10.5880/fidgeo.2018.023 Zwaan, Frank Frank Zwaan 0000-0001-8226-2132 Institut für Geologie, Universität Bern, Switzerland Schreurs, Guido Guido Schreurs 0000-0003-1212-4978 Institut für Geologie, Universität Bern, Switzerland Ritter, Malte Malte Ritter 0000-0003-1212-4978 GFZ German Research Centre for Geosciences, Potsdam, Germany Santimano, Tasca Tasca Santimano 0000-0002-8080-9154 GFZ German Research Centre for Geosciences, Potsdam, Germany Rosenau, Matthias Matthias Rosenau 0000-0003-1134-5381 GFZ German Research Centre for Geosciences, Potsdam, Germany GFZ Data Services 2018 analogue models of geologic processes EPOS multi-scale Laboratories property data of analogue modelling materials software tools deformation > ductile flow Density earth interior setting > crust setting > continental-crustal setting EARTH SCIENCE > SOLID EARTH > TECTONICS EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > CALIBRATION/VALIDATION Rheometer Sand > Corundum Sand Silicon/Silly putty/PDMS Viscosity Tectonic Modelling Laboratory at the Institute for Geological Sciences (TecLab Bern, Switzerland) dd35a3d4b656f3c9bb0d88fe2ff654a2 Institute of Geological Sciences of the University of Bern, Switzerland HelTec - Helmholtz Laboratory for Tectonic Modelling (GFZ Potsdam, Germany) 9ba34c109b827b177aab36e0266b1643 GFZ German Research Centre for Geosciences, Potsdam, Germany Rosenau, Matthias GFZ German Research Centre for Geosciences, Potsdam, Germany Dataset 10.1016/j.tecto.2016.02.036 10.1190/INT-2016-0063.1 10.1016/j.gloplacha.2017.11.002 http://www.mate.tue.nl/~wyss/softwiki/doku.php?id=equipment:antonpaar501-rheometer 10.1016/j.jsg.2006.05.004 10.1016/j.tecto.2015.11.028 10.5880/GFZ.4.1.2016.001 1 CC BY 4.0 This dataset provides rheometric data of silicone (Polydimethylsiloxane, PDMS SGM36)-corundum sand mixtures used for analogue modelling in Zwaan et al. (2016, 2017), Zwaan and Schreurs (2017) and in the Tectonic Modelling Lab of the Institute of Geological Sciences at the University of Bern (CH). The PDMS is produced by Dow Corning and its characteristics have been described by e.g. Rudolf et al. (2016a,b). The corundum sand (Normalkorund Braun 95.5% F120 by Carlo Bernasconi AG: https://www.carloag.ch/shop/catalog/product/view/id/643), has a grainsize of 0.088-0.125 mm and a specific density of 3.96 g cm^-3. Further rheological characteristics are described by Panien et al. (2006). The density of the tested materials ranges between 1 (pure PDMS) and 1.6 g cm^-3 (increasing corundum sand content in mixture). The material samples have been analysed in the Helmholtz Laboratory for Tectonic Modelling (HelTec) at GFZ German Research Centre for Geosciences in Potsdam using an Anton Paar Physica MCR 301 rheometer in a plate-plate configuration at room temperature. Rotational (controlled shear rate) tests with shear rates varying from 10^-4 to 10^-1 s^-1 were performed.


According to our rheometric analysis, the material is quasi Newtonian at strain rates below 10^-3*s^-1 and weakly shear rate thinning above. Viscosity and stress exponent increase systematically with density from ~4*10^4 to ~1*10^5 Pa*s and from 1.06 to 1.10, respectively. A first application of the materials tested can be found in Zwaan et al. (2016). Detailed information about the data, methodology and a list of files and formats is given in the "data description" and "list of files" that are included in the zip folder and also available via the DOI landing page.