2024-03-29T10:35:28Zhttp://doidb.wdc-terra.org/oaip/oaioai:doidb.wdc-terra.org:67322021-09-30T10:31:16ZDOIDBDOIDB.FID
doi:10.5880/fidgeo.2019.025
eng
GFZ German Research Centre for Geosciences
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2019-11-28
urn:ogc:def:crs:EPSG:4326
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).
2019-10-02
revision
doi:10.5880/fidgeo.2019.025
Román-Berdiel, Teresa
Departamento de Ciencias de la Tierra, Universidad de Zaragoza
author
Casas, Antonio M.
Departamento de Ciencias de la Tierra, Universidad de Zaragoza
author
Pueyo, Emilio Luis
Instituto Geológico y Minero de España
author
Peiro Chamarro, Alba
Departamento de Ciencias de la Tierra, Universidad de Zaragoza
author
Soto, Ruth
Instituto Geológico y Minero de España
author
Pohlenz, Andre
GFZ German Research Centre for Geosciences, Potsdam, Germany
author
Warsitzka, Michael
GFZ German Research Centre for Geosciences, Potsdam, Germany
author
Rosenau, Matthias
GFZ German Research Centre for Geosciences, Potsdam, Germany
author
Laboratorio de Modelización Analógica (Universidad de Zaragoza-IGME, Spain)
originator
HelTec - Helmholtz Laboratory for Tectonic Modelling (GFZ German Research Centre for Geosciences, Germany)
originator
GFZ Data Services
datapub@gfz-potsdam.de
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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 shear 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.
Complete
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/
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EPOS
Multi-scale laboratories
analogue models of geologic processes
property data of analogue modelling materials
EARTH SCIENCE > SOLID EARTH > TECTONICS
EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > CALIBRATION/VALIDATION
NASA/GCMD Earth Science Keywords
publication
earth interior setting > crust setting > continental-crustal setting > upper continental crustal setting
EPOS WP16 Analogue Main Setting
publication
deformation > fracturing
EPOS WP16 Analogue Process/Hazard
publication
wrench fault
thrust fault
fault
EPOS WP16 Analogue Geologic Structure
publication
tectonic and structural features
EPOS WP16 Analogue Geologic Feature
publication
Sand > Quartz Sand
EPOS WP16 Analogue Material
publication
Ring-shear tester
EPOS WP16 Analogue Apparatus
publication
Force sensor
EPOS WP16 Analogue Monitoring
publication
Friction coefficient
Cohesion
EPOS WP16 Analogue Measured Property
publication
CC BY 4.0
CC BY 4.0
http://hdl.handle.net/10272/7176
URL
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eng
http://dx.doi.org/doi:10.5880/fidgeo.2019.025
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