Anisotropy of fractal dimension of normal faults in northern Rocky Mountains: Implications for the kinematics of Cenozoic extension and Yellowstone hotspot's thermal expansion

Davarpanah, Armita; Babaie, Hassan A.

doi:10.1016/j.tecto.2013.08.031

Cited by 8 publications

(2 citation statements)

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“…This observation has led to a well‐established scaling relationship that is the basis for most current models of fault growth, whereby there is a simultaneous increase in displacement and fault length as a result of repeated earthquakes (Figure a [ Gillespie et al , ]). Many studies utilize this relationship to make inferences about fault growth based on static length and/or displacement measurements [ Gillespie et al , ; Densmore et al , ; Polit et al , ; Barnes et al , ; Davarpanah and Babaie , ; Nahm et al , ]. Unfortunately, due to a paucity of observations on the lateral growth of faults along strike, our understanding of fault‐system evolution beyond this idea is stalled [ Morewood and Roberts , ].…”

Section: Introductionmentioning

confidence: 99%

Testing fault growth models with low‐temperature thermochronology in the northwest Basin and Range, USA

2016

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Common fault growth models diverge in predicting how faults accumulate displacement and lengthen through time. A paucity of field‐based data documenting the lateral component of fault growth hinders our ability to test these models and fully understand how natural fault systems evolve. Here we outline a framework for using apatite (U‐Th)/He thermochronology (AHe) to quantify the along‐strike growth of faults. To test our framework, we first use a transect in the normal fault‐bounded Jackson Mountains in the Nevada Basin and Range Province, then apply the new framework to the adjacent Pine Forest Range. We combine new and existing cross sections with 18 new and 16 existing AHe cooling ages to determine the spatiotemporal variability in footwall exhumation and evaluate models for fault growth. Three age‐elevation transects in the Pine Forest Range show that rapid exhumation began along the range‐front fault between approximately 15 and 11 Ma at rates of 0.2–0.4 km/Myr, ultimately exhuming approximately 1.5–5 km. The ages of rapid exhumation identified at each transect lie within data uncertainty, indicating concomitant onset of faulting along strike. We show that even in the case of growth by fault‐segment linkage, the fault would achieve its modern length within 3–4 Myr of onset. Comparison with the Jackson Mountains highlights the inadequacies of spatially limited sampling. A constant fault‐length growth model is the best explanation for our thermochronology results. We advocate that low‐temperature thermochronology can be further utilized to better understand and quantify fault growth with broader implications for seismic hazard assessments and the coevolution of faulting and topography.

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Section: Introductionmentioning

confidence: 99%

Testing fault growth models with low‐temperature thermochronology in the northwest Basin and Range, USA

2016

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“…The tectonic fractures, faults and other fractures exhibit statistically significant self-similarity in terms of geometric morphology, tectonic evolution and genetic dynamics. The selfsimilarity of fractures is comprehensively quantified and characterized by the information dimension D. Closely related to the index of fault development, the fault D value can be used as a comprehensive index of the fault number, scale, pattern, horizontal length and distribution heterogeneity and can be calculated as follows (Matsumoto et al 1992;Davarpanah and Babaie 2013):…”

Section: Principle Of the Self-similarity Calculationmentioning

confidence: 99%

Quantitative multiparameter prediction of fault-related fractures: a case study of the second member of the Funing Formation in the Jinhu Sag, Subei Basin

et al. 2018

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In this paper, the analysis of faults with different scales and orientations reveals that the distribution of fractures always develops toward a higher degree of similarity with faults, and a method for calculating the multiscale areal fracture density is proposed using fault-fracture self-similarity theory. Based on the fracture parameters observed in cores and thin sections, the initial apertures of multiscale fractures are determined using the constraint method with a skewed distribution. Through calculations and statistical analyses of in situ stresses in combination with physical experiments on rocks, a numerical geomechanical model of the in situ stress field is established. The fracture opening ability under the in situ stress field is subsequently analyzed. Combining the fracture aperture data and areal fracture density at different scales, a calculation model is proposed for the prediction of multiscale and multiperiod fracture parameters, including the fracture porosity, the magnitude and direction of maximum permeability and the flow conductivity. Finally, based on the relationships among fracture aperture, density, and the relative values of fracture porosity and permeability, a fracture development pattern is determined.

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Spatiotemporal patterns of sediment transport rate and beach–ocean profile for multi-hazard risk management

Khorram

Ergil

2017

Nat Hazards

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Anisotropy of fractal dimension of normal faults in northern Rocky Mountains: Implications for the kinematics of Cenozoic extension and Yellowstone hotspot's thermal expansion

Cited by 8 publications

References 107 publications

Testing fault growth models with low‐temperature thermochronology in the northwest Basin and Range, USA

Testing fault growth models with low‐temperature thermochronology in the northwest Basin and Range, USA

Quantitative multiparameter prediction of fault-related fractures: a case study of the second member of the Funing Formation in the Jinhu Sag, Subei Basin

Spatiotemporal patterns of sediment transport rate and beach–ocean profile for multi-hazard risk management

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