10.5880/fidgeo.2018.072 eng dataset GFZ German Research Centre for Geosciences datapub@gfz-potsdam.de http://www.gfz-potsdam.de Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences pointOfContact 2019-11-28 urn:ogc:def:crs:EPSG:4326 Ring shear test data of feldspar sand and quartz sand used in the Tectonic Laboratory (TecLab) at Utrecht University for experimental Earth Science applications 2019-11-28 revision doi:10.5880/fidgeo.2018.072 Willingshofer, Ernst Department of Tectonics, Faculty of Earth Sciences, Utrecht University, Utrecht, The Netherlands author Sokoutis, Dimitrios Department of Tectonics, Faculty of Earth Sciences, Utrecht University, Utrecht, The Netherlands author Beekman, Fred Department of Tectonics, Faculty of Earth Sciences, Utrecht University, Utrecht, The Netherlands author Schönebeck, Jan-Michael GFZ German Research Centre for Geosciences, Potsdam, Germany author Warsitzka, Michael GFZ German Research Centre for Geosciences, Potsdam, Germany author Rosenau, Matthias GFZ German Research Centre for Geosciences, Potsdam, Germany author TecLab - Tectonic Modelling Laboratory (Utrecht University, The Netherlands) University, Utrecht, The Netherlands originator HelTec - Helmholtz Laboratory for Tectonic Modelling (GFZ Potsdam, Germany) GFZ German Research Centre for Geosciences, Potsdam, Germany originator GFZ Data Services publisher This dataset provides friction data from ring-shear tests (RST) on feldspar sand and quartz sand, which are used to simulate brittle behaviour in crust- and lithosphere-scale analogue experiments at the Tectonic Laboratory (TecLab), Utrecht University (NL) (Willingshofer et al., 2005; Willingshofer & Sokoutis, 2009; Athmer et al., 2010; Luth et al., 2010; Fernández-Lozano et al., 2011; Leever et al., 2011; Sokoutis & Willingshofer, 2011; Fernández-Lozano et al., 2012; Luth et al., 2013; Munteanu et al., 2013; Willingshofer et al., 2013; Munteanu et al., 2014; Calignano et al., 2015a, b; Ortner et al., 2015; Gabrielsen et al., 2016; Calignano et al., 2017; van Gelder et al., 2017; Wang et al., 2017; Beniest et al., 2018 ). The materials have been characterized by means of internal 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. According to our analysis both materials show a Mohr-Coulomb behaviour characterized by a linear failure envelope. Peak, dynamic and reactivation friction coefficients of the feldspar sand are µP = 0.68, µD = 0.55, and µR = 0.61, respectively. Friction coefficients of the quartz sand are µP = 0.63, µD = 0.48, and µR = 0.52, respectively. Cohesions of the feldspar sand and the quartz sand are in the order of few tens of Pa. A minor rate-weakening of 1% per ten-fold rate change is evident for the feldspar sand, whereas the quartz sand shows a significant rate weakening of ~5%. 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. Complete Rosenau, Matthias GFZ German Research Centre for Geosciences, Potsdam, Germany Lab manager rosen@gfz-potsdam.de http://www.gfz-potsdam.de/en/staff/matthias-rosenau/ informtion pointOfContact EPOS multi-scale laboratories analogue models of geologic processes property data of analogue modelling materials software tools Cohesion Friction coefficient EPOS WP16 Analogue Measured Property publication deformation > fracturing EPOS WP16 Analogue Process/Hazard publication earth interior setting > crust setting > continental-crustal setting > upper continental crustal setting EPOS WP16 Analogue Main Setting publication EARTH SCIENCE > SOLID EARTH > TECTONICS EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > CALIBRATION/VALIDATION NASA/GCMD Earth Science Keywords publication fault EPOS WP16 Analogue Geologic Structure publication Force sensor EPOS WP16 Analogue Monitoring publication Iron Powder Sand > Quartz Sand EPOS WP16 Analogue Material publication Ring-shear tester EPOS WP16 Analogue Apparatus publication tectonic and structural features EPOS WP16 Analogue Geologic Feature publication CC BY 4.0 CC BY 4.0 10.1144/GSL.SP.2005.243.01.18 DOI IsSupplementTo 10.1002/2016JB012915 DOI References 10.1016/j.jsg.2015.03.008 DOI References 10.1002/ceat.200303112 DOI References 978-3-540-73767-4 ISBN References 10.1016/j.tecto.2016.01.017 DOI References 10.1111/j.1365-3091.2009.01120.x DOI References 10.3389/feart.2018.00148 DOI References 10.1002/2016TC004424 DOI References 10.1016/j.epsl.2015.05.022 DOI References 10.1002/2014TC003756 DOI References 10.1029/2010TC002719 DOI References 10.1029/2012TC003122 DOI References 10.1144/petgeo2015-029 DOI References 10.1029/2010TC002823 DOI References 10.1007/s00531-012-0846-4 DOI References 10.1016/j.epsl.2014.03.036 DOI References 10.1016/j.tecto.2013.03.009 DOI References 10.1111/bre.12129 DOI References 10.1016/j.epsl.2011.03.028 DOI References 10.1016/j.epsl.2017.05.012 DOI References 10.1111/sed.12313 DOI References 10.1130/G25321A.1 DOI References 10.1144/GSL.SP.2005.243.01.18 DOI References 10.1130/G34815.1 DOI References eng geoscientificInformation http://doi.org/10.5880/fidgeo.2018.072 WWW:LINK-1.0-http--link Data Access - DOI Data Access - DOI information