Dataset

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

Rosenau, Matthias; Pohlenz, Andre; Kemnitz, Helga; Warsitzka, Michael;

2018-12 || GFZ Data Services

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.

Originally assigned keywords

Corresponding MSL vocabulary keywords

MSL enriched keywords

Originally assigned sub domains

analogue modelling of geologic processes

MSL enriched sub domains	analogue modelling of geologic processes rock and melt physics
Source	http://dx.doi.org/doi:10.5880/GFZ.4.1.2019.004
Source publisher	GFZ Data Services
DOI	10.5880/GFZ.4.1.2019.004
License	CC BY 4.0
Authors	Rosenau, Matthias 0000-0003-1134-5381 GFZ German Research Centre for Geosciences, Potsdam, Germany Pohlenz, Andre GFZ German Research Centre for Geosciences, Potsdam, Germany Kemnitz, Helga GFZ German Research Centre for Geosciences, Potsdam, Germany Warsitzka, Michael 0000-0003-1774-5888 GFZ German Research Centre for Geosciences, Potsdam, Germany
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Contact	Rosenau, Matthias GFZ German Research Centre for Geosciences, Potsdam, Germany rosen@gfz-potsdam.de
Citation	Rosenau, M., Pohlenz, A., Kemnitz, H., & Warsitzka, M. (2018). 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 [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.1.2019.004