Relation between temporal change of fault rock materials and mechanical properties

우상우,; Han, Rongkui; 김창민,; 정기영,; 정종옥,; 이희권,

doi:10.14770/jgsk.2016.52.6.847

Cited by 14 publications

(1 citation statement)

References 31 publications

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“…In the damage zones, the sedimentary and volcanic rocks show high densities of shear and extension fractures and calcite veins; the fracture density appears to increase toward the core zone (Kim et al., 2016). There are some noticeable subsidiary faults with millimeters‐to‐decimeters‐thick clay‐rich gouges (Kim et al., 2016; Woo et al., 2016).…”

Section: The Yangsan Faultmentioning

confidence: 99%

Geological Records of Coseismic Shear Localization Along the Yangsan Fault, Korea

2021

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In natural fault zones, shear strain is mainly accommodated in fault rocks (or fault materials) that make up the fault core (i.e., a central high-strain zone of a brittle fault; Fossen, 2016). The shear strain may be localized in short-term and long-term scales. The long-term localization has been reported from both seismogenic and aseismic fault zones (e.g., Sibson, 2003). Seismic rupture events may repeatedly occur in a slip zone over a long period, expressed by progressive displacement of geomorphic features (e.g., Lensen, 1968). Also, aseismic fault slip may be accommodated in narrow zones of meters to decimeters in thickness (e.g., the Hayward fault; Bilham & Whitehead, 1997). Aseismic shear localization observed from statically weak faults appears to be promoted by the operation of time-dependent, fluid-assisted deformation mechanisms (e.g., dissolution-precipitation creep) in fault rocks (e.g.,

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Section: The Yangsan Faultmentioning

confidence: 99%