Do cataclastic deformation bands form parallel to lines of no finite elongation (LNFE) or zero extension directions?

Imber, Jonathan B.; Perry, Tom; Jones, Richard R.; Wightman, Ruth

doi:10.1016/j.jsg.2012.09.004

Cited by 3 publications

(4 citation statements)

References 46 publications

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“…In some cases, the strain analysis studies are possible with application of some structural elements such as foliations and lineations (Talbot 1970;Imber et al 2012). Talbot 1970, with application of stereographic analyses and using distribution pattern of foliation and lineation, determined the strain ellipsoid shape, geometry of surfaces of no finite longitudinal strain, and extension and shortening domains.…”

Section: Methodsmentioning

confidence: 99%

“…Talbot 1970, with application of stereographic analyses and using distribution pattern of foliation and lineation, determined the strain ellipsoid shape, geometry of surfaces of no finite longitudinal strain, and extension and shortening domains. Imber et al 2012, with application of the amounts of strain ratio and geometry of surfaces of no finite longitudinal strain, offered some nomograms. Based on these graphical functions with application of the angular relations of surfaces of no finite longitudinal strain on the principal planes of strain ellipsoid (Φ XY , Φ XZ , Φ YZ ), it can be determined the amounts of strain ratio (R XZ , R YZ , and R XY ).…”

Section: Methodsmentioning

confidence: 99%

“…In this research, with assumption of homogeneous strain with minimal changes in the volume (isochoric) and compliance of foliation and lineation, respectively, with XY plane and X-axis of strain ellipsoid, the geometry of surfaces of no finite longitudinal strain and domains of extension and shortening of strain ellipsoid was determined. Finally, using angular relation of surfaces of no finite longitudinal strain in the principal planes of strain ellipsoid and application of R/2Φ nomogram (Imber et al 2012), the amounts of strain ratio was determined in the principal planes of strain ellipsoid. Also, in this paper, use of applied nomorgams, parameters such as kinematic vorticity number, and the amount of shortening were determined in the study area.…”

Section: Methodsmentioning

confidence: 99%

“…Using the graphical functions of Imber et al (2012), the amounts of strain ration in the XZ and XY principal planes of strain ellipsoid were estimated (Fig. 7).…”

Section: Strain Analysismentioning

confidence: 99%

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Strain analysis using structural elements and geometry of surfaces of no finite longitudinal strain

Samani

2015

Arab J Geosci

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In this research, using structural elements and the geometry of surfaces of no finite longitudinal strain, crustal shortening and strain analyses have been carried out between two thrust faults in the Khon-Khoreh area in the north of Dehbid. The direction of the principal axes of the finite strain ellipsoid was defined using stereographic analyses of pole of foliation and lineation. With separation of shortening and longitudinal strain domains, the geometry of surfaces of no finite longitudinal strain was determined in 3D. The results of stereographic analyses and angular relations of surfaces of no finite longitudinal strain on the XZ and XY principal planes of strain ellipsoid show the amounts of 2Φ angle as: 48°< 2Φ XZ <58°and 75°<2Φ XY <82°. Results show three axial prolate strain ellipsoids in the study area. Using calculated angles and R/2Φ nomogram, the amount of finite strain in the principal planes of strain ellipsoid (R XZ and R XY ) and natural logarithmic strain (ε) was determined in the study area. With application of kinematic vorticity analysis, the amount of crustal shortening was determined to be about 30 to 60 % in the study area. Finally, it reveals that the amounts of finite strain ratios, natural logarithmic strain, and increment in the prolate shapes of strain ellipsoid increased with decrease in distance from the thrust faults.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…Using the graphical functions of Imber et al (2012), the amounts of strain ration in the XZ and XY principal planes of strain ellipsoid were estimated (Fig. 7).…”

Section: Strain Analysismentioning

confidence: 99%

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Strain analysis using structural elements and geometry of surfaces of no finite longitudinal strain

Samani

2015

Arab J Geosci

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Shear-enhanced compaction in dilating granular materials

Klimczak

Schultz

2013

International Journal of Rock Mechanics and Mining Sciences

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Influence of deformation-band fault damage zone on reservoir performance

Tveranger

Fachri³

2017

Interpretation

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Access to 3D descriptions of fault zone architectures and recent development of modeling techniques allowing explicit rendering of these features in reservoir models, provide a new tool for detailed implementation of fault zone properties. Our aim is to assess how explicit rendering of fault zone architecture and properties affects performance of fluid flow simulation models. The test models use a fault with a maximum 100 m displacement and a fault damage zone with petrophysical heterogeneity caused by the presence of deformation bands. The distribution pattern of deformation bands in fault damage zones is well-documented, which allows generation of realistic models. A multiscale modeling workflow is applied to incorporate these features into reservoir models. Model input parameters were modulated to provide a range of property distributions, and the interplay between the modeling parameters and reservoir performance was analyzed. The influence of deformation-band damage zone on reservoir performance in the presence of different fault core transmissibility-multipliers was investigated. Two configurations are considered: one in which the fault terminates inside the model domain, representing a case in which the fluid can flow around the fault, and one in which the fault dissects the entire model domain, representing a case in which the fluid is forced to cross the fault. We observed that the impact of deformation-band fault damage zone on reservoir performance changes when the fault core transmissibility multiplier is changed. Reservoir performance is insensitive to changing damage zone heterogeneity in a configuration in which flow can move around the fault. Where flow cannot bypass the fault, the influence of fault damage zone heterogeneity on reservoir performance is significant even when the fault core transmissibility multiplier is low.

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Do cataclastic deformation bands form parallel to lines of no finite elongation (LNFE) or zero extension directions?

Cited by 3 publications

References 46 publications

Strain analysis using structural elements and geometry of surfaces of no finite longitudinal strain

Strain analysis using structural elements and geometry of surfaces of no finite longitudinal strain

Shear-enhanced compaction in dilating granular materials

Influence of deformation-band fault damage zone on reservoir performance

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