Description: 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.
Global identifier:
Doi(
"10.5880/fidgeo.2019.019",
)
Origins: /Wissenschaft/Helmholtz-Gemeinschaft/GFZ
Tags: Sand ? Kind ? Daten ? Modellierung ? Forschungseinrichtung ? Geowissenschaften ? Cohesion ? EARTH SCIENCE > SOLID EARTH > TECTONICS ? EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > CALIBRATION/VALIDATION ? EPOS ? Force sensor ? Friction coefficient ? Iron Powder ? Multi-scale laboratories ? Ring-shear tester ? Sand > Quartz Sand ? analogue models of geologic processes ? deformation > fracturing ? earth interior setting > crust setting > continental-crustal setting > upper continental crustal setting ? fault ? property data of analogue modelling materials ? software tools ? tectonic and structural features ? transnational access ?
License: cc-by/4.0
Language: Englisch/English
Issued: 2019-01-01
Time ranges: 2019-01-01 - 2019-01-01
Accessed 1 times.