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Acceleration of slip motion in deep extensions of seismogenic faults in and below the seismogenic region
Earth, Planets and Space volume 54, pages1195–1205(2002)
This paper addresses concepts presented in Session 7 of the conference on “Slip and Flow Processes Near the Base of the Seismogenic Zone” held at Sendai, Japan in November, 2001. The questions raised in this session were associated with the downward extensions of seismic faults into the lower crust. The important issue is whether asiesmic slip accelerates on downward extensions prior to large earthquakes on the upper, seismic part. If this is the case, then such movement may be measurable as a precursor to large seismic events as accelerated tilt and/or distortion at the surface. Associated issues involve the geometry of downward extensions of faults, the mechanisms of localisation in the lower crust, and the mechanisms for earthquake generation near the base of the upper crust. The outcomes from this session are that aseismic slip in the lower crust could be generated by several mechanisms of localisation including yield of an elastic-viscous-plastic material, softening (including, in particular, thermal softening) of an elastic-viscous material and ductile fracture. Fine scale modelling of localisation in the lower crust is still required to resolve the issue whether accelerated motion precedes seismic slip in the upper crust. Such modelling also demands a better understanding of crustal rheology than we have at present.
Anand, L., K. H. Kim, and T. G. Shawki, Onset of shear localization in viscoplastic solids, J. Mech. Phys. Solids, 35(4), 407–429, 1987.
Ashby, M. F. and D. R. H. Jones, Engineering Materials 2, Pergamon Press, Oxford, 1986.
Backofen, W. A., Deformation Processing, 326 pp., Addison-Wesley, 1972.
Bird, P., Initiation of intracontinental subduction in the Himalaya, J. Geophys. Res., 83, 4975–4987, 1978.
Branlund, J., K. Regenauer-Lieb, and D. A. Yuen, Fast ductile failure of passive margins for sediment loading, Geophys. Res. Lett., 25(13), 1989–1992, 2000.
Brewer, J. A. and D. K. Smythe, MOIST and the continuity of crustal reflector geometry along the Caledonian-Appalachian orogen, J. Geol. Soc. London, 141, 105–120, 1984.
Byerlee, J. D., Theory of friction based on brittle fracture, J. Appl. Phys., 38, 2928–2934, 1967.
Carter, N. L. and M. C. Tsenn, Flow properties of continental lithosphere, Tectonophys., 136, 27–63, 1987.
Cherukuri, H. P. and T. G. Shawki, An energy-based localization theory: 1. Basic Framework, Int. Journ. Plasticity, 11(1), 15–40, 1995a.
Cherukuri, H. P. and T. G. Shawki, An energy-based localization theory: II. Effects of diffusion, inertia and dissipation numbers, Int. Journ. Plasticity, 11(1), 41–64, 1995b.
Chopra, P. N. and M. S. Paterson, The experimental deformation of dunite, Tectonophys., 78, 453–473, 1981.
Cox, S. F., Deformational controls on the dynamics of fluid flow in mesothermal gold systems, in Fractures, Fluid Flow and Mineralization, edited by K. McCaffrey, L. Lonergan, and J. Wilkinson, Geological Society, London, Special Publications, 155, 123–140, 1999.
Cox, S. F., Fluid flow in mid-to deep crustal shear systems: Experimental constraints, observations on exhumed high fluid flux shear systems, and implications for seismogenic processes, Earth Planets Space, 54, this issue, 1121–1125, 2002.
Cundall, P. A. and M. Board, A microcomputer program for modelling large-strain plasticity problems, Proc. 6th International conf. On Numerical Methods in Geomechanics, Balkema, Rotterdam, 2101–2108, 1988.
Dieterich, J. H., Modelling of rock friction: 1. Experimental results and constitutive equations, J. Geophys. Res., 84, 2161–2168, 1979.
Dieterich, J. H., Constitutive properties of faults with simulated gouge, in Mechanical Behaviour of Crustal Rocks: The Handin Volume, Geophys. Monogr. 24, edited by N. L. Carter et al., pp. 103–120, AGU, Washington D.C., 1981.
Estrin, Y. and Y. Brechet, On a model of frictional sliding, PAGEOPH, 147, 4, 1996.
Goetze, C. and B. Evans, Stress and temperature in the bending lithosphere as constrained by experimental rock mechanics, Geophys. J. R. Astron. Soc., 59, 463–478, 1979.
