Data supplement to: New analogue materials for nonlinear lithosphere rheology, with an application to slab break-off

Abstract

This dataset provides strain and strain rate data on mixtures of plasticine, silicone oils and iron powder that has been used in slab break-of analogue experiments in the Tectonic Laboratory (TecLab) at Utrecht University (NL) as an analogue for viscously deforming lithosphere. The materials have been analyzed in a creep and recovery test, applying a parallel plate setup using an AR-G2 rheometer (by TA Instruments).


The materials can in general be described as viscoelastic materials with a power-law rheology (see previous work on plasticine-silicone polymer mixtures Weijermars [1986], Sokoutis [1987], Boutelier et al. [2008]). For a couple of the tested materials we find a complementary Newtonian behavior at the low end of the tested stress levels, with a transition to power-law behavior at increasing stress. Furthermore, the materials exhibit elastic and anelastic (recoverable) deformation. The corresponding paper (Broerse et al., 2018) describes the rheology, while this supplement describes the raw data and important details of the measurement setup. The raw data concerns mostly (uncorrected) strain and strain rate data. The rheometry has been performed at the Advanced Soft Matter group at the Department of Chemical Engineering, Delft University of Technology, The Netherlands.

Authors

• Broerse, Taco;Utrecht University, Utrecht, The Netherlands
• Norder, Ben;Delft University of Technology, Delft, The Netherlands
• Picken, Stephen;Delft University of Technology, Delft, The Netherlands
• Govers, Rob;Utrecht University, Utrecht, The Netherlands
• Willingshofer, Ernst;Utrecht University, Utrecht, The Netherlands
• Sokoutis, Dimitrios;Utrecht University, Utrecht, The Netherlands

Contact

• Broerse, Taco; Utrecht University, Utrecht, The Netherlands;

Contributors

TecLab - Tectonic Modelling Laboratory (Utrecht University, The Netherlands)

Keywords

analogue models of geologic processes, EPOS, Multi-scale laboratories, power-law rheology, on-linear rheology, anelasticity, plasticine, silicone polymer, rheology, PDMS, Iron Powder, Plasticine, Silicon/Silly putty/PDMS, Rheometer, Shear modulus, Viscosity, Iron Powder, Plasticine, Rheometer, Shear modulus, Silicon/Silly putty/PDMS, Viscosity

GCMD Science Keywords

• EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS > STRAIN