%0 Journal Article %1 Melosh1996 %A Melosh, H. J. %D 1996 %J Nature %K EARTHQUAKES; FAULT; FRICTION HEAT-FLOW; INSTABILITY; MECHANISM; MODEL; SAN-ANDREAS SCATTERING; SEPARATION; STRESS; %N 6566 %P 601--606 %T Dynamical weakening of faults by acoustic fluidization %V 379 %X When a fault slips seismically, some of the energy released may excite strong, short-wavelength vibrations near the fault core. Such vibrations can temporarily reduce the normal stress on the fault, allowing it to slip at lower shear stresses than predicted by laboratory coefficients of friction. This phenomenon of 'acoustic fluidization' provides an alternative to theories that invoke pressurized fluids as an explanation for why some faults appear to be so weak.

@article{Melosh1996, abstract = {When a fault slips seismically, some of the energy released may excite strong, short-wavelength vibrations near the fault core. Such vibrations can temporarily reduce the normal stress on the fault, allowing it to slip at lower shear stresses than predicted by laboratory coefficients of friction. This phenomenon of 'acoustic fluidization' provides an alternative to theories that invoke pressurized fluids as an explanation for why some faults appear to be so weak.}, added-at = {2009-11-03T20:21:25.000+0100}, author = {Melosh, H. J.}, biburl = {https://www.bibsonomy.org/bibtex/25d4aea610bbdf9a63001624df3f02d3e/svance}, citedreferences = {ANDERSON DL, 1989, THEORY EARTH ; BARKAN DD, 1962, DYNAMICS BASES F ; BERGE P, 1984, ORDER CHAOS ; BEROZA GC, 1990, J GEOPHYS RES-SOLID, V95, P2485 ; BLEKHMAN II, 1981, ADV THEORETICAL APPL, P127 ; BRUNE JN, 1969, J GEOPHYS RES, V74, P3821 ; BRUNE JN, 1970, J GEOPHYS RES, V75, P4997 ; BRUNE JN, 1993, TECTONOPHYSICS, V218, P59 ; BYERLEE J, 1978, PURE APPL GEOPHYS, V116, P615 ; BYERLEE J, 1993, Geology, V21, P303 ; CHESTER FM, 1993, J GEOPHYS RES-SOL EA, V98, P771 ; CRANDALL SH, 1973, RANDOM VIBRATION MEC ; DAINTY AM, 1974, MOON, V2, P11 ; DAINTY AM, 1977, J GEOPHYS, V43, P375 ; DAINTY AM, 1981, GEOPHYS RES LETT, V8, P1126 ; ENGELDER JT, 1974, GEOL SOC AM BULL, V85, P1515 ; FODA MA, 1991, P ROY SOC LOND A MAT, V435, P233 ; FRANKEL A, 1987, B SEISMOL SOC AM, V77, P1223 ; GOODMAN RE, 1968, J SOIL MECH F DIV AM, V94, P637 ; HEATON TH, 1990, PHYS EARTH PLANET IN, V64, P1 ; HENYEY TL, 1971, J GEOPHYS RES, V76, P7924 ; HICMAN SH, 1991, REV GEOPHYS S, P759 ; JAEGER JC, 1971, GEOTECHNIQUE, V21, P97 ; KANAMORI H, 1994, ANNU REV EARTH PL SC, V22, P207 ; LACHENBRUCH AH, 1980, J GEOPHYS RES, V85, P6185 ; LACHENBRUCH AH, 1992, J GEOPHYS RES-SOL EA, V97, P4995 ; LOCKNER DA, 1994, GEOPHYS RES LETT, V21, P2353 ; MELOSH HJ, 1979, GEOPHYS J ROY ASTRON, V59, P419 ; MELOSH HJ, 1979, J GEOPHYS RES, V84, P7513 ; MOUNT VS, 1987, Geology, V15, P1143 ; NAKAMURA Y, 1977, J GEOPHYS, V43, P389 ; ODEN JT, 1985, COMPUT METHOD APPL M, V52, P527 ; PRESS WH, 1986, NUMERICAL RECIPES AR ; RICE JR, 1992, FAULT MECH TRANSPORT, P475 ; RICHARDS R, 1990, J GEOTECH ENG-ASCE, V116, P740 ; RODGER AA, 1980, GEOTECHNIQUE, V30, P269 ; SCHOLZ CH, 1990, MECHANICS EARTHQUAKE ; SIBSON RH, 1986, PURE APPL GEOPHYS, V124, P159 ; SIBSON RH, 1994, PURE APPL GEOPHYS, V142, P645 ; SLEEP NH, 1992, Nature, V359, P687 ; WESSON RL, 1988, J GEOPHYS RES, V93, P8929 ; ZIK O, 1992, EUROPHYS LETT, V17, P315 ; ZOBACK MD, 1979, Science, V206, P45 ; ZOBACK MD, 1987, Science, V238, P1105 ; ZOBACK MD, 1992, J GEOPHYS RES-SOL EA, V97, P5039}, interhash = {4b81f10a00d7c7670b5677c84bbda0a3}, intrahash = {5d4aea610bbdf9a63001624df3f02d3e}, journal = {Nature}, keywords = {EARTHQUAKES; FAULT; FRICTION HEAT-FLOW; INSTABILITY; MECHANISM; MODEL; SAN-ANDREAS SCATTERING; SEPARATION; STRESS;}, number = 6566, owner = {svance}, pages = {601--606}, timestamp = {2009-11-03T20:22:03.000+0100}, title = {Dynamical weakening of faults by acoustic fluidization}, volume = 379, year = 1996 }