Articles | Volume 6, issue 3
https://doi.org/10.5194/se-6-1045-2015
https://doi.org/10.5194/se-6-1045-2015
Research article
 | 
02 Sep 2015
Research article |  | 02 Sep 2015

Pinch and swell structures: evidence for strain localisation by brittle–viscous behaviour in the middle crust

R. L. Gardner, S. Piazolo, and N. R. Daczko

Viewed

Total article views: 4,163 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
1,407 2,538 218 4,163 610 187 186
  • HTML: 1,407
  • PDF: 2,538
  • XML: 218
  • Total: 4,163
  • Supplement: 610
  • BibTeX: 187
  • EndNote: 186
Views and downloads (calculated since 24 Apr 2015)
Cumulative views and downloads (calculated since 24 Apr 2015)

Cited

Saved (final revised paper)

Saved (preprint)

Latest update: 25 Apr 2024
Download
Short summary
We find pinch and swell structures from a mid-crustal zone in Fiordland, NZ are initiated by brittle failure of the strongest layer. Modelling this strain localisation and viscous flow shows material softening is important and structures develop in both Newtonian and non-Newtonian flow, with strain localisation impacting both bedding rotation and structure formation. We also find strain localising behaviour combined with viscous flow is a viable alternative representation of the middle crust.