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Fault Zones

Continuity, segmentation and faulting type of active fault zones of the 2016 Kumamoto earthquake inferred from analyses of a gravity gradient tensor

Continuity, segmentation and faulting type of active fault zones of the 2016 Kumamoto earthquake inferred from analyses of a gravity gradient tensor

... A structural boundary, where the density boundary is clear, is generally detected as a higher value of HD, a zero isoline of VD and/or a large, around 90°, TDX. The obtained HD (Fig. 4), VD (Fig. 5) and TDX (Fig. 6) ...

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On the geothermal potential of crustal fault zones: a case study from the Pontgibaud area (French Massif Central, France)

On the geothermal potential of crustal fault zones: a case study from the Pontgibaud area (French Massif Central, France)

... crustal fault zones ...Pontgibaud fault zone (French Massif Central) is suspected to host an active hydrothermal system at a depth of a few ...the fault zone and the permeability distribution ...

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Investigation of the fluid flow dynamic parameters for Newtonian and non Newtonian materials: an approach to understanding the fluid flow like structures within fault zones

Investigation of the fluid flow dynamic parameters for Newtonian and non Newtonian materials: an approach to understanding the fluid flow like structures within fault zones

... most previous simulations of earthquake dynamics con- sidered Newtonian materials. Recently, Ishak and Bachok (2009) extended fluid dynamics calculations to include non-Newtonian fluids, and similar studies were also ...

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Laboratory evidence of strength recovery of a healed fault: implications for a mechanism responsible for creating wide fault zones

Laboratory evidence of strength recovery of a healed fault: implications for a mechanism responsible for creating wide fault zones

... Fault zones consist of a high-strain fault core and a surrounding damage zone of highly fractured ...between fault zones and earthquake rupture evolution demands better understanding of ...

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In situ permeability of fault zones estimated by hydraulic tests and continuous groundwater pressure observations

In situ permeability of fault zones estimated by hydraulic tests and continuous groundwater pressure observations

... around fault zones plays an important role in fault hydrogeology and ...The fault zone is described as a single or multiple high-strain core (fault core) surrounded by a fractured ...

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Understanding seismic properties of fault zones

Understanding seismic properties of fault zones

... Internal zones of the Betic and Rif ranges (see figure ...mares fault systems (Keller et ...Murcia fault, notably the Lorca earthquakes of 1579 (MSK VII), 1674 (MSK VIII) (Martinez Solares and Mezcua ...

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Rn and CO 2geochemistry of soil gas across the active fault zones in the capital area of China

Rn and CO 2geochemistry of soil gas across the active fault zones in the capital area of China

... The soil gases were sampled along the measuring line at a distance of 20 m, and the distance between the two paral- lel measuring lines was 5 m. In Yanqing–Huailai Basin, 50 and 33 sampling sites of soil gases were ...

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High stresses stored in fault zones: example of the Nojima fault (Japan)

High stresses stored in fault zones: example of the Nojima fault (Japan)

... The significance of the second type of veins is not so clear. The morphology of the laumontite prisms and their orien- tation with respect to the vein walls confirm that they are mode I opening fractures and suggest ...

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Fault damage zone volume and initial salinity distribution determine  intensity of shallow aquifer salinisation in subsurface storage

Fault damage zone volume and initial salinity distribution determine intensity of shallow aquifer salinisation in subsurface storage

... entire fault zone (Fig. 1b). Fault-related parameters were assigned to the elements located at the respective vertical fault ...The fault element width of 250 m corresponds to the overall ...

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Numerical models for ground deformation and gravity changes during volcanic unrest: simulating the hydrothermal system dynamics of a restless caldera

Numerical models for ground deformation and gravity changes during volcanic unrest: simulating the hydrothermal system dynamics of a restless caldera

... complex fault networks which characterise collapse ...along fault planes is a purely 3-D phenomenon that can- not be represented by a 2-D ...transition zones would be attenuated, modifying the ...

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2019_Robinson.pdf

2019_Robinson.pdf

... these fault zones may be miniscule, but it is movement ...Boone fault could only have caused the earthquakes closest to ...active fault zones, the Swannanoa and Laurel Creek faults, ...

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Permeability and seismic velocity anisotropy across a ductile–brittle fault zone in crystalline rock

Permeability and seismic velocity anisotropy across a ductile–brittle fault zone in crystalline rock

... The shear zone selected for measurements of seismic ve- locities and permeability in this study preserves both ductile and overprinting brittle structures. The shear zone penetrated by the borehole at GTS is ...

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Geothermal Regime and Deep Temperatures of the Siberian Platform

Geothermal Regime and Deep Temperatures of the Siberian Platform

... The temperatures in the top of the Moti suite vary from 30 to 40°C on most of the southern Siberian platform and are more than 50°C only in the Prisayan-Yenisei syneclise and on the Bratsky swell (Angara dislocations ...

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Earthquake faulting in subduction zones: insights from fault rocks in accretionary prisms

Earthquake faulting in subduction zones: insights from fault rocks in accretionary prisms

... bearing fault zones can range in thickness from less than 1 m to tens of ...Pseudotachylyte-bearing fault zones in the exhumed accretionary complexes commonly con- tain quartz, calcite, ...

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Formation of Extensional Basin in Internal Part of the Zag Ros Orogeny in West of Sirjan, Iran

Formation of Extensional Basin in Internal Part of the Zag Ros Orogeny in West of Sirjan, Iran

... The most important structures of the area under the study are thrusts, geometry of which is similar to those of duplex structures. Structures with such geometric characteristics are usually formed within internal part of ...

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Hydraulic diffusivity of fault gouge zones and implications for thermal pressurization during seismic slip

Hydraulic diffusivity of fault gouge zones and implications for thermal pressurization during seismic slip

... zone’ fault rocks, notably cataclasites and zones of fractured protolith, in fault zones modelled by Caine et ...Nojima fault zone ...high fault-parallel permeability determined ...

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Study of Tectonic Activity in Young Eastern Alborz, Central Iran on the Basis of Alluvial Fans in the Shahrud Bastam Area

Study of Tectonic Activity in Young Eastern Alborz, Central Iran on the Basis of Alluvial Fans in the Shahrud Bastam Area

... mainly fault zones in north of Semnan and ...the fault is along the East-Northeast Meyamey steep slope to the south, and has a reverse mechanism with right turn slip com- ...boundary fault ...

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Investigating the controls on fault rock distribution in normal faulted shallow burial limestones, Malta, and the implications for fluid flow

Investigating the controls on fault rock distribution in normal faulted shallow burial limestones, Malta, and the implications for fluid flow

... Fault zones 821 with high porosity wall rock >15%, such as the SGF and the grain-dominated SQF segment, 822 exhibit a single localised slip surface with well-developed cataclasite veneer[r] ...

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Predicting Fire Outbreak Caused by Electrical Faults using Artificial Bee Colony Algorithm

Predicting Fire Outbreak Caused by Electrical Faults using Artificial Bee Colony Algorithm

... different fault resistance tested with a constant colony size of 20 (area of search) and max Cycles of 5 (maximum number of ...Bolted fault produces a very high current during the experiment, which will ...

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The 11 May 2011 earthquake at Lorca (SE Spain) viewed in a structural-tectonic context

The 11 May 2011 earthquake at Lorca (SE Spain) viewed in a structural-tectonic context

... Murcia fault nor the Cre- villente fault further northeast near Alicante ...Murcia fault indi- cate instead that at least part of the fault initiated as an exten- sional normal ...of ...

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