Goleby, B. R., R. D. Shaw, C. Wright, B. L. N. Kennett, and K. Lambeck, Geophysical evidence of ‘thick-skinned’ crustal deformation in central Australia, Nature, 337, 325–330, 1989.
Gu, J.-C., J. R. Rice, A. I. Ruina, and S. T. Tse, Slip motion and stability of a single degree of freedom elastic system with rate and state dependent friction, J. Mech. Phys. Solids, 32, 167–196, 1984.
Hobbs, B. E. and A. Ord, Plastic instabilities—implications for the origin of intermediate and deep focus earthquakes, J. Geophys. Res., 93, 10521–10540, 1988.
Hobbs, B. E., A. Ord, and C. Teyssier, Earthquakes in the ductile regime?, PAGEOPH, 124, 1/2, 1986.
Hobbs, B. E., H.-B. Muhlhaus, and A. Ord, Instability, softening and localization of deformation, in Deformation Mechanisms, Rheology and Tectonics, edited by R. J. Knipe and E. H. Rutter, Geol. Soc. Spec. Pub., 54, 143–165, 1990.
Hobbs, B. E., H.-B. Muhlhaus, A. Ord, and L. N. Moresi, The influence of chemical migration upon fold evolution in multi-layered materials, in Selbstorganisation. Band II. Non-equilibrium processes and dissipative structures in geoscience, edited by H.-J. Krug and J. H. Kruhl, Duncker & Humblot, Berlin, pp. 229–252, 2000.
Iio, Y. and Y. Kobayashi, A physical understanding of large intraplate earthquakes, Earth Planets Space, 54, this issue, 1001–1004, 2002. Jaeger, J. C., Elasticity, Fracture and Flow, Methuen & Co., London, 268 pp., 1969.
Kameyama, M., On the relevance of thermal viscous coupling as a model of frictional constitute relationship, Tectonophys., February, 2002 (submitted).
Kameyama, M. and Y. Kaneda, Thermal-mechanical coupling in shear deformation of viscoelastic material as a model of frictional constitutive relations, Pure Appl. Geophys., 2001 (in press).
Linde, A. T., K. Suyehiro, S. Miura, I. S. Sacks, and A. Takagi, Episodic aseismic earthquake precursors, Nature, 334, 513–515, 1988.
Miller, S. and A. Nur, Permeability as a toggle switch in fluid-controlled crustal processes, Earth Plan. Sci. Lett, 183, 133–146, 2000.
Moresi, L. and V. Solomatov, Mantle convection with a brittle lithosphere: thoughts on the global tectonic styles of the Earth and Venus, Geophys. J. Int., 133, 669–682, 1998.
Moresi, L., F. Dufour, and H. Muhlhaus, Mantle convection models with viscoelastic/brittle lithosphere: Numerical methodology and plate tectonic modeling, PAGEOPH, 2001 (in press).
Ogawa, M., Shear instability in a viscoelastic material as the cause of deep focus earthquakes, J. Geophys. Res., 92, 13801–13810, 1987.
Ord, A. and B. E. Hobbs, The strength of the continental crust, detachment zones and the development zones and the development of plastic instabilities, Tectonophys., 158, 269–289, 1989.
Paterson, M. S., Experimental Rock Deformation—The Brittle Field, edited by W. von Engelhardt, Tubingen — T. Hahn, Aachen, Springer-Verlag, 1978.
Poirier, J. P., Shear localization and shear instability in materials in the ductile field, J. Struct. Geol., 2, 135–142, 1980.
Poirier, J., J. L. Bouchez, and J. J. Jonas, A dynamic model for aseismic ductile shear zones, Earth Planet. Sci. Lett, 43, 441–453, 1979.
Ramsay, J. G., Folding and fracturing of rocks, 568 pp., Ed. Frank Press, MacGraw-Hill, 1974.
Regenauer-Lieb, K., Dilatant plasticity applied to Alpine Collision: ductile void growth in the intraplate area beneath the Eifel Volcanic Field, J. Geodynam., 27, 1–21, 1999.
Regenauer-Lieb, K. and D. A. Yuen, Fast mechanisms for the formation of new plate boundaries, Tectonophys., 322, 53–67, 2000a.
Regenauer-Lieb, K. and D. Yuen, Quasi-adiabatic instabilities associated with necking processes of an elasto-viscoplastic lithosphere, Physics of the Earth and Planetary Interiors, 118, 89–102, 2000b.
