2026-04-16T21:34:11Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:66102021-09-30T10:37:53ZDOIDBDOIDB.GFZ

false4DOIDB.GFZ 10.5880/GFZ.4.1.2019.004 Rosenau, Matthias Matthias Rosenau 0000-0003-1134-5381 GFZ German Research Centre for Geosciences, Potsdam, Germany Pohlenz, Andre Andre Pohlenz GFZ German Research Centre for Geosciences, Potsdam, Germany Kemnitz, Helga Helga Kemnitz GFZ German Research Centre for Geosciences, Potsdam, Germany Warsitzka, Michael Michael Warsitzka 0000-0003-1774-5888 GFZ German Research Centre for Geosciences, Potsdam, Germany Ring-shear test data of quartz sand G23 used for analogue experiments in the Helmholtz Laboratory for Tectonic Modelling (HelTec) at the GFZ German Research Centre for Geosciences in Potsdam GFZ Data Services 2018 analogue models of geologic processes EPOS Multi-scale Laboratories property data of analogue modelling materials software tools EARTH SCIENCE > SOLID EARTH > TECTONICS EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > CALIBRATION/VALIDATION earth interior setting > crust setting > continental-crustal setting > upper continental crustal setting deformation > fracturing fault tectonic and structural features Sand > Quartz Sand Ring-shear tester Matlab (Mathworks) Force sensor Friction coefficient Cohesion Rosenau, Matthias Matthias Rosenau 0000-0003-1134-5381 GFZ German Research Centre for Geosciences, Potsdam, Germany Pohlenz, Andre Andre Pohlenz GFZ German Research Centre for Geosciences, Potsdam, Germany Pohlenz, Andre Andre Pohlenz GFZ German Research Centre for Geosciences, Potsdam, Germany Kemnitz, Helga Helga Kemnitz GFZ German Research Centre for Geosciences, Potsdam, Germany Warsitzka, Michael Michael Warsitzka 0000-0003-1774-5888 GFZ German Research Centre for Geosciences, Potsdam, Germany HelTec - Helmholtz Laboratory for Tectonic Modelling (GFZ Potsdam, Germany) GFZ German Research Centre for Geosciences, Potsdam, Germany en 10.1016/j.tecto.2011.09.016 10.1111/j.1945-5100.2007.tb00556.x 10.1016/j.tecto.2016.01.017 10.1016/j.epsl.2010.12.002 10.1002/2016JB012915 10.1016/j.tecto.2017.11.018 10.1016/j.jsg.2015.03.008 10.1002/ceat.200303112 https://www.springer.com/de/book/9783540737674 10.1016/j.tecto.2011.11.018 10.5194/se-6-9-2015 DOI of Ge et al. when available 3 Files application/octet-stream application/octet-stream application/octet-stream CC BY 4.0 This dataset provides friction data from ring-shear tests (RST) for a quartz sand (type “G23”). This material is used in various types of analogue experiments in the Helmholtz Laboratory for Tectonic Modelling (HelTec) at the GFZ German Research Centre for Geosciences in Potsdam for simulating brittle rocks in the upper crust (e,g. Kenkmann et al., 2007; Contardo et al., 2011; Reiter et al., 2011;Warsitzka et al., 2013; Santimano,et al., 2015; Warsitzka et al., 2015; Ritter et al., 2016; 2018 a,b). The material has been characterized by means of internal friction coefficients µ and cohesions C. According to our analysis the material shows a Mohr-Coulomb behaviour characterized by a linear failure envelope and peak, dynamic and reactivation friction coefficients of µP = 0.73, µD = 0.57 and µR = 0.65, respectively. Cohesions C are in the order of 10 – 120 Pa. The material shows a minor rate-weakening of <1% per ten-fold change in shear velocity v. Further information about materical characteristics, measurement procedures, sample preparation, the RST (Ring-shear test) and VST (Velocity stepping test) procedure, as well as the analysed method is proviced in the data description file. The list of files explains the file and folder structure of the data set.