Time for anisotropy: The significance of mechanical anisotropy for the development of deformation structures

Hao Ran, Tamara de Riese, Maria-Gema Llorens, Melanie Finch, Lynn A. Evans, Enrique Gomez Rivas, Albert Griera, Mark W. Jessell, Ricardo A. Lebensohn, Sandra Piazolo, Paul D. Bons

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)
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The forty-year history of the Journal of Structural Geology has recorded an enormous increase in the description, interpretation and modelling of deformation structures. Amongst factors that control deformation and the resulting structures, mechanical anisotropy has proven difficult to tackle. Using a Fast Fourier Transform-based numerical solver for viscoplastic deformation of crystalline materials, we illustrate how mechanical anisotropy has a profound effect on developing structures, such as crenulation cleavages, porphyroclast geometry and the initiation of shear bands and shear zones.
Original languageEnglish
Pages (from-to)41-47
Number of pages7
JournalJournal of Structural Geology
Early online date20 May 2018
Publication statusPublished - Aug 2019

Bibliographical note

HR acknowledges financial support by the China Scholarship Council (CSC; grant nr. 201506400014). EGR acknowledges the support of the Beatriu de Pinós programme of the Government of Catalonia's Secretariat for Universities and Research of the Department of Economy and Knowledge (2016 BP 00208). We thank Bruce Hobbs and an anonymous reviewer for their suggestions to improve this article.


  • Mechanical anisotropy
  • porphyroclasts
  • strain localisation
  • folds
  • shear zones
  • Shear zones
  • Porphyroclasts
  • Folds
  • Strain localisation


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