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 1:45 PM - 3:15 PM 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:Kelemen Peter(Columbia University), Morishita Tomoaki(Kanazawa 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.

1:45 PM - 2:15 PM

*Damon A H Teagle1, Michelle Harris2, Laura Crispini3, Jeremy Deans, Wayne Pat Shanks III4, Peter Kelemen5, Oman Drilling Project Phase 1 Science Party (1.Ocean & Earth Science, National Oceanography Centre Southampton, University of Southampton, SO14-3ZH, Southampton, UK, 2.Plymouth University, Plymouth, PL4, United Kingdom, 3.University of Genoa, Genoa, Italy, 4.U.S. Geological Survey, Denver, CO, United States, 5.Columbia University, Palisades, NY, United States)

2:15 PM - 2:30 PM

*Takashi Hoshide1, Susumu Umino2, Yuki Kusano3, Peter B Kelemen4, Damon A H Teagle5, Eiichi TAKAZAWA6, Jude Ann Coggon5, Katsuyoshi Michibayashi7, The Oman Drilling Project Phase1 Science Party8 (1.Faculty of International Resource Sciences, Akita University, 2.Kanazawa University, 3.Geological Survey of Japan, 4.Lamont-Doherty Earth Observatory, 5.Southampton University, 6.Niigata University, 7.Shizuoka University, 8.D/V CHIKYU)

2:45 PM - 3:00 PM

*Natsue Abe1, Kohei Hatakeyama2, Keishi Okazaki3, James Andrew Leong4, Yamato Tateishi5, Benoit Ildefonse6, Michelle Harris7, Katsuyoshi Michibayashi8, Juan Carlos de Obeso9, Damon A H Teagle10, Eiichi TAKAZAWA11, Peter B Kelemen12, Phase I Science Party The Oman Drilling Project13 (1.R&D Center for Ocean Drilling Science, Japan Agency for Marine-Earth Science and Technology, 2.Hiroshima University, 3.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, 4.Arizona State University, 5.Okayama University, 6.Université de Montpellier, 7.Plymouth University, 8.Shizuoka University, 9.Lamont -Doherty Earth Observatory, Columbia University, 10.University of Southampton, Ocean & Earth Science, National Oceanography Centre Southampton, 11.Niigata University, 12.Columbia University, 13.University of Southampton, Oman Drilling Project Office)



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