Ring-shear test data of garnet sand used for analogue modelling in the experimental tectonics laboratory at GFZ German Research Centre for Geosciences, Potsdam
Cite as:
Rosenau, Matthias; Pohlenz, Andre (2023): Ring-shear test data of garnet sand used for analogue modelling in the experimental tectonics laboratory at GFZ German Research Centre for Geosciences, Potsdam. GFZ Data Services. https://doi.org/10.5880/GFZ.4.1.2023.010
Status
I N R E V I E W : Rosenau, Matthias; Pohlenz, Andre (2023): Ring-shear test data of garnet sand used for analogue modelling in the experimental tectonics laboratory at GFZ German Research Centre for Geosciences, Potsdam. GFZ Data Services. https://doi.org/10.5880/GFZ.4.1.2023.010
Abstract
This dataset provides friction data from ring-shear tests on garnet sand 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).
According to our analysis the material shows a Mohr-Coulomb behaviour characterized by a linear failure envelope. Peak, dynamic and reactivation friction coefficients of garnet sand are µP = 0.83, µD = 0.61, and µR = 0.73, respectively (Table 5). Cohesion of the material ranges between 20-120 Pa. The material shows a no significant rate-dependency.
The data presented here are derived by ring shear 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. 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).
Authors
Rosenau, Matthias;GFZ German Research Centre for Geosciences, Potsdam, Germany
Pohlenz, Andre;GFZ German Research Centre for Geosciences, Potsdam, Germany
Contact
Rosenau, Matthias; GFZ German Research Centre for Geosciences, Potsdam, Germany; ➦
Contributors
HelTec - Helmholtz Laboratory for Tectonic Modelling (GFZ German Research Centre for Geosciences, Germany)
affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
creator
creatorName (nameType=Personal): Pohlenz, Andre
givenName: Andre
familyName: Pohlenz
affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
titles
title: Ring-shear test data of garnet sand used for analogue modelling in the experimental tectonics laboratory at GFZ German Research Centre for Geosciences, Potsdam
publisher: GFZ Data Services
publicationYear: 2023
subjects
subject: EPOS
subject: multi-scale laboratories
subject: analogue models of geologic processes
subject: property data of analogue modelling materials
CharacterString: Ring-shear test data of garnet sand used for analogue modelling in the experimental tectonics laboratory at GFZ German Research Centre for Geosciences, Potsdam
CharacterString: This dataset provides friction data from ring-shear tests on garnet sand 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).
According to our analysis the material shows a Mohr-Coulomb behaviour characterized by a linear failure envelope. Peak, dynamic and reactivation friction coefficients of garnet sand are µP = 0.83, µD = 0.61, and µR = 0.73, respectively (Table 5). Cohesion of the material ranges between 20-120 Pa. The material shows a no significant rate-dependency.
The data presented here are derived by ring shear 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. 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).
pointOfContact
CI_ResponsibleParty
individualName
CharacterString: Rosenau, Matthias
organisationName
CharacterString: GFZ German Research Centre for Geosciences, Potsdam, Germany
CI_OnLineFunctionCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode codeListValue=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode_information): information
Released
Dataset
Abstract
;GFZ German Research Centre for Geosciences, Potsdam, Germany
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