Data report; Rate- and state-dependent friction parameters of core samples form Site C0019, IODP Expedition 343 (JFAST)

Online Access: Get full text
doi: 10.2204/iodp.proc.343343T.203.2015
Author(s): Ikari, Matt J.
Integrated Ocean Drilling Program, Expedition 343/343T Scientists, College Station, TX
Author Affiliation(s): Primary:
University of Bremen, Center for Marine Environmental Science, Bremen, Germany
Other:
Texas A&M University, United States
Japan Agency for Marine-Earth Science and Technology, Japan
University of Leicester, United Kingdom
Helmholtz Center for Ocean Research Kiel, Germany
University of Calcutta, India
Centre Européen de Recherche et d'Enseignement en Géosciences de l'Environnement, France
University of Southampton, United Kingdom
University of Texas, Austin, United States
University of Bremen, Germany
University of Wisconsin, Madison, United States
University of Tokyo, Japan
Osaka City University, Japan
Pennsylvania State University, United States
Universita di Modena e Reggio Emilia, Italy
McGill University, Canada
Northern Arizona University, United States
University of Victoria, Canada
University of Otago, New Zealand
University of Tsukuba, Japan
University of New Hampshire, United States
China Earthquake Administration, China
Volume Title: Proceedings of the Integrated Ocean Drilling Program; Japan Trench Fast Drilling Project (JFAST); Expedition 343/343T of the riser drilling platform; Shimizu, Japan, to Sendai, Japan; Site C0019; 1 April-24 May 2012 and Minami-Ise, Japan, to Hachinohe, Japan; Site C0019; 5-19 July 2012
Volume Author(s): Mori, James J.; Chester, Frederick M.; Eguchi, Nobuhisa; Toczko, Sean; Kido, Yukari; Saito, Saneatsu; Sanada, Yoshinori; Anderson, Louise; Behrmann, Jan H.; Bose, Santanu; Conin, Marianne; Cook, Becky; Fulton, Patrick; Hirose, Takehiro; Ikari, Matt J.; Ishikmawa, Tsuyoshi; Jeppson, Tamara; Kameda, Jun; Kirkpatrick, James; Lin, Weiren; Mishima, Toshiaki; Moore, J. Casey; Nakamura, Yasuyuki; Regalla, Christine; Remitti, Francesca; Rowe, Christie D.; Sample, James; Sun, Tianhaozhe; Takai, Ken; Toy, Virginia; Ujie, Kohtaro; Wolfson, Monica; Tao Yang
Source: Proceedings of the Integrated Ocean Drilling Program; Japan Trench Fast Drilling Project (JFAST); Expedition 343/343T of the riser drilling platform; Shimizu, Japan, to Sendai, Japan; Site C0019; 1 April-24 May 2012 and Minami-Ise, Japan, to Hachinohe, Japan; Site C0019; 5-19 July 2012, James J. Mori, Frederick M. Chester, Nobuhisa Eguchi, Sean Toczko, Yukari Kido, Saneatsu Saito, Yoshinori Sanada, Louise Anderson, Jan H. Behrmann, Santanu Bose, Marianne Conin, Becky Cook, Patrick Fulton, Takehiro Hirose, Matt J. Ikari, Tsuyoshi Ishikmawa, Tamara Jeppson, Jun Kameda, James Kirkpatrick, Weiren Lin, Toshiaki Mishima, J. Casey Moore, Yasuyuki Nakamura, Christine Regalla, Francesca Remitti, Christie D. Rowe, James Sample, Tianhaozhe Sun, Ken Takai, Virginia Toy, Kohtaro Ujie, Monica Wolfson and Tao Yang; Integrated Ocean Drilling Program, Expedition 343/343T Scientists, College Station, TX. Proceedings of the Integrated Ocean Drilling Program. Expedition Reports, Vol.343/343T, 18p. Publisher: International Ocean Discovery Program, Washington, DC, United States. ISSN: 1930-1014 CODEN: IDSDA6
Note: In English. 17 refs.; illus., incl. sect., 5 tables, sketch map
Summary: This report explains shearing tests conducted on samples collected throughout the main cored interval at Site C0019 during Integrated Ocean Drilling Program Expedition 343, the Japan Trench Fast Drilling Project. This site is located within the region of high coseismic slip during the 2011 Tohoku earthquake that reached the ocean floor at the Japan Trench. Results of velocity-stepping tests within 0.1-30 µm/s on both intact and powdered samples allowed quantification of the rate- and state-dependent friction constitutive parameters a-b, a, b1, b2, Dc1 and Dc2 by inverse modeling techniques. Also reported here are measurements of the initial friction prior to each step (µo) and the slip-dependence of friction (η), which were used as input parameters to the model. Downhole patterns of friction parameters are observed to correlate consistently with lithology. For powdered samples, the fault zone, a siliceous mudstone ∼2 m below the fault zone, and three pelagic clay samples can be distinguished from hanging wall and underthrust footwall siliceous mudstones by lower a, lower b, higher a-b. These results indicate a tendency for velocity strengthening, lower friction, and higher ν, which indicates a tendency for slip-hardening. Intact samples show the same patterns, albeit with fewer data points. Aside from the lithologic control, strong downhole trends in the friction parameters are not observed.
Year of Publication: 2015
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 07 Marine Geology and Oceanography; 16 Structural Geology; Cores; Coseismic processes; Downhole methods; Earthquakes; Expedition 343; Expeditions 343/343T; Fault zones; Faults; Friction; IODP Site C0019; Integrated Ocean Drilling Program; Japan Trench; Japan Trench Fast Drilling Project; Measurement; Models; North Pacific; Northwest Pacific; Ocean floors; Pacific Ocean; Stick-slip; Tohoku-Oki earthquake 2011; Velocity; West Pacific
Coordinates: N375619 N375620 E1435449 E1435447
Record ID: 2015058318
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.