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Metadata Files

Data Publication

Ring-shear test data of glass beads 200-300 µm used for analogue experiments in the tectonic modelling labs at GFZ Potsdam and the Institute of Geophysics of the Czech Academy of Science, Prague

Rosenau, Matthias | Kemnitz, Helga | Pohlenz, Andre | Warsitzka, Michael | Zavada, Prokop

GFZ Data Services

(2022)

Descriptions

This dataset provides friction data from ring-shear tests on glass beads with a diameter of 200-300 µm used in analogue modelling of tectonic processes as a rock analogue for “weak” layers in the earth’s upper crust (e.g. Klinkmüller et al., 2016; Ritter et al., 2016; Lohrmann et al., 2003) or as “seismogenic” crust (Rudolf et al., 2022). The glass beads are characterized by means of internal friction coefficients µ and cohesion C. According to our analysis the materials show a Mohr-Coulomb behaviour characterized by a linear failure envelope. Peak, dynamic and reactivation friction coefficients of the glass beads are µP = 0.51 , µD = 0.40, and µR = 0.44, respectively (Table 5). Cohesion of the material ranges between 40 Pa and 70 Pa. The material shows a minor rate-weakening of ~1% per ten-fold change in shear velocity v and a stick-slip behaviour at low shear velocities and at high loads.
The data presented here are derived by ring shearspan> 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 (<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) and Ritter et al. (2016).

Keywords


Originally assigned keywords
EPOS
TCS MSL
analogue models of geologic processes
multi-scale laboratories
property data of analogue modelling materials
analogue modelling results
software tools
Cohesion
deformation &gt; shearing
fault
Friction coefficient
Microspheres &gt; Glassy
Ring-shear tester

Corresponding MSL vocabulary keywords
cohesion
cohesion
friction coefficient
frictional deformation
friction coefficient

MSL enriched keywords
Measured property
friction - controlled slip rate
cohesion
Measured property
friction - controlled slip rate
cohesion
friction coefficient
Inferred deformation behavior
deformation behaviour
frictional deformation
friction coefficient
analogue modelling material
granular modelling material
synthetic granular material
glass microspheres
Apparatus
deformation testing
shear testing
rotary shear apparatus
Apparatus
characterization of modelling material
frictional property determination
rotary shear apparatus
rate and state friction (RSF) parameters
brittle deformation
analogue modelling
rate and state friction (RSF) parameters
Earth's structure
Earth crust
upper crust
deformation experiments

MSL enriched sub domains i

rock and melt physics
analogue modelling of geologic processes

Source

https://dataservices.gfz-potsdam.de/panmetaworks/showshort.php?id=bd8c0c3f-7017-11ed-880f-9b1bb437f730

Source publisher

GFZ Data Services


DOI

10.5880/gfz.4.1.2022.002


Creators

Rosenau, Matthias

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1134-5381

Kemnitz, Helga

GFZ German Research Centre for Geosciences, Potsdam, Germany

Pohlenz, Andre

GFZ German Research Centre for Geosciences, Potsdam, Germany

Warsitzka, Michael

Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic | Bundesgesellschaft für Endlagerung mbH (BGE), Peine, Germany

ORCID:

https://orcid.org/0000-0003-1774-5888

Zavada, Prokop

Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic

ORCID:

https://orcid.org/0000-0003-1702-3770


Contributors

Rosenau, Matthias

ContactPerson

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1134-5381

Rosenau, Matthias

DataCollector

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1134-5381

Rosenau, Matthias

DataCurator

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1134-5381

Rosenau, Matthias

DataManager

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1134-5381

Rosenau, Matthias

Editor

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1134-5381

Rosenau, Matthias

HostingInstitution

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1134-5381

Rosenau, Matthias

ProjectLeader

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1134-5381

Rosenau, Matthias

Researcher

GFZ German Research Centre for Geosciences, Potsdam, Germany

ORCID:

https://orcid.org/0000-0003-1134-5381

Kemnitz, Helga

Producer

GFZ German Research Centre for Geosciences, Potsdam, Germany

Kemnitz, Helga

Researcher

GFZ German Research Centre for Geosciences, Potsdam, Germany

Pohlenz, Andre

Producer

GFZ German Research Centre for Geosciences, Potsdam, Germany

Pohlenz, Andre

ProjectMember

GFZ German Research Centre for Geosciences, Potsdam, Germany

Pohlenz, Andre

RelatedPerson

GFZ German Research Centre for Geosciences, Potsdam, Germany

Warsitzka, Michael

Researcher

Institute of Geophysics, Czech Academy of Sciences, Prague, Czech Republic | Bundesgesellschaft für Endlagerung mbH (BGE), Peine, Germany

ORCID:

https://orcid.org/0000-0003-1774-5888

HelTec-Helmholtz Laboratory For Tectonic Modelling (GFZ German Research Centre For Geosciences, Germany)

HostingInstitution

GFZ German Research Centre for Geosciences, Potsdam, Germany

labid:

9ba34c109b827b177aab36e0266b1643

Rosenau

ContactPerson

GFZ German Research Centre for Geosciences, Potsdam, Germany


References

10.1016/j.tecto.2016.01.017

10.1016/s0191-8141(03)00005-1

10.1002/2016jb012915

10.1029/2021gc009825

https://gitext.gfz-potsdam.de/analab-code/rst-evaluation/

10.1002/ceat.200303112


Citation

Rosenau, M., Kemnitz, H., Pohlenz, A., Warsitzka, M., & Zavada, P. (2022). Ring-shear test data of glass beads 200-300 µm used for analogue experiments in the tectonic modelling labs at GFZ Potsdam and the Institute of Geophysics of the Czech Academy of Science, Prague [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.1.2022.002


Dates

Issued:

2022


Rights

Creative Commons Attribution 4.0 International