Rock pulverization at high strain rate near the San Andreas fault

被引：0
作者：
Mai-Linh Doan
Gérard Gary
机构：
[1] Laboratoire de Géophysique Interne et Tectonophysique—CNRS—OSUG,
[2] Université Joseph Fourier Grenoble I,undefined
[3] Laboratoire de Mécanique des Solides,undefined
[4] Ecole Polytechnique,undefined
来源：
Nature Geoscience | 2009年 / 2卷
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摘要：
Rocks near the San Andreas fault are pervasively crushed at distances of up to 400 m from its core. Laboratory experiments and calculations suggest that the rocks were pulverized at high strain rates (>150 s−1) associated with a supershear rupture—a rupture propagating at a velocity equal to greater than that of seismic shear waves.
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页码：709 / 712
页数：3
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共 55 条
[1]  
Caine JS(1996)Fault zone architecture and permeability structure Geology 24 1025-1028
[2]  
Evans JP(1993)Internal structure and weakening mechanisms of the San Andreas fault J. Geophys. Res. 98 771-786
[3]  
Forster CB(2006)Pulverized rocks in the Mojave section of the San Andreas fault zone Earth Planet. Sci. Lett 245 642-654
[4]  
Chester FM(2005)Particle size and energetics of gouge from earthquake rupture zones Nature 434 749-752
[5]  
Evans JP(2005)Gouge formation by dynamic pulverization during earthquake rupture Earth. Planet. Sci. Lett. 235 361-374
[6]  
Biegel RL(1996)On the use of SHPB techniques to determine the dynamic behavior of materials in the range of small strains Int. J. Solids Struct. 33 3363-3375
[7]  
Dor O(2007)The effect of radial inertia on brittle samples during the split Hopkinson pressure bar test Int. J. Impact Eng. 34 405-411
[8]  
Ben-Zion Y(2003)Single and multiple fragmentation of brittle geomaterials Rev. Franco. Gen. Civ. 7 973-1003
[9]  
Rockwell TK(2003)About the dynamic strength enhancement of concrete-like materials in a split Hopkinson pressure bar test Int. J. Solids Struct. 40 343-360
[10]  
Brune JN(2009)Characterization of pulverized granite from a traverse and a shallow drill along the San Andreas fault, Little Rock, CA Seismological Society of America Annual Meeting, Seismol. Res. Lett. 80 319-1567
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