Ring shear test data of iron powder – quartz sand mixture: a new marker material for analog modelling in a CT scanner at Utrecht University (The Netherlands) (EPOS TNA call 2017)

This dataset provides friction data from ring-shear tests (RST) on an iron powder – quartz sand mixture (weight ratio 1:3). This material is used in particular as marker material in analogue experiments that are monitored with CT-scanners in the Tectonic Laboratory (TecLab) at Utrecht University (NL) (Pueyo et al., 2017; 2018). The material has 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 in the framework of the EPOS (European Plate Observing System) Transnational Access (TNA) call of the Thematic Core Service (TCS) Multi-scale Laboratories (MSL) in 2017.

According to our analysis the material behaves as a Mohr-Coulomb material characterized by a linear failure envelope. Peak, dynamic and reactivation friction coefficients are µP = 0.65, µD = 0.53, and µR = 0.62, respectively. Cohesions C are in the range of 70 to 100 Pa. A minor rate-weakening of ~3% per ten-fold change in shear velocity v is evident.

Additional Info

Field Value
Source http://doi.org/doi:10.5880/fidgeo.2019.019
Author Beekman, Fred (Department of Tectonics, Faculty of Earth Sciences, Utrecht University, Utrecht, The Netherlands), Willingshofer, Ernst (Department of Tectonics, Faculty of Earth Sciences, Utrecht University, Utrecht, The Netherlands), Sokoutis, Dimitrios (Department of Tectonics, Faculty of Earth Sciences, Utrecht University, Utrecht, The Netherlands), Pueyo, Emilio Luis (Instituto Geológico y Minero de España, Departamento de Ciencias de la Tierra, Universidad de Zaragoza, Spain), Casas, Antonio M. (Instituto Geológico y Minero de España, Departamento de Ciencias de la Tierra, Universidad de Zaragoza, Spain), Peiro, Alba (Instituto Geológico y Minero de España, Departamento de Ciencias de la Tierra, Universidad de Zaragoza, Spain), Román-Berdiel, Teresa (Instituto Geológico y Minero de España, Departamento de Ciencias de la Tierra, Universidad de Zaragoza, Spain), Soto, Ruth (Instituto Geológico y Minero de España, Departamento de Ciencias de la Tierra, Universidad de Zaragoza, Spain), Schönebeck, Jan-Michael (GFZ German Research Centre for Geosciences, Potsdam, Germany), Warsitzka, Michael (GFZ German Research Centre for Geosciences, Potsdam, Germany), Rosenau, Matthias (GFZ German Research Centre for Geosciences, Potsdam, Germany)
Provided by other-lab
Citation Beekman, Fred, Willingshofer, Ernst, Sokoutis, Dimitrios, Pueyo, Emilio Luis, Casas, Antonio M., Peiro, Alba, Román-Berdiel, Teresa, Soto, Ruth, Schönebeck, Jan-Michael, Warsitzka, Michael, Rosenau, Matthias (2020): GFZ Dataservices http://doi.org/doi:10.5880/fidgeo.2019.019
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Dataset contact Rosenau, Matthias ( GFZ German Research Centre for Geosciences, Potsdam, Germany Lab manager rosen@gfz-potsdam.de http://www.gfz-potsdam.de/en/staff/matthias-rosenau/ )
Publication date 2020-02-19
Publisher http://www.gfz-potsdam.de/