Dataset

Ring-shear test data of glass beads <50 µm used for analogue experiments in the tectonic modelling labs at GFZ Potsdam and the Institute of Geophysics of the Czech Academy of Sciences, Prague

Rudolf, Michael; Rosenau, Matthias; Warsitzka, Michael; Zavada, Prokop;

2022-12 || GFZ Data Services

This dataset provides friction data from ring-shear tests on glass beads with a diameter of less than 50 µm used in analogue modelling of tectonic processes as a rock analogue for “weak” layers in the earth’s upper crust (e.g. Klinkmüller et al., 2016; Ritter et al., 2016; Lohrmann et al., 2003) or as “seismogenic” crust (Rudolf et al., 2022). The glass beads are 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, dynamic and reactivation friction coefficients of the glass beads are µP = 0.47 , µD = 0.44, and µR = 0.47, respectively (Table 5). Cohesion of the material ranges between 50 Pa and 70 Pa. The material shows a neglectable rate-weakening of <1% per ten-fold change in shear velocity v.

Originally assigned keywords

Corresponding MSL vocabulary keywords

MSL enriched keywords

Originally assigned sub domains

analogue modelling of geologic processes

MSL enriched sub domains	rock and melt physics analogue modelling of geologic processes
Source	http://doi.org/10.5880/GFZ.4.1.2022.003
Source publisher	GFZ Data Services
DOI	10.5880/GFZ.4.1.2022.003
License	CC BY 4.0
Authors	Rudolf, Michael 0000-0002-5077-5221 GFZ German Research Centre for Geosciences, Potsdam, Germany Rosenau, Matthias 0000-0003-1134-5381 GFZ German Research Centre for Geosciences, Potsdam, Germany Warsitzka, Michael 0000-0003-1774-5888 Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic Zavada, Prokop 0000-0003-1702-3770 Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic
References	Klinkmüller, M., Schreurs, G., Rosenau, M., & Kemnitz, H. (2016). Properties of granular analogue model materials: A community wide survey. Tectonophysics, 684, 23–38. https://doi.org/10.1016/j.tecto.2016.01.017 10.1016/j.tecto.2016.01.017 Cites Lohrmann, J., Kukowski, N., Adam, J., & Oncken, O. (2003). The impact of analogue material properties on the geometry, kinematics, and dynamics of convergent sand wedges. Journal of Structural Geology, 25(10), 1691–1711. https://doi.org/10.1016/s0191-8141(03)00005-1 10.1016/S0191-8141(03)00005-1 Cites Ritter, M. C., Leever, K., Rosenau, M., & Oncken, O. (2016). Scaling the sandbox—Mechanical (dis) similarities of granular materials and brittle rock. Journal of Geophysical Research: Solid Earth, 121(9), 6863–6879. Portico. https://doi.org/10.1002/2016jb012915 10.1002/2016JB012915 Cites Rudolf, M., Rosenau, M., & Oncken, O. (2021). The Spectrum of Slip Behaviors of a Granular Fault Gouge Analogue Governed by Rate and State Friction. Geochemistry, Geophysics, Geosystems, 22(12). Portico. https://doi.org/10.1029/2021gc009825 10.1029/2021GC009825 Cites Cites Santimano, T., Rosenau, M., & Oncken, O. (2015). Intrinsic versus extrinsic variability of analogue sand-box experiments – Insights from statistical analysis of repeated accretionary sand wedge experiments. Journal of Structural Geology, 75, 80–100. https://doi.org/10.1016/j.jsg.2015.03.008 10.1016/j.jsg.2015.03.008 Cites Schulze, D. (2003). Time‐ and Velocity‐Dependent Properties of Powders Effecting Slip‐Stick Oscillations. Chemical Engineering & Technology, 26(10), 1047–1051. Portico. https://doi.org/10.1002/ceat.200303112 10.1002/ceat.200303112 Cites
Contact	Rosenau GFZ German Research Centre for Geosciences, Potsdam, Germany rosen@potsdam.de
Citation	Rudolf, M., Rosenau, M., Warsitzka, M., & Zavada, P. (2022). Ring-shear test data of glass beads <50 µm used for analogue experiments in the tectonic modelling labs at GFZ Potsdam and the Institute of Geophysics of the Czech Academy of Sciences, Prague [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.1.2022.003