Data Publication
Ring shearspan> test data of quartz sand and colored quartz sand used for analogue modelling in the Laboratorio de modelización analógica, Universidad de Zaragoza, Spain (EPOS TNA call 2017).
Román-Berdiel, Teresa | Casas, Antonio M. | Pueyo, Emilio Luis | Peiro Chamarro, Alba | Soto, Ruth | Pohlenz, Andre | Warsitzka, Michael | Rosenau, Matthias
GFZ Data Services
(2019)
Descriptions
This dataset provides friction data from ring-shear tests (RST) on different types of quartz sand used in the Laboratorio de modelización analógica of the Universidad de Zaragoza (UZ, Spain) as an analogue for brittle layers in the crust or lithosphere (Izquierdo-Llavall & Casas-Sainz, 2012; Calvín et al., 2013; Pueyo Anchuela et al., 2016; Peiro et al., 2018; Pueyo et al., 2018; Izquierdo-Llavall et al., submitted). The materials (quartz sand, green coloured quartz sand mixture, black coloured quartz sand) have been characterized by means of internal friction coefficients µ and cohesions C as a remote service by the Helmholtz Laboratory for Tectonic Modelling (HelTec) at the GFZ German Research Centre for Geosciences in Potsdam. According to our analysis the materials show a Mohr-Coulomb behaviour characterized by a linear failure envelope. Friction coefficients of the pure quartz sand and the green quartz sand mixture are similar (µP = 0.74 – 0.76, µD = 0.56 – 0.60, µR = 0.61 – 0.64), whereas friction coefficients of the black coloured quartz sand are lower (µP = 0.48, µD = 0.39, µR = 0.45). Cohesions of all sands range between 40 and 150 Pa. A minor rate-weakening of ~1 % per ten-fold change in shear velocity v is evident. The tested materials are quartz sands with a grain size of 0.063 – 0.4 mm and bulk densities of ρ = 1610-1800 kg m^-3. 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 and shear velocities similar to sandbox experiments.
Keywords
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Metadata
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Source
Source publisher
| GFZ Data Services |
DOI
| 10.5880/fidgeo.2019.025 |
Creators
| Román-Berdiel, Teresa |
| Personal |
| Departamento de Ciencias de la Tierra, Universidad de Zaragoza |
| Casas, Antonio M. |
| Personal |
| Departamento de Ciencias de la Tierra, Universidad de Zaragoza |
| Pueyo, Emilio Luis |
| Personal |
| Instituto Geológico y Minero de España |
| Peiro Chamarro, Alba |
| Personal |
| Departamento de Ciencias de la Tierra, Universidad de Zaragoza |
| Soto, Ruth |
| Personal |
| Instituto Geológico y Minero de España |
| Pohlenz, Andre |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Warsitzka, Michael |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Rosenau, Matthias |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
Contributors
| Analogue Modelling Laboratory (University Of Zaragoza-IGME, Spain) |
| Personal |
| University of Zaragoza - IGME, Zaragoza, Spain |
| HelTec-Helmholtz Laboratory For Tectonic Modelling (GFZ German Research Centre For Geosciences, Germany) |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
Citation
Román-Berdiel, T., Casas, A. M., Pueyo, E. L., Peiro Chamarro, A., Soto, R., Pohlenz, A., Warsitzka, M., & Rosenau, M. (2019). Ring shear test data of quartz sand and colored quartz sand used for analogue modelling in the Laboratorio de modelización analógica, Universidad de Zaragoza, Spain (EPOS TNA call 2017). [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2019.025
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Dates
| Issued | 2019 |
Language
en
Rights
| Name | CC BY 4.0 |
| URI | http://creativecommons.org/licenses/by/4.0 |
Locations
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