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Metadata Files

Data Publication

Experimental data of analogue models addressing the influence of oblique convergence and inheritance on sliver tectonics

Suárez, Rodrigo Javier | Guillaume, Benjamin | Martinod, Joseph | Ghiglione, Matías | Sue, Christian | Kermarrec, Jean-Jacques

GFZ Data Services

(2022)

Descriptions

This dataset includes video sequences depicting the evolution in map view and lateral view of 7 analogue experiments studying mantle-scale subduction systems. The experiments are performed under a natural gravity field and are designed to understand the role of convergence obliquity on upper plate deformation and partitioning, with a particular emphasis on the role played by lithospheric inherited structures on the development of sliver tectonics. All experiments were performed at the Laboratory of Tectonic modelling of the University of Rennes 1 (France). The experimental set-up corresponds to a lithosphere and sub-lithospheric upper mantle system. The lithospheric plates are simulated with PDMS silicone (Polydimethylsiloxane Silicone) with different viscosities and densities, and the upper mantle with glucose syrup. In particular, for the overriding plate, we simulate the presence of a weaker volcanic arc that can eventually be decoupled from the forearc by a pre-existing discontinuity. The materials are placed into a Plexiglas tank, where the impermeable bottom of the tank represents the 660 km discontinuity. The subduction is initiated by manually forcing the slab into the mantle and it then evolves under the combined effects of internal buoyancy forces (slab pull) and external boundary forces. The subducting plate is pushed toward the trench at a constant velocity of 1.5 cm/min while the overriding plate is maintained fixed during the duration of the experiments. The evolution of the experiments is monitored by DSLR cameras (24 Mpx) taking pictures every 30 seconds at the top and on one side of the experiments. Pictures are then assembled into video-sequences. The scale bar, with black & white rectangles corresponds to 10 cm. The set of experiments consists of one reference model (MODEL-01) with orthogonal convergence, and six models with oblique convergence (Table 1). Among these models, three do not embed a pre-existing lithospheric discontinuity in the overriding plate (MODEL-02, MODEL-03, and MODEL-04) while the three other (MODEL-05, MODEL-06, and MODEL-07) have such a discontinuity. For the models with oblique convergence, we vary the angle between the convergence direction and the trench from 80° (MODEL-02 and MODEL-05) to 60° (MODEL-03 and MODEL-06) and 50° (MODEL-04 and MODEL-07). For details on the experimental set-up, and interpretation of the results, please refer to Suárez et al. (submitted to Tectonophysics) to which these data are supplementary material.

Keywords


Originally assigned keywords
Subduction experiments
Trench-oblique convergence
Analogue models
Sliver tectonics
Vorticity number
Strike-slip
Thrusting
Cenozoic times
Patagonian Andes
Inherited anisotropies
Lithospheric strain
Slab dip variations
PIVLab software
Trac-Trac software
SSPX software
Strain tensor
Subduction dynamics
Fold and thrust belt
Interplate friction
Strain partitioning
Shear force
Trench-parallel motion
Liquiñe-Ofqui fault system
Slab roll-back
Trench retreat
Nazca plate
Traiguén basin
Chile triple junction
EPOS
multi-scale laboratories
analogue models of geologic processes
property data of analogue modelling materials
analogue modelling results
software tools
deformation > ductile flow
Density
Digital Image Correlation (DIC) / Particle Image Velocimetry (PIV)
Digital Image Correlation (DIC) / Particle Image Velocimetry (PIV) > Matlab code
Digital Image Correlation (DIC) / Particle Image Velocimetry (PIV) > PIVlab
earth interior setting > mantle setting
EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS > CRUSTAL MOTION
EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS > FAULT MOVEMENT
EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS > LITHOSPHERIC PLATE MOTION
EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS > PLATE BOUNDARIES
EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS > STRAIN
fault
fault > strike-slip fault
Golden syrup
Matlab (Mathworks)
Silicon/Silly putty/PDMS
SLR camera
Subduction box
tectonic process > subduction
tectonic setting > plate margin setting > subduction zone setting
Time lapse camera
trench
Viscosity

Corresponding MSL vocabulary keywords
Cenozoic
PIV - PIVlab
strain tensor
strain partitioning
slab roll-back
trench retreat
glucose syrup
Matlab (Mathworks)
camera
subduction box
trench
viscosity
viscosity

