Digital image correlation data from analogue modelling experiments addressing orthogonal and rotational extension at the Tectonic Modelling Lab of the University of Bern (CH)

This data set includes the results of digital image correlation of ten brittle-viscous experiments on crustal extension and four benchmark experiments performed at the Tectonic Modelling Lab of the University of Bern (UB). The experiments demonstrate the differences in rift development in orthogonal versus rotation extension. Detailed descriptions of the experiments and monitoring techniques can be found in Zwaan et al. (2019) to which this data set is supplementary. Additional background information concerning the general modelling approach are available in Zwaan et al. (2016).. The data presented here consist of movies displaying digital image correlation (DIC) derived surface and internal displacement fields as well as profiles of the lateral cumulative surface displacements.

Digital photographs of the experimental surface and digital image cross section of the computed CT-scans were analyzed with DIC (Adam et al., 2005, 2013) techniques to quantify displacements in the image plane at high precision (<0.1 mm). DIC was undertaken with the software DaVis 8.0 (LaVision) applying 2D-DIC (FFT-legacy) multipass processing with a final interrogation window size of 32x32 (CT: 12x12) pixels and 50% (CT: 25%) overlap.

Additional Info

Field Value
Source http://doi.org/doi:10.5880/FIDGEO.2020.001
Author Zwaan, Frank (Dipartimento di Scienze della Terra, Università di Studi di Firenze, Florence, Italy), Schreurs, Guido (Institute of Geological Sciences, University of Bern, Switzerland), Schmid, Timothy (Institute of Geological Sciences, University of Bern, Switzerland), Warsitzka, Michael (GFZ German Research Centre for Geosciences, Potsdam, Germany), Rosenau, Matthias (GFZ German Research Centre for Geosciences, Potsdam, Germany)
Provided by GFZ Potzdam
Dataset contact Matthias Rosenau ( GFZ German Research Centre for Geosciences, Potsdam, Germany Lab manager rosen@gfz-potsdam.de http://https://www.gfz-potsdam.de/en/section/lithosphere-dynamics/infrastructure/heltec-helmholtz-laboratory-for-tectonic-modelling/ )
Is supplement to

1) Zwaan, Frank; Schreurs, Guido; Rosenau, Matthias (2019): Rift propagation in rotational versus orthogonal extension: Insights from 4D analogue models. Journal of Structural Geology. 10.1016/j.jsg.2019.103946

Publication date 2019-12-20
Publisher http://www.gfz-potsdam.de/
References

1) Adam, J., Klinkmüller, M., Schreurs, G., & Wieneke, B. (2013). Quantitative 3D strain analysis in analogue experiments simulating tectonic deformation: Integration of X-ray computed tomography and digital volume correlation techniques. Journal of Structural Geology, 55, 127–149.

2) Adam, J., Urai, J. L., Wieneke, B., Oncken, O., Pfeiffer, K., Kukowski, N., … Schmatz, J. (2005). Shear localisation and strain distribution during tectonic faulting—new insights from granular-flow experiments and high-resolution optical image correlation techniques. Journal of Structural Geology, 27(2), 283–301.

3) Zwaan, F., Schreurs, G., Naliboff, J., & Buiter, S. J. H. (2016). Insights into the effects of oblique extension on continental rift interaction from 3D analogue and numerical models. Tectonophysics, 693, 239–260.