Ring-shear test data of quartz sand used for analogue experiments in the laboratory of the Institute of Geophysics of the Czech Academy of Science, Prague

10.5880/GFZ.4.1.2019.008 Warsitzka, Michael Michael Warsitzka 0000-0003-1774-5888 Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic Závada, Prokop Prokop Závada 0000-0003-1702-3770 Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic Pohlenz, Andre Andre Pohlenz GFZ German Research Centre for Geosciences, Potsdam, Germany Rosenau, Matthias Matthias Rosenau 0000-0003-1134-5381 GFZ German Research Centre for Geosciences, Potsdam, Germany Ring-shear test data of quartz sand used for analogue experiments in the laboratory of the Institute of Geophysics of the Czech Academy of Science, Prague GFZ Data Services 2019 EPOS Multi-scale laboratories analogue models of geologic processes Cohesion deformation > fracturing earth interior setting > crust setting > continental-crustal setting > upper continental crustal setting EARTH SCIENCE > SOLID EARTH > TECTONICS EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > CALIBRATION/VALIDATION fault Force sensor Friction coefficient Iron Powder Ring-shear tester Sand > Quartz Sand tectonic and structural features Warsitzka, Michael Michael Warsitzka 0000-0003-1774-5888 Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic Závada, Prokop Prokop Závada 0000-0003-1702-3770 Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic Rosenau, Matthias Matthias Rosenau 0000-0003-1134-5381 GFZ German Research Centre for Geosciences, Potsdam, Germany Laboratory of the Institute of Geophysics of the Czech Academy of Science (Prag, Czech Republic) Institute of Geophysics of the Czech Academy of Sciences, 141 31 Praha 4, Czech Republic 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.2016.01.017 10.1016/j.tecto.2005.12.013 10.1016/j.tecto.2019.05.001 10.1130/L670.1 10.1002/2016JB012915 10.1016/j.jsg.2015.03.008 10.1002/ceat.200303112 978-3-540-73767-4 10.1016/j.tecto.2008.07.005 CC BY 4.0 This dataset provides friction data from ring-shear tests (RST) for a quartz sand used in analogue experiments at the Institute of Geophysics of the Czech Academy of Science (IGCAS) (Kratinová et al., 2006; Zavada et al., 2009; Lehmann et al., 2017; Krýza et al., 2019). It is characterized by means of internal friction coefficients µ and cohesion C.

According to our analysis the materials show a Mohr-Coulomb behaviour characterized by a linear failure envelope. Peak friction coefficients µP of the tested material is ~0.75, dynamic friction coeffi-cients µD is ~0.60 and reactivation friction coefficients µR is ~0.64. Cohesions of the material range between 90 and 130 Pa. The material shows a minor rate-weakening of <1% per ten-fold change in shear velocity v.