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Roxerová, Zuzana; Machek, Matěj; Kusbach, Vladimír K; Vávrová, Anna (2022): AMS data and videodocumentation of shear zone analogue modelling in plaster of Paris with variable strain rate [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.949277

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Published: 2022-10-04 • DOI registered: 2022-11-08

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Abstract:
The analogue modelling of magnetic fabric in shear-zones was used to explore the time and space relationships between the finite strain and the anisotropy of magnetic susceptibility (AMS). A large shear-box was designed to enable different strain rates. The apparatus for analogue modelling of shear zones was designed in the form of a large shear box 100 cm long and 60 cm wide. In order to maintain the material complexity and to effectively realize the deformation localization coupled with an easy handling with the material, we have been working on experimental modelling using the plaster of Paris. The experiments were produced with the colored plaster of Paris with homogeneously admixed fine-grained magnetite and powder retarding the solidification reaction. Published data are from six experimental shear zones, as well as the basic simple and pure shear experiments. We publish four chosen experiments (and two additional) characterizing individual velocity range at standard displacement of 22.5 cm: fast experiments experiment #21 (6.4 cm.s-1) and experiment #25 (4.7 cm.s-1); medium velocity experiment #28 (2.7 cm.s-1) with its twin experiment #32 for reproducibility verification and slow experiment #37 (0.9 cm.s-1). Additional experiment #20 of the same speed as experiment #37 run only up to 13 cm displacement. The low field anisotropy of magnetic susceptibility was measured with the MFK1-FA Kappabridge (Jelínek and Pokorný, 1997) in the field of 423 A/m and for a F1 frequency of 976 Hz (Institute of Geophysics of the Czech Academy of Sciences).
Keyword(s):
AMS; analogue modelling; Magnetic susceptibility; shear zone; strain
Related to:
Roxerová, Zuzana; Machek, Matěj; Kusbach, Vladimír K; Vávrová, Anna (2023): Strain Localization: Analog Modeling and Anisotropy of Magnetic Susceptibility. Geochemistry, Geophysics, Geosystems, 24(2), e2022GC010630, https://doi.org/10.1029/2022GC010630
Further details:
Kusbach, Vladimír K: Compressed original *.ams files from freely available Anisoft software by AGICO https://www.agico.com/software.php. AMS_files.zip
Kusbach, Vladimír K: Compressed raw recordings of six shear zone experiments in the apparatus for analogue modelling (eg. large shear box 100 cm long and 60 cm wide). videofiles.zip
Funding:
Czech Science Foundation (GACR), grant/award no. 22-12828S: New perspectives in magnetic fabric interpretation through 3D microstructural analysis, numerical modelling and quantum mechanical description
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Sample code/labelSample labelKusbach, Vladimír K
2MaterialMaterialKusbach, Vladimír K
3ExperimentExpKusbach, Vladimír KType
4Coordinate, x, relativexarbitrary unitsKusbach, Vladimír K[mm], for shear zone experiments: trace of the basement fault of shear zone in same coordinate system defined by x coordinate 0; for pure shear experiments: horizontal centre of experiment in same coordinate system defined by x coordinate 0; for simple shear experiments: moving side of experiment in same coordinate system defined by x coordinate 0
5Coordinate, y, relativeyarbitrary unitsKusbach, Vladimír K
6Magnetic field strengthMag f strA/mKusbach, Vladimír K
7Operation modeOp modeKusbach, Vladimír KFrequency
8Magnetic susceptibilityMAGS10-6 SIKusbach, Vladimír K
9Anisotropy-magnetic susceptibility, factor L, lineationAMS factor LKusbach, Vladimír K
10Anisotropy-magnetic susceptibility, factor F, foliationAMS factor FKusbach, Vladimír K
11Anisotropy-magnetic susceptibility, factor P, anisotropy degreeAMS factor PKusbach, Vladimír K
12Anisotropy-magnetic susceptibility, factor PjAMS factor PjKusbach, Vladimír K
13Anisotropy-magnetic susceptibility, factor TAMS factor TKusbach, Vladimír K
14Anisotropy-magnetic susceptibility, factor UAMS factor UKusbach, Vladimír K
15Declination of principle axis K1D(Kmax)degKusbach, Vladimír K
16Inclination of principle axis K1I(Kmax)degKusbach, Vladimír K
17Declination of principle axis K2D(Kint)degKusbach, Vladimír K
18Inclination of principle axis K2I(Kint)degKusbach, Vladimír K
19Declination of principle axis K3D(Kmin)degKusbach, Vladimír K
20Inclination of principle axis K3I(Kmin)degKusbach, Vladimír K
21Description of symmetrical anisotropy of magnetic susceptibility tensorDesc AMS tensorKusbach, Vladimír KK11
22Description of symmetrical anisotropy of magnetic susceptibility tensorDesc AMS tensorKusbach, Vladimír KK22
23Description of symmetrical anisotropy of magnetic susceptibility tensorDesc AMS tensorKusbach, Vladimír KK33
24Description of symmetrical anisotropy of magnetic susceptibility tensorDesc AMS tensorKusbach, Vladimír KK12
25Description of symmetrical anisotropy of magnetic susceptibility tensorDesc AMS tensorKusbach, Vladimír KK23
26Description of symmetrical anisotropy of magnetic susceptibility tensorDesc AMS tensorKusbach, Vladimír KK13
27F-statistics of the test for anisotropyFtest_FKusbach, Vladimír KF
28F-statistics of the test for anisotropyFtest_FKusbach, Vladimír KF12
29F-statistics of the test for anisotropyFtest_FKusbach, Vladimír KF23
30Fitting error angle of the principal directionFit e angledegKusbach, Vladimír KF12
31Fitting error angle of the principal directionFit e angledegKusbach, Vladimír KF23
32Fitting error angle of the principal directionFit e angledegKusbach, Vladimír KF13
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
53836 data points

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