10.5880/fidgeo.2018.028 Zwaan, Frank Frank Zwaan 0000-0001-8226-2132 Institute of Geological Sciences, University of Bern, Bern, Switzerland Schreurs, Guido Guido Schreurs 0000-0002-4544-7514 Institute of Geological Sciences, University of Bern, Bern, Switzerland Gentzmann, Robert Robert Gentzmann GFZ German Research Centre for Geosciences, Potsdam, Germany Warsitzka, Michael Michael Warsitzka 0000-0003-1774-5888 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 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 Ring-shear tester Sand > Quartz Sand tectonic and structural features Zwaan, Frank Frank Zwaan 0000-0001-8226-2132 Institute of Geological Sciences, University of Bern, Bern, Switzerland Schreurs, Guido Guido Schreurs 0000-0002-4544-7514 Institute of Geological Sciences, University of Bern, Bern, Switzerland Gentzmann, Robert Robert Gentzmann GFZ German Research Centre for Geosciences, Potsdam, Germany Warsitzka, Michael Michael Warsitzka 0000-0003-1774-5888 GFZ German Research Centre for Geosciences, Potsdam, Germany Rosenau, Matthias Matthias Rosenau 0000-0003-1134-5381 GFZ German Research Centre for Geosciences, Potsdam, Germany 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 German Research Centre for Geosciences, 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 10.1016/j.tecto.2016.01.017 10.1002/2016JB012915 10.1016/j.jsg.2015.03.008 10.1002/ceat.200303112 https://www.springer.com/de/book/9783540737674 1 CC BY 4.0 This dataset provides internal and basal (wall) friction data from ring-shear tests (RST) on a quartz sand material that has been used in tectonic experiments in Zwaan et al. (2016, 2017), Zwaan and Scheurs (2017) and in the Tectonic Modelling Lab of the University of Bern (CH) as an analogue for brittle layers in the crust or lithosphere. The material has been characterized by means of internal and basal friction coefficients μ and cohesions C as a remote service by the Helmholtz Laboratory for Tectonic Modelling (HelTec) at the GFZ German Research Centre for Geosciences in Potsdam for the Tectonic Modelling Lab of the University of Bern (UB).


According to our analysis the material behaves as a Mohr-Coulomb material characterized by a linear failure envelope. Internal peak, dynamic and reactivation friction coefficients are μP = 0.73, μD = 0.61, and μR = 0.66, respectively. Internal cohesions C are in the range of 10 to 70 Pa. Basal peak, dynamic and reactivation friction coefficients are μP = 0.41, μD = 0.35, and μR = 0.36, respectively, whereas basal cohesions C are in the range of 120 to 150 Pa. The rate dependency of the internal dynamic friction coefficient is insignificant (<1%).