Japan Geoscience Union Meeting 2018

Session information

[EE] Oral

S (Solid Earth Sciences) » S-CG Complex & General

[S-CG54] Hard-Rock Drilling: Oman to Oceanic Lithosphere to Island Arc Formation and Beyond

Mon. May 21, 2018 9:00 AM - 10:30 AM A09 (Tokyo Bay Makuhari Hall)

convener:Eiichi TAKAZAWA(Department of Geology, Faculty of Science, Niigata University), Katsuyoshi Michibayashi(Department of Earth and Planetary Sciences, Nagoya University), Peter B Kelemen (共同), Damon A H Teagle (Ocean & Earth Science, National Oceanography Centre Southampton, University of Southampton, SO14-3ZH, Southampton, UK), Chairperson:Teagle Damon(Ocean & Earth Science, National Oceanography Centre Southampton, University of Southampton), Takazawa Eiichi(Niigata University)

The on-going Oman Drilling Project (OmDP) has drilled numerous hard-rock cores of ancient oceanic lithosphere and the underlying subduction zone of the Samail ophiolite in Oman, with support from ICDP, IODP, the Sloan Foundation's Deep Carbon Observatory, and Japanese, US, and European research agencies. Moreover, a number of IODP expeditions have focused on hard-rock drilling over the last 5 years including Expedition 352 in 2014, which drilled the volcanic sequence associated with subduction initiation in the Bonin fore-arc, Expedition 357, which drilled the Lost City hydrothermal field, Expedition 360, which drilled the lithosphere associated with ultraslow-spreading at the Southwest Indian Ridge in 2016, and Expedition 366, which drilled the serpentinite seamounts in the Mariana fore-arc. In this session, we invite presentations on the scientific results of hard-rock drilling at these and other sites. We also invite related presentations on oceanic lithosphere, island arc formation, and any other significant issue that could be addressed by future hard-rock drilling. This includes marine studies of oceanic lithosphere and on-land geological investigations of ophiolites, accreted arcs, and subduction complexes. The session is intended to be interdisciplinary, including the fields of geophysics, geochemistry, petrology, engineering, and biology.

9:00 AM - 9:15 AM

*Katsuyoshi Michibayashi1,14, Keishi Okazaki2, James Andrew Monton Leong3, Peter B Kelemen4, Kevin Johnson5, Rebecca N Greenberger6, Craig E Manning7, Michelle Harris8, Juan Carlos de Obeso4, Natsue Abe2, Kohei Hatakeyama9, Benoit Ildefonse10, Eiichi TAKAZAWA11, Damon A H Teagle12, Jude Ann Jude12, The Oman Drilling Project Phase I Science Party13 (1.Shizuoka University, 2.JAMSTEC, 3.Arizona State University, 4.Columbia University, 5.University of Hawaii at Manoa, 6.California Institute of Technology, 7.University of California at Los Angeles, 8.Plymouth University, 9.Hiroshima University, 10.Universite de Montpellier, 11.Niigata University, 12.University of Southampton, 13.D/V Chikyu (JAMSTEC), 14.Nagoya University)

10:00 AM - 10:15 AM

*Akane Ohira1,2, Shuichi Kodaira1,2, Gregory F Moore3, Mikiya Yamashita2, Kiyoshi Suyehiro2, Kyaw Moe2, Toshiya Fujiwara2, Yuka Kaiho2, Seiichi Miura2, Gou Fujie2, Yasuyuki Nakamura2, Susumu Umino4, Americus dC Perez4, Yuki Kusano5 (1.Yokohama National University, 2.JAMSTEC, 3.University of Hawaii, 4.Kanazawa University, 5.AIST)




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