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Data Publication
Ring-shear test data of corundum sand “NKF120” used for analogue modelling in the experimental tectonics laboratory at GFZ Potsdam
Rosenau, Matthias | Pohlenz, Andre
GFZ Data Services
(2023)
This dataset provides friction data from ring-shear tests on corundum sand “NKF120” used in analogue modelling of tectonic processes as a rock analogue for “strong” or “high density” layers in the earth’s upper crust (e.g. Klinkmüller et al., 2016) or as an additive to PDMS silicone oil to increase its density and non-linearity (Zwaan et al., 2018). According to our analysis the material shows a Mohr-Coulomb behaviour characterized by a linear failure envelope. Peak, dynamic and reactivation friction coefficients of corundum sand are µP = 0.75, µD = 0.57, and µR = 0.62, respectively (Table 5). Cohesion of the material ranges between 100-150 Pa. The material shows a minor rate-weakening of ~1% per ten-fold change in shear velocity v and a stick-slip behaviour at low shear velocities. The tested bulk material consists of corundum sand with grain size of 90-120 µm (Table 1). Corundum sand is produced as industrial abrasive materials and sold e.g. by the company Nico Bosse Strahlmittel Berlin. The data presented here are derived by ring shearspan> testing using a SCHULZE RST-01.pc (Schulze, 1994, 2003, 2008) at HelTec, the Laboratory for experimental tectonics at the Helmholtz Center Potsdam – GFZ German Research Centre for Geosciences in Potsdam, Germany.
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Source publisher
GFZ Data Services
DOI
10.5880/GFZ.4.1.2023.009
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
References
DOI of paper when available
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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
Rudolf, M., & Warsitzka, M. (2021). <i>RST Evaluation - Scripts for analysing shear experiments from the Schulze RST.pc01 ring shear tester</i>. GFZ Data Services. https://doi.org/10.5880/GFZ.4.1.2021.001
10.5880/GFZ.4.1.2021.001
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
Powders and Bulk Solids. (2007). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-73768-1
10.1007/978-3-540-73768-1
Cites
Zwaan, F., Schreurs, G., Ritter, M., Santimano, T., & Rosenau, M. (2018). <i>Rheology of PDMS-corundum sand mixtures from the Tectonic Modelling Lab of the University of Bern (CH)</i> [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2018.023
10.5880/fidgeo.2018.023
Cites
Contact
Rosenau
rosen@potsdam.de
GFZ German Research Centre for Geosciences, Potsdam, Germany
Citiation
Rosenau, M., & Pohlenz, A. (2023). Ring-shear test data of corundum sand “NKF120” used for analogue modelling in the experimental tectonics laboratory at GFZ Potsdam [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.1.2023.009