Friction and scale-dependent deformation processes of large experimental carbonate faults

Tesei, Telemaco; Carpenter, B. M.; Giorgetti, Carolina; Scuderi, M. M.; Sagy, Amir; Scarlato, Piergiorgio; Collettini, Cristiano

doi:10.1016/j.jsg.2017.05.008

Cited by 29 publications

(26 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7E) that form the principal slip surfaces (Fig. 7D) indicates that granular plasticity was also active during deformation (Kennedy and Logan, 1998;Tesei et al, 2017).…”

Section: Discussionmentioning

confidence: 94%

“…In addition, some studies have reported evidences for fluid-assisted dissolution and precipitation mechanisms (e.g. Carpenter et al, 2016), and granular plasticity represented by the formation of dense aggregates of nanograins (Tesei et al, 2017;Sagy et al, 2017). From these laboratory observations emerge the coexistence of pressure sensitive and insensitive processes governing the deformation style of carbonate-bearing simulated faults.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Strength evolution of simulated carbonate-bearing faults: The role of normal stress and slip velocity

Mercuri

Scuderi

Tesei

et al. 2018

Journal of Structural Geology

Self Cite

View full text Add to dashboard Cite

The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.

show abstract

“…7E) that form the principal slip surfaces (Fig. 7D) indicates that granular plasticity was also active during deformation (Kennedy and Logan, 1998;Tesei et al, 2017).…”

Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Strength evolution of simulated carbonate-bearing faults: The role of normal stress and slip velocity

Mercuri

Scuderi

Tesei

et al. 2018

Journal of Structural Geology

Self Cite

View full text Add to dashboard Cite

show abstract

“…The maximum displacement (370–650 m) of each fault segment is partitioned along subparallel slipping zones extending for a total width of about 50 m (Collettini et al, ). These slipping zones, developed within the calcare massiccio formation, are characterized by a prominent slip surface with different slip surface phenomena, including pluck‐holes, grooves, wear striae, circular cracks, and comb fractures (Collettini et al, ; Tesei et al, ) as shown in Figures a and b.…”

Section: Field Study Area—the Monte Maggio Normal Faultmentioning

confidence: 99%

“…Geochemistry, Geophysics, Geosystems 10.1002/2017GC007097 wear striae, circular cracks, and comb fractures (Collettini et al, 2014a;Tesei et al, 2017) as shown in Figures 2a and 2b.…”

Section: Field Study Area-the Monte Maggio Normal Faultmentioning

confidence: 99%

Physical and Transport Property Variations Within Carbonate‐Bearing Fault Zones: Insights From the Monte Maggio Fault (Central Italy)

Trippetta

Carpenter

Mollo

et al. 2017

Geochem Geophys Geosyst

View full text Add to dashboard Cite

The physical characterization of carbonate‐bearing normal faults is fundamental for resource development and seismic hazard. Here we report laboratory measurements of density, porosity, Vp, Vs, elastic moduli, and permeability for a range of effective confining pressures (0.1–100 MPa), conducted on samples representing different structural domains of a carbonate‐bearing fault. We find a reduction in porosity from the fault breccia (11.7% total and 6.2% connected) to the main fault plane (9% total and 3.5% connected), with both domains showing higher porosity compared to the protolith (6.8% total and 1.1% connected). With increasing confining pressure, P wave velocity evolves from 4.5 to 5.9 km/s in the fault breccia, is constant at 5.9 km/s approaching the fault plane and is low (4.9 km/s) in clay‐rich fault domains. We find that while the fault breccia shows pressure sensitive behavior (a reduction in permeability from 2 × 10−16 to 2 × 10−17 m2), the cemented cataclasite close to the fault plane is characterized by pressure‐independent behavior (permeability 4 × 10−17 m2). Our results indicate that the deformation processes occurring within the different fault structural domains influence the physical and transport properties of the fault zone. In situ Vp profiles match well the laboratory measurements demonstrating that laboratory data are valuable for implications at larger scale. Combining the experimental values of elastic moduli and frictional properties it results that at shallow crustal levels, M ≤ 1 earthquakes are less favored, in agreement with earthquake‐depth distribution during the L'Aquila 2009 seismic sequence that occurred on carbonates.

show abstract

“…If the two contacting surfaces are perfectly flat (or mirrored), compaction does not promote contact mating since mesoscale fracture orientation and microscopic contacts are parallel. However, natural fault surfaces are never perfectly flat—rather, they exhibit scale‐dependent roughness (Candela et al, ; Power et al, ; Renard & Candela, ; Tesei et al., ). Moreover, recent observations indicate that there is a small‐scale (typically a few tens of microns wavelengths) minimum roughness that exists on the sheared surfaces regardless of slip direction (Candela & Brodsky, ).…”

Section: Introductionmentioning

confidence: 99%

Cyclic Permeability Evolution During Repose Then Reactivation of Fractures and Faults

Elsworth

Wang

2019

JGR Solid Earth

View full text Add to dashboard Cite

Cyclic growth and decay of permeability in fractures is explored during repeated reactivation and repose of saw-cut fractures of Green River shale. These slide-hold-slide experiments are supported by measurements of fracture normal deformation and optical surface profilometry. Overall, we observe continuous permeability decay during repose (holds) and significant permeability enhancement during slow reactivation (slide). The permeability decay is accompanied by fault compaction. Both hydraulic aperture change (Δb h ) and measured compaction (Δb s ) are consistent with time-dependent power law closure with a power exponent of~0.2-0.4. These dual compaction magnitudes are positively correlated but Δb h > Δb s in late stage holds. Permeability enhancement during reactivation is typically also accompanied by fault dilation. However, we also observe some cases where hydraulic aperture change decouples from the measured deformation, conceivably driven by mobilization of wear products and influenced by the development of flow bottlenecks. Pretest and posttest surface profiles show that the surface topography of the fractures is planed down by shear removal. The shear removal is significant with initial laboratory prepared surface (~10 μm of aperture height) but less significant following consecutive reactivations (~2 μm). The flattened surfaces retain small-scale,~10-20 μm wavelength, roughness. Flow simulations, constrained by the surface topography and measured deformation, indicate that small-scale roughness may control permeability at flow bottlenecks within a dominant flow channel. These results suggest cycles of permeability creation and destruction are an intrinsic component of the natural hydraulic system present in faults and fractures and provide an improved mechanistic understanding of the evolution of permeability during fault repose and reactivation.

show abstract

Friction and scale-dependent deformation processes of large experimental carbonate faults

Cited by 29 publications

References 65 publications

Strength evolution of simulated carbonate-bearing faults: The role of normal stress and slip velocity

Strength evolution of simulated carbonate-bearing faults: The role of normal stress and slip velocity

Physical and Transport Property Variations Within Carbonate‐Bearing Fault Zones: Insights From the Monte Maggio Fault (Central Italy)

Cyclic Permeability Evolution During Repose Then Reactivation of Fractures and Faults

Contact Info

Product

Resources

About