| Introduction | p. 1 |
| Terminology and Origin of Pseudotachylyte | p. 5 |
| Terminology | p. 5 |
| Controversy Regarding the Physical Origin of Pseudotachylyte | p. 8 |
| Pseudotachylyte-Related Fault Rocks and Conceptual Fault Models | p. 17 |
| Introduction | p. 17 |
| Fault Rocks | p. 18 |
| Classification of Fault Rocks | p. 18 |
| Mylonitic Rocks | p. 23 |
| Cataclastic Rocks | p. 25 |
| Formation of S-C Fabrics | p. 39 |
| Fault Zone Strength and Fault Model | p. 40 |
| Seismogenic Fault Zone Strength | p. 40 |
| Conceptual Fault Zone Model | p. 43 |
| Tectonic Environment and Structure of Pseudotachylyte Veins | p. 47 |
| Tectonic Environment and Field Occurrence of Pseudotachylyte | p. 47 |
| Tectonic Environment | p. 47 |
| Field Occurrence | p. 48 |
| Chilling-margin and Crack Textures | p. 55 |
| Classification of Pseudotachylyte Veins | p. 60 |
| Fault Veins and Injection Veins | p. 60 |
| Pseudotachylyte Generation Zones | p. 64 |
| Relation Between Fault Vein Thickness and Slip Amount | p. 70 |
| Pseudotachylyte Matrix | p. 75 |
| Introduction | p. 75 |
| Microstructural Characteristics | p. 76 |
| Textural Classification of Pseudotachylyte Matrix | p. 76 |
| Flow Structures | p. 81 |
| Vesicles and Amygdules | p. 84 |
| Powder X-Ray Diffraction Analysis | p. 90 |
| X-Ray Diffraction Patterns for Pseudotachylyte | p. 90 |
| Quantitative Analysis of Glass and the Crystalline Fraction | p. 93 |
| Quantitative Analysis of Crystalline Material | p. 95 |
| Discussion | p. 96 |
| Properties of Glass and Glassy Matrix | p. 96 |
| Effect of Frictional Melt on Fault Strength | p. 97 |
| Estimation of the Formation Depth of Pseudotachylyte | p. 98 |
| Microlites | p. 105 |
| Introduction | p. 105 |
| Texture and Morphology of Microlite | p. 106 |
| Texture | p. 106 |
| Morphology | p. 106 |
| Microlite Chemistry and Magnetic Properties | p. 118 |
| Microlite Chemistry | p. 118 |
| Magnetic Properties | p. 128 |
| Discussion of the Mechanism of Microlite Formation | p. 132 |
| Fragments Within Pseudotachylyte Veins | p. 139 |
| Terminology | p. 139 |
| Fragments that Resemble Conglomerate Clasts | p. 139 |
| Grain-size Analysis | p. 143 |
| Grain-size Distribution Within Melt-origin Pseudotachylyte | p. 143 |
| Grain-size Distribution: A Discussion | p. 148 |
| Fabrics of Fragments and Degree of Rounding | p. 151 |
| Fabrics | p. 151 |
| Degree of Rounding of Fragments | p. 151 |
| Formation of Rounded Fragments: A Discussion | p. 155 |
| Chemical Composition and Melting Processes of Pseudotachylyte | p. 159 |
| Introduction | p. 159 |
| Bulk-Vein and Matrix Compositions | p. 160 |
| Bulk Composition of Pseudotachylyte Veins | p. 160 |
| Chemical Composition of Pseudotachylyte Matrix | p. 162 |
| Water Contents of Pseudotachylyte Veins | p. 168 |
| Discussion | p. 169 |
| Melting Processes | p. 169 |
| Melt Temperature | p. 171 |
| Role of Water During Frictional Melting | p. 173 |
| Formation of Pseudotachylyte in the Brittle and Plastic Regimes | p. 177 |
| Introduction | p. 177 |
| Woodroffe Pseudotachylytes | p. 179 |
| Tectonic Setting of the Woodroffe Thrust | p. 179 |
| Field Occurrences of the Woodroffe Pseudotachylytes | p. 181 |
