English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Rock-fluid interactions along seismogenic faults are significant issues, because they are strongly related to seismogenic mechanisms and also to modifications of the seismogenic fault itself. Various mechanisms for seismogenesis have been proposed, such as frictional melting (Sibson, 1975; Spray, 1992), thermal pressurization (Mase and Smith, 1987; Melosh, 1979; O'Hara et al., 2006; Sibson, 1977; Wibberley and Shimamoto, 2005), acoustic fluidization (Melosh, 1979; Otsuki et al., 2003), elastohydrodynamic lubrication (Brodsky and Kanamori, 2001), and silica gel lubrication (Di Toro et al., 2006). Some of these are related to frictional heating. Heating signatures from natural faults have been well-studied on the basis of the remaining grains in pseudotachylyte along faults (Ikesawa et al., 2003; Ujiie et al., 2007), the vitrinite reflectance anomaly (O'Hara et al., 2006), borehole logging (Kano et al., 2006; Mishima et al., 2006; Tanaka et al., 2006), the thermal decomposition of paramagnetic minerals (Mishima et al., 2006), and the distribution of minor elements (Ishikawa et al., 2008). In addition to the thermal effects, some of the seismogenic mechanisms are also strongly related to rock-fluid interactions. Studies focusing on rockfluid interactions along fossil seismogenic faults have been conducted at some major fault zones. These include the Nojima fault in Japan (an intra-crustal seismogenic fault), where bulk rock chemistry analysis was used (Tanaka et al., 2007), the Chi-Chi fault in Taiwan (an active subduction plate boundary fault), which was studied on the basis of its clay characteristics (Hashimoto et al., 2008; Hashimoto et al., 2007), fossil faults such as the Mugi melange, in the Shimanto Belt, Japan, again using bulk rock chemistry (Hashimoto et al., 2009), and an out of sequence thrust in the Shimanto Belt, Japan, using minor element distributions (Honda et al., 2011; Yamaguchi et al., 2011). In this study, we focused on clay minerals within the fossil seismogenic fault along the subduction interface, in order to understand rock-fluid interactions at the fault. Clay minerals are commonly produced along faults, possibly by alteration of fine-grained abraded host rock materials due to rock-fluid interaction. The characteristics of clay minerals along seismogenic faults, in comparison with those of host rocks, provide clues

Rock-Fluid Interaction Along Seismogenic Faults Infered from Clay Minerals in Okitsu Mélange, the Cretaceous Shimanto Belt, SW Japan