Thermal-mechanical effects of low-temperature plasticity (the Peierls mechanism) on the deformation of a viscoelastic shear zone

Kameyama, Masanori; Yuen, David A.; Karato, S.

doi:10.1016/s0012-821x(99)00040-0

Cited by 218 publications

(140 citation statements)

References 34 publications

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“…The total viscous strain rate is additively decomposed into three temperature-and stress-dependent creep mechanisms, namely diffusion creep, dislocation creep and Peierls creep (see e.g. Kameyama et al, 1999). The corresponding effective creep viscosity is given by:…”

Section: Ductile Creepmentioning

confidence: 99%

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SLIM3D: A tool for three-dimensional thermomechanical modeling of lithospheric deformation with elasto-visco-plastic rheology

Popov

Sobolev

2008

Physics of the Earth and Planetary Interiors

187

159

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We describe a new technique for three-dimensional lithospheric-scale modeling of solid state deformation including strain localization processes. The new code, SLIM3D, includes a coupled thermo-mechanical treatment of deformation processes and allows for an elasto-visco-plastic rheology with diffusion, dislocation and Peierls creep mechanisms and Mohr-Coulomb plasticity. The code incorporates an Arbitrary Lagrangian Eulerian formulation with free surface and Winkler boundary conditions. SLIM3D is developed and implemented using the C++ objectoriented programming language. We describe aspects of physical models as well as details of the numerical implementation, including the Newton-Raphson solver, the stress update procedure, and the tangent operator. The applicability of the code to lithospheric-scale modeling is demonstrated by a number of benchmark problems that include: (i) the bending of an elastic plate, (ii) the sinking of a rigid cylinder into a viscous fluid, (iii) the initiation of shear bands in the brittle crust, (iv) triaxial compression test, and (v) lithospheric transpressional deformation. Finally, we discuss possible directions of further development.

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Section: Ductile Creepmentioning

confidence: 99%

“…log eff η Figure 1 Logarithm of effective viscosity for dry olivine calculated using parameters from Kameyama et al (1999). Temperature-stress domains in which each particular creep mechanism produces the largest strain rate are labeled.…”

Section: Ductile Creepmentioning

confidence: 99%

SLIM3D: A tool for three-dimensional thermomechanical modeling of lithospheric deformation with elasto-visco-plastic rheology

Popov

Sobolev

2008

Physics of the Earth and Planetary Interiors

187

159

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“…Here, G is the elastic shear modulus, dt d ij  -Jaumann co-rotational deviatoric stress rate, and η eff is effective viscosity (Kameyama et al, 1999), including three competing creep mechanisms: diffusion, dislocation and Peierls creep. The M a n u s c r i p t 7 mechanism that produces the highest viscous strain rate becomes the dominant creep mechanism at a given temperature and stress:…”

Section: Page 6 Of 53mentioning

confidence: 99%

“…(1) Gleason and Tullis (1995) (2) Rybacki and Dresen (2000) (3) Hirth and Kohlstedt (1996) Source for diffusion and Peierls' creep laws in mantle: Kameyama et al (1999).…”

Section: Figure Captionsmentioning

confidence: 99%

Three-dimensional numerical models of the evolution of pull-apart basins

Petrunin¹,

Sobolev²

2008

Physics of the Earth and Planetary Interiors

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To cite this version:A.G. Petrunin, S.V. Sobolev. Three-dimensional numerical models of the evolution of pullapart basins. Physics of the Earth and Planetary Interiors, Elsevier, 2008, 171 (1-4) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.Page 1

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“…Here we explore an alternative view that material strength might not be instantaneously restored to its full pre-yielded value and acknowledge that the geological material may have been weakened as a result. We use a computationally efficient way of parameterizing the effective viscosity that may result due to any number of mechanisms that may be active subsequent to leaving the high stress bending region, including the development of weakened tectonic fabrics or subgrid faults in the lithosphere, in addition to the possible activation of Peierls creep, damage rheology, or other non-Newtonian rheologies (Kameyama et al, 1999;Bercovici, 2003;Garel et al, 2014;Bercovici et al, 2015;Holt et al, 2015a).…”

Section: Rheologymentioning

confidence: 99%

The subduction dichotomy of strong plates and weak slabs

2017

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Abstract. A key element of plate tectonics on Earth is that the lithosphere is subducting into the mantle. Subduction results from forces that bend and pull the lithosphere into the interior of the Earth. Once subducted, lithospheric slabs are further modified by dynamic forces in the mantle, and their sinking is inhibited by the increase in viscosity of the lower mantle. These forces are resisted by the material strength of the lithosphere. Using geodynamic models, we investigate several subduction models, wherein we control material strength by setting a maximum viscosity for the surface plates and the subducted slabs independently. We find that models characterized by a dichotomy of lithosphere strengths produce a spectrum of results that are comparable to interpretations of observations of subduction on Earth. These models have strong lithospheric plates at the surface, which promotes Earth-like single-sided subduction. At the same time, these models have weakened lithospheric subducted slabs which can more easily bend to either lie flat or fold into a slab pile atop the lower mantle, reproducing the spectrum of slab morphologies that have been interpreted from images of seismic tomography.

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Thermal-mechanical effects of low-temperature plasticity (the Peierls mechanism) on the deformation of a viscoelastic shear zone

Cited by 218 publications

References 34 publications

SLIM3D: A tool for three-dimensional thermomechanical modeling of lithospheric deformation with elasto-visco-plastic rheology

SLIM3D: A tool for three-dimensional thermomechanical modeling of lithospheric deformation with elasto-visco-plastic rheology

Three-dimensional numerical models of the evolution of pull-apart basins

The subduction dichotomy of strong plates and weak slabs

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