Structural properties of rift-related normal faults: the case study of the Gulf of Corinth, Greece

Micarelli, L.

doi:10.1016/s0264-3707(03)00051-6

Cited by 97 publications

(50 citation statements)

References 45 publications

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“…Usually in fault zones, two main domain can be identified: a fault core of small thickness constituted of highly comminuted ultra-cataclasites is surrounded with a damage zone which consists of fractured host rock (e.g [51][52][53]). The ultracataclastic structure is the results of numerous earthquake ruptures.…”

Section: Resultsmentioning

confidence: 99%

Shear banding in drained and undrained triaxial tests on a saturated sandstone: Porosity and permeability evolution

Sulem

Ouffroukh

2006

International Journal of Rock Mechanics and Mining Sciences

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To cite this version:Jean Sulem, Hichem Ouffroukh. Shear-banding in drained and undrained triaxial tests on a saturated sandstone ; porosity and permeability evolution.. AbstractDetailed analysis of shear band formation and shear band microstructure formed in drained and undrained triaxial tests on Fontainebleau sandstone is presented. It is shown that under globally undrained conditions, local fluid exchanges inside the sample occur at shear banding resulting into an heterogeneous damage pattern along the shear band. At high confinement, pore pressure generation inside the band leads locally to fluidisation of the crushed material which results into the formation of connected channels in the heart of the band. Image processing analysis is used for evaluation of porosity inside the shear band and estimation of the permeability is performed using the Walsh and Brace [26] model. It is shown that, porosity increase as observed in the band at low confining pressure and porosity decrease as observed at high confining pressure are both accompanied by a reduction of permeability inside the shear band due to the increase of tortuosity and specific surface. However, this permeability reduction is much more important at high confining pressure and can reach values three orders of magnitude smaller than the permeability of the intact material.

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Section: Resultsmentioning

confidence: 99%

Shear banding in drained and undrained triaxial tests on a saturated sandstone: Porosity and permeability evolution

Sulem

Ouffroukh

2006

International Journal of Rock Mechanics and Mining Sciences

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“…In a wider context, heterogeneity within a fault core in carbonates can be further emphasized by complex fault core facies association (e.g., Bastesen & Braathen, 2010) due to the coexistence of shale smear and clay gouge (e.g., Lindsay et al, 1993;Yielding et al, 1997), carbonate breccia (Billi, 2005b;Micarelli et al, 2003Micarelli et al, , 2006 and/or secondary calcite (e.g., Benedicto et al, 2008).…”

Section: Bucci Et Almentioning

confidence: 99%

Bacterial migration through low-permeability fault zones in compartmentalised aquifer systems: a case study in Southern Italy

Bucci¹,

Petrella²,

Naclerio³

et al. 2014

IJS

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“…Billi et al, 2003). In particular, Micarelli et al (2003Micarelli et al ( , 2006aMicarelli et al ( , 2006b recognised distinct weakly deformed (WDDZ) and intensely deformed (IDDZ) damage zone domains, based on the observed variations of fracture density in fault zones hosted in lowporosity carbonates. According to their observations, the IDDZ is located closer to the fault…”

Section: Introductionmentioning

confidence: 99%

Fault and fracture patterns in low porosity chalk and their potential influence on sub-surface fluid flow—A case study from Flamborough Head, UK

et al. 2016

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Structural properties of rift-related normal faults: the case study of the Gulf of Corinth, Greece

Cited by 97 publications

References 45 publications

Shear banding in drained and undrained triaxial tests on a saturated sandstone: Porosity and permeability evolution

Shear banding in drained and undrained triaxial tests on a saturated sandstone: Porosity and permeability evolution

Bacterial migration through low-permeability fault zones in compartmentalised aquifer systems: a case study in Southern Italy

Fault and fracture patterns in low porosity chalk and their potential influence on sub-surface fluid flow—A case study from Flamborough Head, UK

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