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)

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, M.

doi:10.5880/fidgeo.2019.019

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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)

Authors

Beekman, Fred
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Willingshofer, Ernst
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Sokoutis, Dimitrios
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Pueyo, Emilio Luis
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Casas, Antonio M.
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Peiro, Alba
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Román-Berdiel, Teresa
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Soto, Ruth
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/persons/resource/jasch

Schönebeck, Jan-Michael
4.1 Lithosphere Dynamics, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Warsitzka, Michael
4.1 Lithosphere Dynamics, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Rosenau, M.
4.1 Lithosphere Dynamics, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Citation

Beekman, F., Willingshofer, E., Sokoutis, D., Pueyo, E. L., Casas, A. M., Peiro, A., Román-Berdiel, T., Soto, R., Schönebeck, J.-M., Warsitzka, M., Rosenau, M. (2019): 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).
https://doi.org/10.5880/fidgeo.2019.019

Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5000659

Abstract

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.