Application of the creeping flow restoration method to an analogue model

in: 2021 RING Meeting, ASGA

Abstract

Structural restoration is commonly used to assess the deformation of geological structures and to reconstruct past basin geometries. For this, geomechanical restoration considers elastic motion and faults as frictionless contact surfaces. To bring more physical behavior and better handle large deformations, we build on a reverse time Stokes-based method with negative time step advection. We previously applied the method to a synthetic model including faults and non-flat topography, and build on the results to apply it to an analogue experiment model. We first restore the model using a flattening condition on the top surface, and show that reasonable restored geometries can be obtained. Using a free surface on the top of the model, we then assess the impact of the material properties on the restoration results.

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BibTeX Reference

@INPROCEEDINGS{SCHUHSENLIS_RM2021,
    author = { Schuh-senlis, Melchior and Caumon, Guillaume and Cupillard, Paul },
     title = { Application of the creeping flow restoration method to an analogue model },
 booktitle = { 2021 RING Meeting },
      year = { 2021 },
 publisher = { ASGA },
  abstract = { Structural restoration is commonly used to assess the deformation of geological structures and to reconstruct past basin geometries. For this, geomechanical restoration considers elastic motion and faults as frictionless contact surfaces. To bring more physical behavior and better handle large deformations, we build on a reverse time Stokes-based method with negative time step advection. We previously applied the method to a synthetic model including faults and non-flat topography, and build on the results to apply it to an analogue experiment model. We first restore the model using a flattening condition on the top surface, and show that reasonable restored geometries can be obtained. Using a free surface on the top of the model, we then assess the impact of the material properties on the restoration results. }
}