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Fault geometry and its relationship with seismicity in the Xianshuihe fault zone
Physics and Chemistry of the Earth, 1990Abstract The Xianshuihe fault zone is an active fault zone noticeable by its rather high seismicity in West China. The present study will discuss segmentation of fault geometry and seismicity, the pattern of earthquake distribution and migration, physical conditions for seismogenesis, the relationship between fault length and earthquake magnitude as ...
null Ma Jin +2 more
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Geological Society of America Bulletin, 1909
Introduction Two years ago Mr F. L. Ransome called attention to the confusion existing in the nomenclature of faults and noted that in the case of diagonal faults it is frequently impossible to say whether we are dealing with a normal or a reversed fault, or to determine whether a line at right angles to the fault-plane has been shortened or lengthened.
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Introduction Two years ago Mr F. L. Ransome called attention to the confusion existing in the nomenclature of faults and noted that in the case of diagonal faults it is frequently impossible to say whether we are dealing with a normal or a reversed fault, or to determine whether a line at right angles to the fault-plane has been shortened or lengthened.
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Quantifying fault breccia geometry: Dent Fault, NW England
Journal of Structural Geology, 2008A geometric classification of fault breccia borrowed from the cave-collapse literature has been suggested as an alternative to available genetic classifications. Here, image analysis is used to explore geometric discrimination between the visually assigned classes of crackle breccia, mosaic breccia and chaotic breccia, using samples from the well ...
K. Mort, N.H. Woodcock
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On the geometry of an earthquake fault system
Physics of the Earth and Planetary Interiors, 1992Abstract Invariants of a two-point correlation function of the seismic moment tensor were used to investigate an earthquake fault system. The geometry of the fault system is significantly different from the standard model of an earthquake fault, i.e. coherent rupture on a planar surface.
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Mechanical controls on fault geometry
Journal of Structural Geology, 1999Abstract Faults inevitably become non-planar because of how they grow and how they are affected during slip by mechanical heterogeneities inherent in the earth. Some faults acquire a non-planar geometry because of non-uniform tectonic deformation or because they grow by the linkage of originally discontinuous structures. However, even faults that are
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Additional note on the geometry of faults
Geological Society of America Bulletin, 1910In a recent paper simple projective methods were given for determining the displacement of a stratum at a fault.[2][1] It was pointed out that any displacement of a stratum could be represented by a linear displacement and a simple rotation. The rotation was determined by rotating the stratum first around a horizontal axis until it was horizontal, and ...
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Modelling of fault-related sedimentary geometries
55th EAEG Meeting, 1993Modelling of fault-related sedimentary geometries bas been carried out with the principal objective of understanding and predicting hangingwall traps. The models are consistent with a number of Palaeozoic, Mesozoic and Cenozoic examples from a range of basins throughout Northwest Europe. These basins include the Celtic Sea, Porcupine, Central Irish Sea,
J. J. Walsh +6 more
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Geometry and origin of a polygonal fault system
Journal of the Geological Society, 2000A fault array in South Australia, interpreted from a 3D onshore seismic survey, shows fault traces on the lowermost mapped horizon of a shale‐dominated sequence which outline polygonal cells averaging 1.4 km in diameter. The cell boundaries coincide approximately with the downward terminations and near convergence of conjugate pairs of ...
J. WATTERSON +4 more
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Normal fault geometry and fault reactivation in tectonic inversion experiments
Geological Society, London, Special Publications, 1991Abstract Scaled physical models of extensional structures associated with fault reactivation were achieved in sand by superimposing extensional tectonics on thrust faults created during prior episodes of horizontal shortening. The extension produced three distinct responses: selective reactivation of pre-existing thrusts, favouring the ...
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Fault geometry and architecture, an integrated study
2021<p>Understanding fault geometry and processes of faulting are important research areas for many applications such as petroleum exploration and production; geothermal energy managements; hydrogeology; waste disposal and CO2 storage underground; earthquake seismology and geological hazard studies.
Anita Torabi, Behzad Alaei, Audun Libak
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