[S-CG41] Hard-Rock Drilling Science: From Continental to Deep Sea Drilling, and Oman Project

Sun. Jun 6, 2021 9:00 AM - 10:30 AM Ch.19 (Zoom Room 19)

convener:Eiichi TAKAZAWA(Department of Geology, Faculty of Science, Niigata University), Katsuyoshi Michibayashi(Department of Earth and Planetary Sciences, Nagoya University), Keishi Okazaki(Japan Agency for Marine-Earth Science and Technology), Chairperson:Keishi Okazaki(Japan Agency for Marine-Earth Science and Technology), Sayantani Chatterjee(Niigata University, Department of Geology, Faculty of Science)

The IODP and ICDP have decided to launch a new international science framework, and hard rock drilling science is about to enter the preparatory period for the next phase. Therefore, drilling proposals from a new perspective and the production of scientific results based on existing drilling projects are expected. In this session, we invite presentations on the scientific results of hard-rock drilling. We also invite related studies of on-land geological investigations of Oman ophiolites and experimental studies. The session is intended to be interdisciplinary, including the fields of geophysics, geochemistry, petrology, engineering, and biology. This session is co-hosted with the focus group of hard rock drilling science.

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9:00 AM - 9:15 AM

[SCG41-01] The structure of magma chamber below a fast-spreading ridge based on field and core analyses of the Oman ICDP drilling

*Susumu Umino¹, Yuki Kusano³, Osamu Ishizuka³, Takahiro Fudai⁴, Akihiro Tamura¹, Tomoaki Morishita^1,2 (1.Department of Earth Sciences, Kanazawa University, 2.JAMSTEC, 3.GSJ-AIST, 4.Taiheiyo Cement Corrperation)

9:15 AM - 9:30 AM

[SCG41-02] Oxidation controlled symplectitic formation in olivine gabbros from Oman ophiolite, Oman Drilling Project, Hole GT2A

*Sayantani Chatterjee¹, Debaditya Bandyopadhyay^2,3, Eiichi Takazawa^1,4, Katsuyoshi Michibayashi⁵ (1.Department of Geology, Faculty of Science, Niigata University, Niigata 950–2181, Japan, 2.Department of Geology, University of North Bengal, Darjeeling 734013, India, 3.Department of Geology, University of Calcutta, Kolkata 700019, India, 4.Japan Agency for Marine–earth Science and Technology, Yokosuka 237–0061, Japan, 5.Graduate School of Environmental Studies, Nagoya University, Nagoya 464–8602, Japan)

9:30 AM - 9:45 AM

[SCG41-03] Effect of pore geometry on ultrasonic velocity of epidosites collected from the Oman Drilling Project

*Kumpei Nagase¹, Ikuo Katayama¹, Kohei Hatakeyama¹, Keishi Okazaki² (1.Earth and Planetary Systems Science Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 2.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology)

9:45 AM - 10:00 AM

[SCG41-04] Mineral mode of listvenite from ICDP Oman Drilling Project Hole BT1B inferred from X-ray CT core images

*Keishi Okazaki¹, Katsuyoshi Michibayashi², Kohei Hatakeyama³, Natsue Abe⁴, Kevin Johnson⁵, Peter B Kelemen⁶ (1.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, 2.Department of Earth and Planetary Sciences, Nagoya University, 3.Department of Earth and Planetary Systems Sciences, Hiroshima University, 4.Mantle Drilling Promotion Office, Japan Agency for Marine-Earth Science and Technology, 5.Department of Earth Sciences, University of Hawai‘i at Mānoa, 6.Lamont Doherty Earth Observatory, Columbia University)

10:00 AM - 10:30 AM

[SCG41-05] Serpentinization and Fe(III) distribution along the crust-mantle section of the oceanic lithosphere: insights from the Oman Drilling CM1A site

★Invited Papers

*Atsushi Okamoto¹, Kazuki Yoshida¹, Ryosuke Oyanagi², Yasuhiro Niwa³, Yasuo Takeichi³, Masao Kimura³ (1.Graduate School of Environmental Studies, Tohoku University, 2.Japan Agency For Marine-Earth Science and Technology, 3.High Energy Accelerator Research Organization (KEK))

Session information