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Showing 1 to 10 of 10 for “"fault rocks"”.
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Fault rock evolution and fluid flow in sedimentary basins
… studies have been undertaken in two extensional fault regimes associated with post-Caledonian basin-forming events in northern Scotland. A combination of detailed mapping and microstructural analysis has revealed the deformation processes and mechanisms involved in fault rock evolution and fluid …
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Faults as episodic conduits for hydrocarbons, CO2 and groundwater in sandstones
… porous media. In particular, predicting complex fault architecture at depth, currently relies on deterministic algorithms, that do not take account of these dynamic coupling. For instance, creation of permeability due to fracturing may permit fluid flow to enter a fault zone, resulting in …
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Incorporation of fault rock properties into production simulation models
… incorporating the multiphase flow properties of faults into production simulation models. Second, to investigate methodologies to incorporate the multiphase flow properties of faults into production simulation models. Tests using simple simulation models suggest that in some situations it is not …
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Clay mineral formation and fluid-rock interaction in fractured crystalline rocks of the Rhine rift system : case studies from the Soultz-sous-Forêts granite (France) and the Schauenburg Fault (Germany)
… the fluid-alteration history of fractured and faulted crystalline granitic basement in the Rhine rift system, based on the analytical investigation of clay mineral assemblages. It evaluates the argillite mineralizations along faults and fracture zones at key tectonic positions in relation to …
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Study of fault gouge influences on mechanical and frictional behavior of granular shear zones using the distinct element method
Studies of fault gouge and its role in shear zone deformation are the key to understanding the mechanics of earthquakes and fault zone evolution. With the advantage of exploring the micromechanical process of gouge deformation in "real time", the combination of the Distinct Element Method (DEM) and …
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Faulting, sedimentation and fluid flow at the basin margin : the north Solway fault
Faults exert control over the formation of basins and are geometrically complex 3Dstructures. Several industries rely on characterisation of the subsurface and faults are an important component of subsurface models. Faults are poorly constrained in subsurface data sets and by necessity are …
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Controls on the diversity of the fault slip styles at the brittle-ductile transition: examples from the Cape Fold Belt, Nuy Valley, South Africa
… brittle and viscous deformation. Complex fault zones exhumed to the surface may preserve evidence that can explain the mechanics and the complex slip behaviour of faults. Fault rocks response to applied shear stress is affected by environmental conditions during deformation (such as …
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Multi-timescale mechanics of an active low-angle normal fault
Detachment faults dipping < 30° commonly accrue 10’s of kms of offset and accommodate a large portion of crustal extension in moderately-to-highly extended regions. Slip on these high-offset low-angle normal faults remains perplexing due to their apparent misorientation relative to Andersonian …
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Characterization of Fluids Associated with Vein-type Uranium Mineralization in the Beaverlodge Uranium District, Northern Saskatchewan: Field, Petrographic, Fluid Inclusion and C-O Isotope Studies
… Archean to Proterozoic granitic and metamorphic rocks. Most of the Beaverlodge deposits are spatially related to major structures, and hosted by granitic rocks of various ages (and albitite derived from them) and by ca. 2.33 Ga Murmac Bay group amphibolite, both of which are unconformably …
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Brittle-viscous deformation cycles at the base of the seismogenic zone in the continental crust
… at different scales of a brittle-viscous fault zone active at the base of the seismogenic crust. Object of analysis are samples from the sinistral strike-slip fault zone BFZ045 from Olkiluoto (SW Finland), located at the site of a deep geological repository for nuclear waste. Combined …