Rehbinder effect in tectonophysics

Traskin, V. Yu.

doi:10.1134/s1069351309110032

Cited by 21 publications

(7 citation statements)

References 14 publications

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“…Recent studies suggest that even in the brittle, subcritical fracture of siliceous glass at room temperature there is a plastic process zone affected by water (Bonamy et al, 2006). A suggested mechanism applicable to salts (Skvortsova, 2004) and other minerals (Traskin, 2009;Traskin et al, 1998) is the so-called Rehbinder effect (Rehbinder and Shchukin, 1972). The original work of Rehbinder in the 1930s was refuted by Andrade et al (1950) and has since not been mentioned outside Russian scientific literature.…”

Section: -1-1-1 Plasticity: Naclmentioning

confidence: 99%

The Role of Pressure Solution Creep in the Ductility of the Earth’s Upper Crust

Gratier

Dysthe

Renard

2013

Advances in Geophysics

248

274

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The aim of this review is to characterize the role of pressure solution creep in the ductility of the Earth's upper crust and to describe how this creep mechanism competes and interacts with other deformation mechanisms. Pressure solution creep is a major mechanism of ductile deformation of the upper crust, accommodating basin compaction, folding, shear zone development, and fault creep and interseismic healing. However, its kinetics is strongly dependent on the composition of the rocks (mainly the presence of phyllosilicates minerals that activate pressure solution) and on its interaction with fracturing and healing processes (that activate and slow down pressure solution, respectively).The present review combines three approaches: natural observations, theoretical developments, and laboratory experiments. Natural observations can be used to identify the pressure solution markers necessary to evaluate creep law parameters, such as the nature of the material, the temperature and stress conditions or the geometry of mass transfer domains. Theoretical developments help to investigate the thermodynamics and kinetics of the processes and to build theoretical creep laws.Laboratory experiments are implemented in order to test the models and to measure creep law parameters such as driving forces and kinetic coefficients. Finally, applications are discussed for the modelling of sedimentary basin compaction and fault creep. The sensitivity of the models to time is given particular attention: viscous versus plastic rheology during sediment compaction; steady state versus non-steady state behaviour of fault and shear zones. The conclusions discuss recent advances for modelling pressure solution creep and the main questions that remain to be solved. -IntroductionIn order to investigate the role of pressure solution creep in the ductility of the Earth's upper crust the various mechanical behaviour patterns of the upper crust must first be discussed. Two types of approach can be considered on this topic.1 -The mechanical behaviour of the upper crust is modelled using brittle theories, that include friction laws (Byerlee, 1978;Marone, 1998). This modelling approach is supported by two kinds of observations: (i) the maximum frequency of earthquakes is located within the first 15-20 km of the upper crust (Chen and Molnar, 1983;Sibson, 1982); (ii) laboratory experiments run at relatively fast strain-rates (faster than 10 -7 s -1 ) indicate a transition from frictional to plastic deformation at pressure and temperature conditions appropriate for a depth of 10-20 km (Kohlstedt et al., 1995;Paterson, 1978;Poirier, 1985).2 -Conversely, the behaviour of the upper crust is also modelled by ductile behaviour with creep laws (Wheeler, 1992). This modelling approach is supported by two kinds of observations: (i) geological structures exhumed from depth, such as compacted basin, folds and shear zones, and regional cleavage, indicate ductile behaviour throughout the upper crust (Argand, 1924;Hauck et al., 1998;Schmidt et al., 1996) (Fig. ...

