[S-CG60] Hard-Rock Drilling Science: Continental and Deep-Sea Drilling, and Ophiolite

Wed. May 27, 2026 10:45 AM - 12:15 PM 301A (International Conference Hall, Makuhari Messe)

Chairperson:Harigane Yumiko(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST)), Hoshide Takashi(Faculty of International Resource Sciences, Akita University), Michibayashi Katsuyoshi(Department of Earth and Planetary Sciences, GSES , Nagoya University)

The International Ocean Drilling Programme (IODP3), led by Japan and Europe, has launched since 2025The International Continental Scientific Drilling Program (ICDP) has already implemented a new science plan, "the ICDP Science Plan 2020-2030". Thus, hard rock drilling science in both ocean and continent is entering the next phase, in which new drilling proposals from unprecedented perspectives and the production of novel scientific outcomes based on existing drilling projects are highly anticipated. This session invites presentations related to "hard-rock" studies, including results from continental and ocean drilling projects. We also welcome a wide range of research contributions that are not limited to drilling, such as studies of ophiolite complexes, experimental investigations, and other research targeting rocks and minerals that constitute the Earth and other terrestrial planets.

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10:45 AM - 11:00 AM

[SCG60-07] Variation in petrological features and crystal-fabrics in the Horoman peridotite complex: Insights to melt-rock interaction within the uppermost mantle

*Kazuki Matsuyama ^1,2, Yumiko Harigane³, Itsuki Natsume⁴, Romain Tilhac², Benoit Ildefonse², Katsuyoshi Michibayashi^1,5 (1. Department of Earth and Planetary Sciences, GSES, Nagoya University, 2. Géosciences Montpellier, University of Montpellier, CNRS, Montpellier, France, 3. Research Institute of Geology and Geoinformation, Geological Survey of Japan, AIST, 4. Kanagawa Prefectural Museum of Natural History, 5. Volcanoes and Earth's Interior Research Center, IMG, JAMSTEC)

11:00 AM - 11:15 AM

[SCG60-08] Open system mantle melting during subduction initiation of the Oman ophiolite: Constraints from statistical analysis and forward modeling

★Invited Papers

*Yuto Miki^1,2, Eiichi Takazawa¹, Ikuya Nishio³, Kenta Ueki², Tatsu Kuwatani² (1. Niigata University, 2. Japan Agency for Marine-Earth Science and Technology, 3. Hiroshima University)

11:15 AM - 11:30 AM

[SCG60-09] Microstructures and Crystallographic Preferred Orientations in the Bankawa Peridotite Xenoliths, Japan

*Yuma Hirata¹, Katsuyoshi Michibayashi^1,3, Akihiro Tamura², Tomoaki Morishita², Shoji Arai² (1. Department of Earth and Planetary Sciences, GSES, Nagoya University, 2. Kanazawa University, 3. Volcanoes and Earth's Interior Research Center, IMG, JAMSTEC)

11:30 AM - 11:45 AM

[SCG60-10] Development of mesh-like replacement texture in flow-through experiments using gabbro and saline solution

*Kohei Suzuki¹, OTGONBAYAR DANDAR¹, Atsushi Okamoto¹ (1. Tohoku University Graduate School of Environmental Studies)

11:45 AM - 12:00 PM

[SCG60-11] Absolute Orientation Restoration of the BA3A Drill Core Reveals Depth-Dependent Orientation of Uppermost Mantle Olivine CPO

*Takeo Okuwaki¹, Katsuyoshi Michibayashi^1,2 (1. Department of Earth and Planetary Sciences, GSES , Nagoya University, 2. Volcanoes and Earth's Interior Research Center, IMG, JAMSTEC)

12:00 PM - 12:15 PM

[SCG60-12] Slab-mantle interaction during subduction initiation: constraints from the Oman ophiolite

*Tsuyoshi Ishikawa¹, Kazuya Nagaishi², Kyoko Kanayama^7,3, Keitaro Kitamura^7,4, Shigeyuki Wakaki^1,5, Yuki Kusano⁶, Susumu Umino⁷ (1. Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2. Marine Works Japan Ltd., 3. San'in Kaigan Geopark Museum of the Earth and Sea, 4. Asia Air Survey Co., Ltd., 5. National Museum of Japanese History, 6. Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), 7. College of Science and Engineering, Kanazawa University)

Session information