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  Ring-shear test data of quartz sand – silicate cenospheres mixtures used for analogue experiments at the Institute of Geophysics of the Czech Academy of Science, Prague

Warsitzka, M., Závada, P., Krýza, O., Pohlenz, A., Rosenau, M. (2021): Ring-shear test data of quartz sand – silicate cenospheres mixtures used for analogue experiments at the Institute of Geophysics of the Czech Academy of Science, Prague.
https://doi.org/10.5880/fidgeo.2021.024

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 Urheber:
Warsitzka, Michael1, Autor
Závada, Prokop1, Autor
Krýza, Ondřej1, Autor
Pohlenz, Andre2, Autor              
Rosenau, M.2, Autor              
Affiliations:
1External Organizations, ou_persistent22              
24.1 Lithosphere Dynamics, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146034              

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Schlagwörter: EPOS, multi-scale laboratories, analogue models of geologic processes, property data of analogue modelling materials, Cohesion, Friction coefficient, deformation > fracturing, earth interior setting > crust setting > continental-crustal setting > upper continental crustal setting, fault, Force sensor, Iron Powder, Sand > Quartz Sand, Ring-shear tester, tectonic and structural features, Cohesion, Force sensor, Friction coefficient, Iron Powder, Ring-shear tester, Sand > Quartz Sand, deformation > fracturing, earth interior setting > crust setting > continental-crustal setting > upper continental crustal setting, fault, tectonic and structural features
 Zusammenfassung: This dataset provides friction data from ring-shear tests (RST) for mixtures of quartz sand and sili-cate cenospheres, which are used for analog experiments in the laboratory of the Institute of Geo-physics of the Czech Academy of Science (IG CAS) (Warsitzka et al., 2021). The mixtures have been characterized by means of internal friction coefficients µ and cohesion 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. Peak friction coefficients µP of the tested materials range between 0.55 and 0.75, dynamic friction coefficients µD between 0.47 and 0.60 and reactivation friction coefficients µR be-tween 0.52 and 0.65. Cohesions of the materials vary between 20 and 120 Pa. The materials show a minor rate-weakening of <1.2% per ten-fold change in shear velocity v.

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Sprache(n): eng - Englisch
 Datum: 20212021
 Publikationsstatus: Final veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: Potsdam : GFZ Data Services
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.5880/fidgeo.2021.024
GFZPOF: p4 T3 Restless Earth
 Art des Abschluß: -

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