[S-CG51] Hard-Rock Drilling Science: Continental and Deep-Sea Drilling, and Ophiolite

Mon. May 26, 2025 3:30 PM - 5:00 PM 106 (International Conference Hall, Makuhari Messe)

convener:Takashi Hoshide(Faculty of International Resource Sciences, Akita University), Yumiko Harigane(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST)), Keishi Okazaki(Earth and Planetary Systems Science Program, Hiroshima University), Chairperson:Takashi Hoshide(Faculty of International Resource Sciences, Akita University), Keishi Okazaki(Earth and Planetary Systems Science Program, Hiroshima University), Yumiko Harigane(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST))

The International Ocean Discovery Program (IODP) has established the "2050 Science Framework: Exploring Earth by Scientific Ocean Drilling" as a guideline for 2024 and beyond. The International Continental Scientific Drilling Program (ICDP) has already launched a new science plan, "the ICDP Science Plan 2020-2030". Thus, hard rock drilling science is about to enter 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" such as continental drilling, deep-sea drilling, on-land geological investigations of ophiolites and experimental studies. The session is intended to be interdisciplinary, including the fields of geophysics, geochemistry, petrology, engineering, and biology. This session is organized by the Hard-rock Drilling Science Focus Group.

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3:30 PM - 3:45 PM

[SCG51-06] Assessing the quality of measurement data for different forms of onboard physical property measurements of hard rock samples in IODP Exp 399

*Natsue Abe^1,2, Kristin Dickerson ³, Jeremy R. Deans ⁴, Susan Q Lang⁵, Andrew M McCaig⁶, Peter Blum⁷, Scientists Exp.399 IODP⁷ (1.Japan Agency for Marine-Earth Science and Technology , 2.Graduate School of Natural Science& Technology, Kanazawa University, 3.University of California Santa Cruz, 4.University of South Mississippi, 5.Woods Hole Oceanographic Institution, 6.University of Leeds, 7.Texas A&M University International Ocean Discovery Program)

3:45 PM - 4:00 PM

[SCG51-07] Application of shipboard natural gamma-ray spectra at DV JOIDES resolution for objective description of serpentinite core drilled in IODP LEG 402

*Tomoaki Morishita^1,2, Noriaki Abe³, Maria Filomena Loreto⁴, Irina Y. Fllina⁵, Brandon D. Shuck⁶, Norikatsu Akizawa⁷, Manon Bickert⁸, Emily Cunningham⁹, Agata Di Stefano¹⁰, Qi Fu¹¹, Swanne B.L. Gontharet¹², Lorna E. Kearns¹³, Ravi Kiran Koorapati¹⁴, Chao Lei¹⁵, Luca Magri¹⁶, Walter Menapace¹⁷, Ashutosh Pandey¹⁸, Victoria L. Pavlovics⁹, Philippe A. Pedard¹⁹, Eirini M. Poulaki⁶, Milena A. Rodriguez-Pilco²⁵, Alessio Sanfilippo²⁰, Paola Vannucci²¹, Akihiro Tamura¹, Xiangyu Zhao²², Emily R. Estes²³, Alberto Malinverno²⁴, Nevio Zitellini⁴ (1.Kanazawa University, 2.JAMSTEC, 3.Tono Geoscience Center Japan Atomic Energy Agency (JAEA), 4.ISMAR, 5.University of Nebraska, 6.Louisiana State University, 7.Hiroshima University, 8.Brest University, 9.University of Utah, 10.University of Catania, 11.University of Houston, 12.Sorbonne University, 13.University of Texas at Austin, 14.Binghamton University, 15.China University of Geosciences, 16.University of Tasmania, 17.MARUM, 18.Indian Institute of Science Education and Research Thiruvananthapuram, 19.Geosciences Montpellier, 20.University of Pavia, 21.University of Florence, 22.Shanghai Jiao Tong University, 23.NSF, 24.LDEO, Columbia University, 25.Texas A&M University at Galveston)

4:00 PM - 4:15 PM

[SCG51-08] Mantle processes heterogeneity in the Northern and Southern Oman ophiolite: Insights from Independent Component Analysis and Open-System Melting model

*Yuto Miki¹, Eiichi TAKAZAWA¹, Kenta Ueki², Tatsu Kuwatani² (1.Niigata University, 2.Japan Agency for Marine-Earth Science and Technology)

4:15 PM - 4:30 PM

[SCG51-09] Formation of Primitive Lower Oceanic Crust at a Paleo-Spreading Center in the Oman Ophiolite

*Shujiro Araoka¹, Marie Python¹, Natsumi Ito¹, Claire Charles² (1.Hokkaido University, 2.Ifremer)

4:30 PM - 4:45 PM

[SCG51-10] Analyzing XCT data of Oman drilling cores : Towards the understanding of mantle continuous structure

*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)

4:45 PM - 5:00 PM

[SCG51-11] Olivine crystal-fabric transition from asthenospheric to lithospheric flow: An example from the Oman ophiolite

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

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