Alteration of the oceanic crust inferred from physical properties of dredged samples from Mariana Trench and Marie Celeste Transform Fault

Tomohiro Ito

Presentation information

[E] Oral

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

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

Wed. May 27, 2026 9:00 AM - 10:30 AM 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), Okazaki Keishi(Earth and Planetary Systems Science Program, Hiroshima University)

9:15 AM - 9:30 AM

[SCG60-02] Alteration of the oceanic crust inferred from physical properties of dredged samples from Mariana Trench and Marie Celeste Transform Fault

★Invited Papers

*Tomohiro Ito¹, Ikuo Katayama¹, Yuya Akamatsu², Masakazu Fujii^3,4, Kyoko Okino⁵, Yasuhiko Ohara^2,6,7, Hiroyuki Yamashita⁸ (1. Department of Earth and Planetary Systems Science, Hiroshima University, 2. Research Institute for Marine Geogynamics, JAMSTEC, 3. National Institute of Polar Research, 4. SOKENDAI (The Graduate University for Advanced Studies), 5. Atmosphere and Ocean Research Institute, The University of Tokyo, 6. Hydrographic and Oceanographic Department of Japan, 7. Department of Earth and Planetary Sciences, Nagoya University, 8. Kanagawa Prefectural Museum of Natural History)

Keywords:Alteration of oceanic crust, Seismic velocity, Electrical resistivity, Principal Component Analysis