Mechanical analysis of fault slip data: Implications for paleostress analysis

Kaven, J. Ole; Maerten, Frantz; Pollard, David D.

doi:10.1016/j.jsg.2010.12.004

Cited by 51 publications

(29 citation statements)

References 78 publications

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“…Pollard et al (1993) and Willemse et al (1996) have shown that both the geometry of the periphery (rectangular or elliptical) and the length-to-width ratio of an isolated fault have an influence on the slip distribution and magnitude. Similarly, Kaven et al (2011) have shown that a single isolated corrugated fault can also have highly perturbed slip distribution and magnitude. This is attributed to what we call the self-mechanical interaction.…”

Section: Fault Geometrymentioning

confidence: 88%

“…More recently, Kaven et al (2011) pointed out that even if the stress inversion results are similar, WB type inversions perform poorly for limited ranges of slickenline orientations when compared to their proposed mechanical stress inversion method. Furthermore, Lisle (2013) showed from simple models, that any stress field anisotropy such as that arising from 3D fault geometry, can lead to a significant angular difference between the directions of maximum shear stress and the slip direction predicted by the WB assumptions.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Following the earlier studies on the influence of fault geometry on the misfit angle between slip vectors and resolved shear traction vectors (Dupin et al, 1993;Pollard et al, 1993;Maerten, 2000;Pascal, 2002;Kaven et al, 2011;Resor and Meer, 2009;Lisle, 2013), planar faults, intersected faults and sinusoidal faults have been investigated.…”

Section: Fault Geometrymentioning

confidence: 99%

See 2 more Smart Citations

Paleostress inversion: A multi-parametric geomechanical evaluation of the Wallace–Bott assumptions

Lejri

Maerten

et al. 2015

Tectonophysics

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Section: Fault Geometrymentioning

confidence: 88%

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Fault Geometrymentioning

confidence: 99%

See 1 more Smart Citation

Paleostress inversion: A multi-parametric geomechanical evaluation of the Wallace–Bott assumptions

Lejri

Maerten

et al. 2015

Tectonophysics

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“…The slip direction on faults is often used to determine the orientation of the regional principal stresses [e.g., Angelier et al , 1985; Becker et al , 2005; Kaven et al , 2011; Yang and Hauksson , 2011]. However, analysis of slip vectors on modeled corrugated fault surfaces suggests that that the slip direction on a corrugated fault does not uniquely define a loading direction (Figure 15).…”

Section: Discussionmentioning

confidence: 99%

Mechanics, slip behavior, and seismic potential of corrugated dip‐slip faults

Marshall¹,

Morris²

2012

J. Geophys. Res.

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[1] To better understand the mechanics and seismic potential of nonplanar fault surfaces, we present results from a suite of numerical models of faults with sinusoidal corrugations in the downdip direction. Systematic variations in corrugation wavelength, amplitude, and loading angle are introduced to determine the effects on slip behavior and seismic moment release. We find that corrugated faults, in general, slip less than planar faults. Changes in slip behavior are nearly scale-independent and are dominantly controlled by the amplitude/wavelength of corrugations. Model results suggest that obliquely loaded corrugated faults accumulate less strike slip than a planar fault with the same tip line dimensions and average orientation. This result implies that slip direction is not a reliable indicator of regional stress direction and may at least partially explain repeated, nearly pure dip-slip coseismic events at oblique plate boundaries. Though the scalar seismic moment release is always less for corrugated fault surfaces due to a greater reduction in slip compared to increased surface area, for geologically reasonable corrugation geometries, changes in total scalar moment release are not significantly different than planar faults. Techniques that utilize highly simplified fault geometries may therefore accurately reproduce scalar moment release but will nonetheless incorrectly predict coseismic slip magnitudes and distributions, as well as regional stress orientations.Citation: Marshall, S. T., and A. C. Morris (2012), Mechanics, slip behavior, and seismic potential of corrugated dip-slip faults,

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“…To fully understand the applicability of paleostress technique in risk assessment, it is necessary to analyze ancient stress regimes in the context of their role as potential precursory agents. Kayen et al (2011) noted that stress analysis is a useful and popular tool for structural and seismological elements. Kaymakci (2006) reported that the state of stress in rocks is generally anisotropic and is defined by stress ellipsoid axes, which characterize the magnitudes of the principal stresses.…”

Section: Introductionmentioning

confidence: 99%

Application of paleostress analysis for the identification of potential instability precursors within the Benue Trough Nigeria

Igwe

Okonkwo

2016

Geoenviron Disasters

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Background: Structures such as faults, joints and fractures of diverse patterns have acted as precursors of several slope instability cases within the Benue Trough Nigeria. In some cases, the structures by their nature weakened and also created avenues that streams took advantage to further destabilize the rock slopes. In other cases, structure orientation played significant roles in the mobility and eventual runout distance of debris flow and avalanches in the region. Detailed field-based structural, fracture and paleostress analyses were therefore carried out to determine the fractural patterns that correlate to reported instability and landslide cases in the region; and to produce models that reveal areas with heightened risk.

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Mechanical analysis of fault slip data: Implications for paleostress analysis

Cited by 51 publications

References 78 publications

Paleostress inversion: A multi-parametric geomechanical evaluation of the Wallace–Bott assumptions

Paleostress inversion: A multi-parametric geomechanical evaluation of the Wallace–Bott assumptions

Mechanics, slip behavior, and seismic potential of corrugated dip‐slip faults

Application of paleostress analysis for the identification of potential instability precursors within the Benue Trough Nigeria

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