A parametric method to model {3D} displacements around faults with volumetric vector fields

Gautier Laurent and Guillaume Caumon and Antoine Bouziat and Mark Jessell. ( 2013 )
in: Tectonophysics, 590 (83 -- 93)

Abstract

this paper presents a 3D parametric fault representation for modeling the displacement field associated with faults in accordance with their geometry. The displacements are modeled in a canonical fault space where the near-field displacement is summed up into a small set of parameters consisting of a maximum displacement amplitude and the profiles of attenuation in the surrounding space. The particular geometry and the orientation of the slip of each fault is then taken into account by mapping the actual fault onto its canonical representation. This mapping is obtained with the help of a curvilinear frame aligned both on the fault surface and slip direction. Such a model will help in including more geological concepts in quantitative subsurface models during the 3D structural modeling task. Its applicability is demonstrated in the frame of forward modeling and stochastic sequential fault simulation and the results of our model are compared to observations of natural objects available in the literature.

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BibTeX Reference

@ARTICLE{,
    author = { Laurent, Gautier and Caumon, Guillaume and Bouziat, Antoine and Jessell, Mark },
     title = { A parametric method to model {3D} displacements around faults with volumetric vector fields },
     month = { "apr" },
   journal = { Tectonophysics },
    volume = { 590 },
      year = { 2013 },
     pages = { 83 -- 93 },
      issn = { 0040-1951 },
       doi = { 10.1016/j.tecto.2013.01.015 },
  abstract = { this paper presents a 3D parametric fault representation for modeling the displacement
field associated with faults in accordance with their geometry. The displacements are modeled in a
canonical fault space where the near-field displacement is summed up into a small set of parameters
consisting of a maximum displacement amplitude and the profiles of attenuation in the surrounding
space. The particular geometry and the orientation of the slip of each fault is then taken into account
by mapping the actual fault onto its canonical representation. This mapping is obtained with the help
of a curvilinear frame aligned both on the fault surface and slip direction.
Such a model will help in including more geological concepts in quantitative subsurface models
during the 3D structural modeling task. Its applicability is demonstrated in the frame of forward
modeling and stochastic sequential fault simulation and the results of our model are compared to
observations of natural objects available in the literature. }
}