Ring-shear test data of corundum sand “NKF120” used for analogue modelling in the experimental tectonics laboratory at GFZ Potsdam

Rosenau, Matthias; Pohlenz, Andre;

2023-11 || GFZ Data Services

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.

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
  • microscopy and tomography
Source http://doi.org/10.5880/GFZ.4.1.2023.009
Source publisher GFZ Data Services
DOI 10.5880/GFZ.4.1.2023.009
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
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
  • Rudolf, M., & Warsitzka, M. (2021). RST Evaluation - Scripts for analysing shear experiments from the Schulze RST.pc01 ring shear tester. 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). Rheology of PDMS-corundum sand mixtures from the Tectonic Modelling Lab of the University of Bern (CH) [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2018.023
  • 10.5880/fidgeo.2018.023
  • Cites
Contact
  • Rosenau
  • GFZ German Research Centre for Geosciences, Potsdam, Germany
  • rosen@potsdam.de
Citation 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