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Section: -1-1-1 Plasticity: Naclmentioning

confidence: 99%

The Role of Pressure Solution Creep in the Ductility of the Earth’s Upper Crust

Gratier

Dysthe

Renard

2013

Advances in Geophysics

248

274

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“…The experimental evidence between material strength and physiochemical surface effects dates back to experiments performed in the 1920s by P. A. Rehbinder [Andrade et al, 1950]. Rehbinder showed that surface active agents (or any molecules reducing the surface energy of a solid, typically water molecules on ionic and ionic-covalent crystal matter) assist externally applied loads in deforming or fracturing the material [Rehbinder and Shchukin, 1972;Traskin, 2009]. Based on this line of argument, we surmise that chemically induced compaction has both a time-dependent component (as it takes time for dissolution and precipitation to change the volume of solids) and a time-independent component that occurs faster (from the disjoining pressure that induces additional compaction by rapid reduction of the pore volume).…”

Section: Introductionmentioning

confidence: 99%

Porosity and permeability development in compacting chalks during flooding of nonequilibrium brines: Insights from long‐term experiment

et al. 2015

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We report the complete chemical alteration of a Liège outcrop chalk core resulting from a 1072 flow-through experiment performed during mechanical compaction at 130°C. Chemical rock-fluid interactions alter the volumetric strain, porosity, and permeability in a nontrivial way. The porosity reduced only from 41.32% to 40.14%, even though the plug compacted more than 25%. We present a novel analysis of the experimental data, which demonstrates that the geochemical alteration does not conserve the volume of the solids, and therefore, the strain is partitioned additively into a pore volume and solid volume component. At stresses beyond yield, the observed deformation can be explained by grain reorganization reducing the pore space between grains and solid volume changes from the rock-fluid interactions. The mechanical and chemical effects are discussed in relation to the observed permeability development.

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“…Hereby surface energy is reduced along the diffusion front in the subcritically stressed wetted region around the notch (Bergsaker et al, ; Darot & Gueguen, ). In porous calcite rocks the diffusion of water relates to an overall decrease in cohesion of grain boundaries and interfaces (Risnes et al, ; Røyne et al, ); a common behavior also observed in steels and single crystals (Malkin, ; Maugis, ; Rehbinder & Shchukin, ; Traskin, ). Strain rates gradually decrease and the strain levels stabilize 12 to 30 hr after the onset of water dripping (Figure ).…”

Section: Discussionmentioning

confidence: 98%

Subcritical Crack Growth and Progressive Failure in Carrara Marble Under Wet and Dry Conditions

2018

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Our concept of progressive rock slope failures is on the one hand embedded in aggregated subcritical crack growth mechanisms and on the other sensitive to environmental conditions, especially water. To anticipate failure dynamics in rock slopes, it is a key requirement to reveal the influence of water on subcritical crack growth mechanisms and material properties. We present experimental data on the time-dependent deformation of an exemplary rock, Carrara marble. We employed inverted single-edge notch bending creep tests on large Carrara marble samples to mimic an open joint system with controlled water supply. Constant stress was applied in two steps approaching 22-85% of a previously determined critical baseline stress. Introducing calcite-saturated water to subcritical stressed samples caused an immediate increase in strain by up to an order of magnitude. Time-dependent accumulation of inelastic damage at the notch tip occurred in wet and dry samples at all load levels. Subcritical crack growth and the evolution of localized intergranular fractures are enhanced if water is present and readily approach tertiary creep when loaded above 80%. The immediate strain response is attributed to the reduction of surface energy and diffusion of the water into the rock. The resultant more compliant and weaker rheology can even turn the subcritical stress into a critical state. Over time, subcritical and chemically enhanced mechanisms progressively alter especially grain boundaries, which become the key controls of progressive failure in Carrara marble. 1986; Withers, 2015; Figure 1b). These intermittent stress-dependent dynamics lead to a local competition VOIGTLÄNDER ET AL. 3780

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Rehbinder effect in tectonophysics

Cited by 21 publications

References 14 publications

The Role of Pressure Solution Creep in the Ductility of the Earth’s Upper Crust

The Role of Pressure Solution Creep in the Ductility of the Earth’s Upper Crust

Porosity and permeability development in compacting chalks during flooding of nonequilibrium brines: Insights from long‐term experiment

Subcritical Crack Growth and Progressive Failure in Carrara Marble Under Wet and Dry Conditions

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