3D stereo DIC data from analogue models exploring fault growth and rift propagation in rotational rift systems

Schmid, Timothy; Rudolf, Michael; Schreurs, Guido; Adam, Jürgen; Rosenau, Matthias;

2021-12 || GFZ Data Services

This dataset includes surface 3D stereoscopic Digital Image Correlation (3D stereo DIC) images and videos of 9 analogue models on crustal scale rifting with a rotational component. Using a brittle-viscous two-layer setup, the experiments focused on near-surface fault growth, rift segment interaction and rift propagation. All experiments were performed at the Tectonic Modelling Laboratory of the University of Bern (UB).

All models consist of a two-layer brittle-viscous set up with a total thickness of 6 cm. Thickness variations in ductile and brittle layers are expressed by the ratio RBD = brittle layer thickness/ductile layer thickness, which ranges from RBD = 1 to RBD = 3. The model set up lies on top of a 5 cm thick foam base with a trapezoidal shape with a height of 900 mm and a pair of bases of 310 mm and 350 mm. The foam block is sliced into segments such that 7 interlayered 0.5 cm thick plexiglass bars prevent foam collapse under the model weight. The foam base is initially compressed between the longitudinal side walls and homogeneously expands during the rotational opening. Applied velocities refer to the divergence of the sidewalls at the outermost point (i.e., furthest away from the rotation axis) and decrease linearly towards the rotation axis. These velocities vary from 10 mm/h over a total run time of 4 h up to 40 mm/h over a total run time of one hour, resulting in identical total extension of ca 13% (given an initial model width of 31 cm) for all models. Detailed descriptions of the experiments as well as monitoring techniques can be found in Schmid et al. (2021).

Originally assigned keywords

Corresponding MSL vocabulary keywords

MSL enriched keywords

Originally assigned sub domains
  • analogue modelling of geologic processes
MSL enriched sub domains
  • analogue modelling of geologic processes
  • geochemistry
Source http://doi.org/10.5880/fidgeo.2021.048
Source publisher GFZ Data Services
DOI 10.5880/fidgeo.2021.048
License CC BY 4.0
Authors
  • Schmid, Timothy
  • 0000-0002-9477-9654
  • Institute of Geological Sciences, University of Bern, Switzerland
  • Rudolf, Michael
  • 0000-0002-5077-5221
  • GFZ German Research Centre for Geosciences, Potsdam, Germany
  • Schreurs, Guido
  • 0000-0002-4544-7514
  • Institute of Geological Sciences, University of Bern, Switzerland
  • Rosenau, Matthias
  • 0000-0003-1134-5381
  • GFZ German Research Centre for Geosciences, Potsdam, Germany
References
  • Adam, J., Urai, J. L., Wieneke, B., Oncken, O., Pfeiffer, K., Kukowski, N., Lohrmann, J., Hoth, S., van der Zee, W., & 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. https://doi.org/10.1016/j.jsg.2004.08.008
  • 10.1016/j.jsg.2004.08.008
  • Cites
  • Michail, M., Rudolf, M., Rosenau, M., Riva, A., Gianolla, P., & Coltorti, M. (2021). Digital image correlation data from analogue modelling experiments addressing magma emplacement along simple shear and transtensional fault zones [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.1.2021.004
  • 10.5880/GFZ.4.1.2021.004
  • Cites
  • Schmid, T. C., Schreurs, G., & Adam, J. (2022). Characteristics of continental rifting in rotational systems: New findings from spatiotemporal high resolution quantified crustal scale analogue models. Tectonophysics, 822, 229174. https://doi.org/10.1016/j.tecto.2021.229174
  • 10.1016/j.tecto.2021.229174
  • IsSupplementTo
Contact
  • Schmid, Timothy
  • Institute of Geological Sciences, University of Bern, Switzerland
  • timothy.schmid@geo.unibe.ch
Citation Schmid, T., Rudolf, M., Schreurs, G., Adam, J., & Rosenau, M. (2021). 3D stereo DIC data from analogue models exploring fault growth and rift propagation in rotational rift systems [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2021.048