| Microstructures | p. 187 |
| Dahezhen Pseudotachylytes | p. 197 |
| Tectonic Setting of the Dahezhen Shear Zone | p. 197 |
| Field Occurrence of the Dahezhen Pseudotachylytes | p. 198 |
| Microscopy and Chemical Composition | p. 204 |
| Discussion | p. 212 |
| Formation Mechanisms of Large Volumes of Pseudotachylytes | p. 212 |
| Conditions of Formation of the Dahezhen and Woodroffe M-Pt Veins | p. 216 |
| Crushing-Origin Pseudotachylyte and Veinlet Cataclastic Rocks | p. 225 |
| Introduction | p. 225 |
| Occurrence of Crushing-Origin Pseudotachylyte and Cataclastic Veins | p. 226 |
| Crushing-Origin Pseudotachylyte | p. 226 |
| Fault-Gouge Injection Veins | p. 230 |
| Layered Fault Gouge and Pseudotachylyte Veins | p. 232 |
| Crack-Fill Veins | p. 234 |
| Petrologic Characteristics of Veinlet Cataclastic Rocks | p. 237 |
| Microstructures of Veinlet Cataclastic Rocks | p. 237 |
| Powder X-ray Diffraction Analysis of Veinlet Material | p. 244 |
| Chemical Composition Data and Isotope Analyses | p. 250 |
| Age Data for Crack-fill Veins | p. 252 |
| Discussion on the Formation Mechanisms of Veinlet Cataclastic Rocks | p. 253 |
| Formation Mechanism of Amorphous Material Within Veinlet Cataclastic Rocks | p. 253 |
| Coseismic Fluidization of Fine-grained Material Within Fault Zones | p. 254 |
| Repeated Events of Seismic Slip | p. 256 |
| Repeated Coseismic Infiltration of Surface Water into Deep Fault Zones | p. 257 |
| Landslide-related Pseudotachylyte | p. 265 |
| Introduction | p. 265 |
| Occurrences of Landslides and Related Pseudotachylytes | p. 266 |
| Langtang Himalaya Landslide and Related Pseudotachylyte | p. 266 |
| Chiufener-Shan Landslide and Related Pseudotachylyte | p. 269 |
| Petrographic Characteristics of Landslide-related Pseudotachylytes | p. 274 |
| Petrography of the Langtang Himalaya Pseudotachylyte | p. 274 |
| Petrography of the Chiufener-Shan Pseudotachylyte | p. 277 |
| Glass Contents of the Observed Pseudotachylytes | p. 279 |
| Discussion of the P-T Conditions during the Formation of Landslide-related Pseudotachylyte | p. 280 |
| Experimentally Generated Pseudotachylyte | p. 283 |
| Introduction | p. 283 |
| High-Velocity Frictional Experiments | p. 284 |
| Test Equipment and Experimental Conditions | p. 284 |
| Experiment Samples and Procedures | p. 290 |
| High-Velocity Frictional Properties | p. 292 |
| Microstructures of Experimentally Generated Pseudotachylyte | p. 293 |
| Textures of the Fault Shear Plane | p. 293 |
| Vein Geometry and Texture of Molten Material | p. 294 |
| Powder X-ray Diffraction Analysis of Run Products | p. 300 |
| Diffraction Patterns of Run Products | p. 300 |
| Quantitative Analysis | p. 301 |
| Chemical Composition Data | p. 304 |
| Gabbro Samples | p. 304 |
| Granite Samples | p. 307 |
| Albitite-Quartz and Anorthosite-Anorthosite Pairs | p. 308 |
| Discussion | p. 315 |
| Vein Geometry | p. 315 |
| Melting Textures | p. 315 |
| Non-equilibrium Melting Processes | p. 316 |
| Melting Temperature | p. 318 |
| High-Velocity Slip Weakening | p. 319 |
| References | p. 321 |
| Index | p. 341 |
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