthquake of 11 November 2019 at Le Teil (France)

“…The continuous medium ("matrix") and the "fault" elements are characterized by a large range of porosity and permeability 37,38 (Table 1). For the "matrix", we use a permeability of 10 layers along the fault zones in the Upper Barremian/Urgonian limestones [38][39][40] .…”

Episodic Reactivation of Carbonate Fault Zones with Implications for Permeability – an Example from Provence, Southeast France

“…Preferential cementation of the fault zone was probably caused by high-permeability, localized pathways that conducted cementing fluids close to the fault (e.g. Billi et al, 2003), but overall, the Castellas fault is thought to have a mixed behavior as either fluid conduit or barrier depending on local aspects like width of fault core, degree of cementation, local fault throw and facies variation (Matonti et al, 2012;Aubert et al, 2021). Our study builds upon the paragenetic sequence previously established by Léonide et al (2014), Aubert et al (2020) and Cochard et al (2021) focusing on the absolute timing and effect of deformation and/or cementation on fault zone permeability.…”

“…Cement textures, composition, crosscutting relationships, fracture intensity analysis around and away from fault cores, spatial arrangement, and geochronology can all be used to reconstruct the evolution of brittle deformation and associated poro-permeability (e.g. Hansman et al, 2018;Aubert et al, 2019Aubert et al, , 2020Aubert et al, , 2021Cochard et al, 2021;Hoareau et al, 2021;Muñoz-López et al, 2022). Importantly, recent advances in calcite U-Pb geochronology allow direct dating of the absolute timing of calcite precipitation (Rasbury and Cole, 2009;Roberts et al, 2020;Roberts and Walker, 2016;Goodfellow et al, 2017;, opening an opportunity for in-depth structural-diagenetic studies of the evolutionary history of carbonate-rich fault zones (e.g.…”

“…Importantly, recent advances in calcite U-Pb geochronology allow direct dating of the absolute timing of calcite precipitation (Rasbury and Cole, 2009;Roberts et al, 2020;Roberts and Walker, 2016;Goodfellow et al, 2017;, opening an opportunity for in-depth structural-diagenetic studies of the evolutionary history of carbonate-rich fault zones (e.g. Hansman et al, 2018;Aubert et al, 2019Aubert et al, , 2020Aubert et al, , 2021Cochard et al, 2021;Smeraglia et al, 2021;Hoareau et al, 2021;Muñoz-López et al, 2022). However, good exposures of carbonate fault zones that permit adequate analysis of all these characteristics are rare.…”

Fault characterization and flow barrier detection using capacitance-resistance model and diagnostic plots

“…Although fault characteristics are commonly presented as similar over the fault plane, the transmissibility of a fault can be highly heterogeneous and influenced by many factors (Moretti, 1998;Zhang et al, 2011). The sealing or non-sealing nature of a fault depends on the time scale and may evolve over time (Aubert et al, 2021;Biryukov and Kuchuk, 2012;Moretti, 1998;Yaxley, 1987), due to possible seismic activities (Keranen et al, 2013), or injection pressurization and induced seismicity (Mosaheb and Zeidouni, 2018;Rutqvist et al, 2007).…”