Data Publication

Large-scale biaxial experiments on gypsum-gouge faults and a bare PMMA fault: Mechanical data and selected strain and image data

Loes Buijze

Utrecht University

(2019)

Descriptions

Geodetic observations and large-scale laboratory experiments show that seismic instability is preceded by slow slip within a finite nucleation zone. In laboratory experiments rupture nucleation is studied mostly using bare (rock) interfaces, whereas upper crustal faults are typically filled with gouge. To investigate effects of gouge on nucleation, we performed a biaxial shearing experiment on a 350 mm long saw-cut fault filled with gypsum gouge, at room temperature and σ2 = 0.3 - 5 MPa. The gouge layer was sandwiched between polymethylmethacrylate (PMMA) plates that were densely instrumented with strain gauges. Digital Image Correlation (DIC) was used to obtain the deformation field at the top surface of the plates. For reference also a fault without gouge was deformed. Stick-slippan> behavior occurred on both the gouge-filled fault and the PMMA fault. Nucleation of instability on the PMMA fault persistently occurred from one location 80 mm from one of the fault ends, but nucleation on the gouge-filled fault was more complex, nucleating at the ends and/or at 120 mm from the end, with precursory slip occurring over a large fraction of the fault. Nucleation correlated to regions of high fault stress ratio τ/σn. Complexities in nucleation on the gouge-filled fault were related to small length-scale variations in normal stress caused by heterogeneous gouge compaction. Rupture velocities and slip rates were lower for the gouge-filled fault than for the bare PMMA fault. Stick-slip continued when σ2 was lowered, and the nucleation zone increased and interacted with the sample ends before transitioning into instability. The data is provided in a folder with 3 subfolders for 3 experiments. Detailed information about the files in these subfolders as well as information on how the data is processed is given in the explanatory file Buijze_2019_Data_description_sheet.docx. Contact person is Loes Buijze - TNO - loes.buijze@tno.nl

Keywords

Originally assigned keywords

Natural Sciences - Earth and related environmental sciences (1.5)

biaxial experiment

nucleation of instability

stick-slip

friction

gypsum gouge

Biaxial

gypsum

Analogue material

Friction

Photography

Strain gauge

EPOS

multi-scale laboratories

rock and melt physics properties

Corresponding MSL vocabulary keywords

biaxial compression apparatus

shear testing

rate and state friction (RSF) parameters

friction coefficient

frictional deformation

friction coefficient

gypsum

MSL enriched keywords

Apparatus

deformation testing

compression testing

biaxial compression apparatus

shear testing

Measured property

friction - controlled slip rate

rate and state friction (RSF) parameters

Measured property

friction - controlled slip rate

rate and state friction (RSF) parameters

friction coefficient

Inferred deformation behavior

deformation behaviour

frictional deformation

friction coefficient

minerals

sulfate minerals

gypsum

strain

conventional triaxial apparatus: saw-cut

Software

digital image correlation (DIC)

Earth's structure

Earth crust

tectonic deformation structure

tectonic fault

MSL enriched sub domains i

rock and melt physics

analogue modelling of geologic processes

Source

https://public.yoda.uu.nl/geo/UU01/OT6YIY.html

Source publisher

Utrecht University

DOI

10.24416/uu01-ot6yiy

Creators

Loes Buijze

Utrecht University | Netherlands Organisation for Applied Scientific Research (TNO) - Applied Geosciences

ORCID:

https://orcid.org/0000-0001-7749-8706

Author identifier (Scopus):

56196745400

Contributors

Buijze, Loes

ContactPerson

Utrecht University | Netherlands Organisation for Applied Scientific Research (TNO) - Applied Geosciences

ORCID:

https://orcid.org/0000-0001-7749-8706

Author identifier (Scopus):

56196745400

Buijze, Loes

Researcher

Utrecht University | Netherlands Organisation for Applied Scientific Research (TNO) - Applied Geosciences

ORCID:

https://orcid.org/0000-0001-7749-8706

Author identifier (Scopus):

56196745400

Guo, Yanshuang

Researcher

Institute of Geology, China Earthquake Administration

ORCID:

https://orcid.org/0000-0001-6645-4011

Author identifier (Scopus):

7406311585

Guo, Yanshuang

DataCollector

Institute of Geology, China Earthquake Administration

ORCID:

https://orcid.org/0000-0001-6645-4011

Author identifier (Scopus):

7406311585

Niemeijer, André Rik

Supervisor

Utrecht University

ORCID:

https://orcid.org/0000-0003-3983-9308

Author identifier (Scopus):

8731378600

Ma, Shengli

Researcher

Institute of Geology, China Earthquake Administration

ORCID:

https://orcid.org/0000-0002-5964-5458

Author identifier (Scopus):

40661562900

Spiers, Christopher James

Supervisor

Utrecht University

ORCID:

https://orcid.org/0000-0002-3436-8941

Author identifier (Scopus):

7003318682

Experimental rock deformation/HPT-Lab (Utrecht University, The Netherlands)

HostingInstitution

Utrecht University

Laboratory of Tectonophysics, State Key Laboratory of Earthquake Dynamics

HostingInstitution

Institute of Geology, China Earthquake Administration

References

http://doi.org/10.5334/jors.bl

https://doi.org/10.1029/2018GL079201

Citation

Buijze, L. (2019). Large-scale biaxial experiments on gypsum-gouge faults and a bare PMMA fault: Mechanical data and selected strain and image data. Utrecht University. https://doi.org/10.24416/UU01-OT6YIY

Dates

Updated:

2024-07-12T11:07:31

Collected:

2017-05-23/2019-09-25

Language

en

Funding References

Funder name: Nederlandse Aardolie Maatschappij B.V. (NAM) - Studies on fault (re)activation and dynamic friction and failure behavior

Funder name: European Research Council - SEISMIC

Funder name: Netherlands Organization for Scientific Research (NWO) - VIDI grant

Rights

Open - freely retrievable

Creative Commons Attribution 4.0 International Public License

Datacite version

1.0