2009
DOI: 10.1111/j.1468-8123.2008.00219.x
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Factors affecting fluid flow in strike–slip fault systems: coupled deformation and fluid flow modelling with application to the western Mount Isa Inlier, Australia

Abstract: Deformation and focused fluid flow within a mineralized system are critical in the genesis of hydrothermal ore deposits. Dilation and integrated fluid flux due to coupled deformation and fluid flow in simple strike-slip fault geometries were examined using finite difference analysis in three dimensions. A series of generic fault bend and fault jog geometries consistent with those seen in the western Mount Isa Inlier were modelled in order to understand how fault geometry parameters influence the dilation and i… Show more

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Cited by 14 publications
(8 citation statements)
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“…The explicit finite difference code, FLAC 3D (Fast Lagrangian Analysis of Continua in 3‐D) [ Itasca Consulting Group , ], was employed to model hydromechanical processes occurring in the fault studied here. FLAC 3D allows simulation of the interactions between deformation and fluid flow in porous media and has been already used successfully in the modeling of faulting in different geological and tectonic contexts [ Sheldon and Ord , ; Zhang et al ., ; Ford et al ., ; Cappa , , ]. Although the model allows elastic‐plastic deformation to be taken into account, only the elastic deformation ( ε e ij ) is considered here since the fault is not in a critical state inducing plastic deformation.…”
Section: Hydromechanical Modeling Combining Field Geological Analysismentioning
confidence: 99%
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“…The explicit finite difference code, FLAC 3D (Fast Lagrangian Analysis of Continua in 3‐D) [ Itasca Consulting Group , ], was employed to model hydromechanical processes occurring in the fault studied here. FLAC 3D allows simulation of the interactions between deformation and fluid flow in porous media and has been already used successfully in the modeling of faulting in different geological and tectonic contexts [ Sheldon and Ord , ; Zhang et al ., ; Ford et al ., ; Cappa , , ]. Although the model allows elastic‐plastic deformation to be taken into account, only the elastic deformation ( ε e ij ) is considered here since the fault is not in a critical state inducing plastic deformation.…”
Section: Hydromechanical Modeling Combining Field Geological Analysismentioning
confidence: 99%
“…Despite the fact that the permeability of core k h from the damage zone is 3 orders of magnitude lower than the permeability of core k H from the gouge zone, the fluid-flow path length perpendicular to the fault will be much less than that parallel to the fault. In the case of a 0.5 m thick fault core zone, as measured in the field, fluid flow will occur predominantly in the direction perpendicular to the fault zone, provided that the fault is longer than 500 m. Given the fact that the 2003-2004 Ubaye swarm is aligned along a 9 km long rupture zone [Jenatton et al, 2007], Journal of Geophysical Research: Solid Earth 10.1002/2014JB011759 FLAC 3D allows simulation of the interactions between deformation and fluid flow in porous media and has been already used successfully in the modeling of faulting in different geological and tectonic contexts [Sheldon and Ord, 2005;Zhang et al, 2008;Ford et al, 2009;Cappa, 2009Cappa, , 2011. Although the model allows elastic-plastic deformation to be taken into account, only the elastic deformation (ε e ij ) is considered here since the fault is not in a critical state inducing plastic deformation.…”
Section: Microstructural Influences On Permeability and Elastic Wave mentioning
confidence: 99%
“…Weinberg et al, 2004) are commonly regarded as particularly favorable for mineralization, but fracturing and permeability are also created at contractional stepovers and bends (e.g. Ford et al, 2009). Deformation zone roughness or non-planarity can therefore be an important aspect of prospectivity.…”
Section: Kinematicsmentioning
confidence: 99%
“…8a-b) to constrain the prospectivity to a specific distance beyond which the influence is considered negligible. Fault bends can also increase fluid flow in the system and act as depositional zones (Ford et al, 2009;Occhipinti et al, 2016). The 'faults bends' map generated by kernel density of point features representing changes in the orientation of faults (Fig.…”
Section: Depositional Sitesmentioning
confidence: 99%