MSL enriched keywords
Phanerozoic
Cenozoic
Software
digital image correlation (DIC)
particle image velocimetry (PIV)
PIV - PIVlab
Inferred deformation behavior
deformation behaviour
strain tensor
Measured property
strain
strain partitioning
tectonic plate boundary
convergent tectonic plate boundary
subduction
slab roll-back
trench retreat
analogue modelling material
viscous modelling material
organic viscous material
glucose syrup
Matlab (Mathworks)
Ancillary equipment
model surface monitoring (2D)
camera
Apparatus
analogue modelling
deformation experiments
subduction box
trench
viscosity
Measured property
viscosity
synthetic viscous material
silicone
volcanic arc
Earth's structure
Earth mantle
upper mantle
660 km discontinuity
lithosphere

MSL enriched sub domains i

analogue modelling of geologic processes
rock and melt physics

Source

https://dataservices.gfz-potsdam.de/panmetaworks/showshort.php?id=2f443128-b00a-11ec-a8b4-7d2338b1cdf0

Source publisher

GFZ Data Services


DOI

10.5880/fidgeo.2022.013


Creators

Suárez, Rodrigo Javier

Instituto de Estudios Andinos (Universidad de Buenos Aires - CONICET), Buenos Aires, Argentina.

Guillaume, Benjamin

Université de Rennes, CNRS, Géosciences Rennes, Géosciences Rennes, Rennes, France

ORCID:

https://orcid.org/0000-0002-4260-3155

Martinod, Joseph

ISTerre, Université de Savoie Mont-Blanc, Le Bourget du Lac cedex, France

ORCID:

https://orcid.org/0000-0003-0891-5232

Ghiglione, Matías

Instituto de Estudios Andinos (Universidad de Buenos Aires - CONICET), Buenos Aires, Argentina.

Sue, Christian

Chrono-environnement, CNRS-UMR6249, Université de Franche-Comté, Besançon cedex, France

ORCID:

https://orcid.org/0000-0002-2472-5001

Kermarrec, Jean-Jacques

Université de Rennes, CNRS, Géosciences Rennes, Géosciences Rennes, Rennes, France


Contributors

Suárez, Rodrigo Javier

ContactPerson

Instituto de Estudios Andinos (Universidad de Buenos Aires - CONICET), Buenos Aires, Argentina.

Suárez, Rodrigo Javier

Researcher

Instituto de Estudios Andinos (Universidad de Buenos Aires - CONICET), Buenos Aires, Argentina.

Guillaume, Benjamin

ContactPerson

Université de Rennes, CNRS, Géosciences Rennes, Géosciences Rennes, Rennes, France

ORCID:

https://orcid.org/0000-0002-4260-3155

Guillaume, Benjamin

Researcher

Université de Rennes, CNRS, Géosciences Rennes, Géosciences Rennes, Rennes, France

ORCID:

https://orcid.org/0000-0002-4260-3155

Martinod, Joseph

Researcher

ISTerre, Université de Savoie Mont-Blanc, Le Bourget du Lac cedex, France

ORCID:

https://orcid.org/0000-0003-0891-5232

Ghiglione, Matías

Researcher

Instituto de Estudios Andinos (Universidad de Buenos Aires - CONICET), Buenos Aires, Argentina.

Sue, Christian

Researcher

Chrono-environnement, CNRS-UMR6249, Université de Franche-Comté, Besançon cedex, France

ORCID:

https://orcid.org/0000-0002-2472-5001

Kermarrec, Jean-Jacques

RelatedPerson

Université de Rennes, CNRS, Géosciences Rennes, Géosciences Rennes, Rennes, France

Grmodel-Laboratoire De Modélisation Analogique Géosciences Rennes (CNRS-Rennes 1 University, France)

HostingInstitution

CNRS-Rennes 1 University, Rennes, France

labid:

09e434194091574963c80f83d586875d

Suárez, Rodrigo Javier

ContactPerson

Instituto de Estudios Andinos (Universidad de Buenos Aires - CONICET), Buenos Aires, Argentina.

Guillaume, Benjamin

ContactPerson

University of Rennes, CNRS, Géosciences Rennes, UMR 6118, Rennes, France


References


Citation

Suárez, R. J., Guillaume, B., Martinod, J., Ghiglione, M., Sue, C., & Kermarrec, J.-J. (2022). Experimental data of analogue models addressing the influence of oblique convergence and inheritance on sliver tectonics [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2022.013


Dates

Issued:

2022


Rights

Creative Commons Attribution 4.0 International


Geo location(s)

Location of subduction experiments along the Patagonian Andes


Spatial coordinates