Dataset
Data Publication
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
GFZ Data Services
(2022)
Descriptions
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.
The data presented here are derived by ring shearspan> testing using a SCHULZE RST-01.pc (Schulze, 1994, 2003, 2008) at the Helmholtz Laboratory for Tectonic Modelling (HelTec) of the GFZ German Research Centre for Geosciences in Potsdam. The RST is specially designed to measure friction coefficients µ and cohesions C in loose granular material accurately at low confining pressures (<20 kPa) and shear velocities (<1 mm/sec) similar to sandbox experiments. In this tester, a granular bulk material layer is sheared internally at constant normal stress σN and shear velocity v while shear force and lid displacement (corresponding to density and volume change ΔV) are measured continuously. For more details see Klinkmüller et al. (2016) and Ritter et al. (2016).
Keywords
Originally assigned keywords
EPOS
TCS MSL
analogue models of geologic processes
multi-scale laboratories
property data of analogue modelling materials
analogue modelling results
software tools
Cohesion
deformation > shearing
fault
Friction coefficient
Microspheres > Glassy
Ring-shear tester
Corresponding MSL vocabulary keywords
cohesion
cohesion
friction coefficient
frictional deformation
friction coefficient
MSL enriched keywords
Measured property
friction - controlled slip rate
cohesion
Measured property
friction - controlled slip rate
cohesion
friction coefficient
Inferred deformation behavior
deformation behaviour
frictional deformation
friction coefficient
analogue modelling material
granular modelling material
synthetic granular material
glass microspheres
Apparatus
deformation testing
shear testing
rotary shear apparatus
Apparatus
characterization of modelling material
frictional property determination
rotary shear apparatus
brittle deformation
analogue modelling
Earth's structure
Earth crust
upper crust
deformation experiments
Metadata
MSL enriched sub domains
rock and melt physics
analogue modelling of geologic processes
Resource Type
Source
Source publisher
| GFZ Data Services |
DOI
| 10.5880/gfz.4.1.2022.003 |
Creators
| Rudolf, Michael |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rosenau, Matthias |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Warsitzka, Michael |
| Personal |
| Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic | Bundesgesellschaft für Endlagerung mbH (BGE), Peine, Germany |
| Zavada, Prokop |
| Personal |
| Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic |
Contributors
| Rudolf, Michael |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rudolf, Michael |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rosenau, Matthias |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rosenau, Matthias |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rosenau, Matthias |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rosenau, Matthias |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rosenau, Matthias |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rosenau, Matthias |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rosenau, Matthias |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rosenau, Matthias |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Warsitzka, Michael |
| Personal |
| Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic | Bundesgesellschaft für Endlagerung mbH (BGE), Peine, Germany |
| HelTec-Helmholtz Laboratory For Tectonic Modelling (GFZ German Research Centre For Geosciences, Germany) |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rosenau |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
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 (M. Rosenau, Ed.) [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.1.2022.003
References
Dates
| Issued | 2022 |
Language
- no language entry found -
Rights
| Name | Creative Commons Attribution 4.0 International |
| URI | https://creativecommons.org/licenses/by/4.0/legalcode |
| Identifier | cc-by-4.0 |
| Identifier Scheme | SPDX |
| Scheme URI | https://spdx.org/licenses/ |
Locations
- no geo-locations found -