Regenauer-Lieb, K., D. A. Yuen, and J. Branlund, The initiation of Subduction: Criticality by addition of water, Science, 294, 578–580, 2001.
Reinen, L. A., Slip styles in a spring-slider model with a laboratory-derived constitute law for serpentinite, Geophys. Res. Lett, 27(14), 2037–2040, 2000.
Reinen, L. A., J. D. Weeks, and T. E. Tullis, The frictional behaviour of lizardite and antigorite serpentinites; experiments, constitutive models, and implications for natural faults, Pure Appl. Geophys., 143, 317–358, 1994.
Reston, T. J., Mantle shear zones and the evolution of the northern North Sea basin, Geology, 18, 272–275, 1990.
Rice, J. A., N. Lapusta, and K. Ranjith, Rate and state dependent friction and the stability of sliding between elastically deformable solids, J. Mech. Phys. Solids, 49, 1865–1898, 2001.
Rudniki, J. W. and J. R. Rice, Conditions for the localization of deformation in pressure-sensitive dilatant materials, J. Mech. Phys. Solids, 23, 371–394, 1975.
Ruina, A. L., Slip instability and state variable friction laws, J. Geophys. Res., 88, 10359–10370, 1983.
Rutter, E. H., On the relationship between the formation of shear zones and the form of the flow law for rocks undergoing dynamic recrystallization, Tectonophys., 303, 147–158, 1999.
Sacks, I. S., A. T. Linde, J. A. Snoke, and S. Suyehiro, A slow earthquake sequence following the Izu-Oshima Earthquake of 1978, in Earthquake Prediction: An International Review, edited by D. W. Simpson and P. G. Richards, Maurice Ewing Series, 4, AGU, 617–628, 1981.
Shawki, T. G. and R. J. Clifton, Shear band formation in thermal viscoplastic materials, Mech. of Materials, 8, 13–43, 1989.
Shelton, G. and J. Tullis, Experimental flow laws for crustal rocks, EOS Trans. Am. Geophys. Union, 62, 396, 1981.
Shibazaki, B., H. Tanaka, H. Horikawa, and Y. Iio, Modeling slip processes at the deeper part of the seismogenic zone using a constitutive law combining friction and flow laws, Earth Planets Space, 54, this issue, 1211–1218, 2002.
Shigematsu, N., K. Fujimoto, and T. Ohtani, Plastic deformation and fracturing: a case study in the Hatagawa Fault Zone, Proceedings of the International Symposium on Slip and Flow Processes in and below the Seismogenic Region, Sendai, Japan, 2001.
Sibson, R. H., F. Robert, and K. H. Poulson, High-angle reverse faults, fluid-pressure cycling, and mesothermal gold deposits, Geology, 16, 551–555, 1988.
Tanaka, H., B. Shibazaki, N. Shigematsu, K. Fujimoto, T. Ohtani, Y. Miyashita, T. Tomita, K. Omura, Y. Kobayashi, and J. Kameda, Growth of plastic shear zone and its duration inferred from theoretical consideration and observation of an ancient shear zone in the granitic crust, Earth Planets Space, 54, this issue, 1207–1210, 2002.
Umino, N., H. Ujikawa, S. Hori, and A. Hasegawa, Distinct S-wave reflectors (bright spots) detected beneath the Nagamachi-Rifu fault, NE Japan, Earth Planets Space, 54, this issue, 1021–1026, 2002.
Vermeer, P. A. and R. de Borst, Non-associated plasticity for soils, concrete and rock, Heron, 29, 1–62, 1984.
White, S. H. and P. G. Bretan, Rheological controls on the geometry of deep faults and the tectonic delamination of the continental crust, Tectonics, 4, 303–309, 1985.
Zhu, L., Crustal structure across the San Andreas Fault, Southern California from teleseismic converted waves, Earth Planet. Sci. Lett., 179, 183–190, 2000.
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Hobbs, B.E., Tanaka, H. & Iio, Y. Acceleration of slip motion in deep extensions of seismogenic faults in and below the seismogenic region. Earth Planet Sp 54, 1195–1205 (2002). https://doi.org/10.1186/BF03353320
- Shear Zone
- Lower Crust
- Ductile Fracture
- Constitutive Behaviour
- Thermal Softening