[S-GC38] Solid Earth Geochemistry, Cosmochemistry

Tue. May 27, 2025 10:45 AM - 12:15 PM 301A (International Conference Hall, Makuhari Messe)

convener:Gen Shimoda(Geological Survey of Japan, AIST), Katsuhiko Suzuki(Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology), Katsuyuki Yamashita(Faculty of Environmental, Life, Natural Science and Technology, Okayama University), Akira Ishikawa(Department of Earth and Planetary Sciences, Tokyo Institute of Technology), Chairperson:Gen Shimoda(Geological Survey of Japan, AIST), Katsuhiko Suzuki(Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology), Akira Ishikawa(Department of Earth and Planetary Sciences, Tokyo Institute of Technology), Katsuyuki Yamashita(Faculty of Environmental, Life, Natural Science and Technology, Okayama University)

"Solid Earth Geochemistry, Cosmochemistry" session aims at evaluating processes during the 4.6 billion years of the solar system and the Earth. Any approaches to this issue is welcomed, including, geochemistry, geophysics, geology, mineralogy and petrology

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10:45 AM - 11:00 AM

[SGC38-01] Reevaluation of the highly siderophile element composition of the primitive mantle by applying the pyrolite model

*Tetsu Kogiso¹, Akira Ishikawa², Norikatsu Akizawa³ (1.Kyoto University, 2.Institute of Science Tokyo, 3.Hiroshima University)

11:00 AM - 11:15 AM

[SGC38-02] Osmium isotope heterogeneity in abyssal peridotites from Kane Fracture Zone, Mid Atlantic ridge

*Rentaro Takahashi¹, Akira Ishikawa¹, Tetsuya Yokoyama¹, Teruaki Ishii² (1.Institute of Science Tokyo, 2.Shizuoka University)

11:15 AM - 11:30 AM

[SGC38-03] The origin of ultrahigh pressure peridotites from Western Gneiss Region, Norway; Constrains from highly siderophile element geochemistry

*Yuya Sugiyama¹, Akira Ishikawa¹, Tetsuya Yokoyama¹ (1.Department of Earth and Planetary Sciences, School of Science, Institute of Science Tokyo)

11:30 AM - 11:45 AM

[SGC38-04] Origin of highly depleted peridotites in supra- subduction zones: whole-rock geochemistry and Os isotope of ultramafic rocks in the Kamuikotan Belt

Hidetoshi Mori¹, *Akira Ishikawa¹, Tetsuya Yokoyama¹, Tetsu Kogiso², Norikatsu Akizawa³ (1.Department of Earth and Planetary Sciences, Institute of Science Tokyo, 2.Graduate School of Human and Environmental Studies, Kyoto University, 3.Graduate School of Human and Environmental Studies, Kyoto UniversityEarth and Planetary System Science, Hiroshima University)

11:45 AM - 12:00 PM

[SGC38-05] Geochemical insights into Sunda Arc magmas genesis: To melt or not to melt?

*Esti Handini¹, Toshiaki Hasenaka², Takashi Sano³, Nicholas Dewitt Barber⁴, Hikaru Iwamori⁵, Masataka Kawaguchi⁵, Prya Arif Rahman¹ (1.Geological Engineering Department, Universitas Gadjah Mada, 2.Center for Water Cycle, Marine Environment, and Disaster Management, Kumamoto University, 3.National Museum of Nature and Science, Tokyo , 4.Department of Earth and Environmental Geoscience, Washington & Lee University, 5.Earthquake Research Institute, The University of Tokyo)

12:00 PM - 12:15 PM

[SGC38-06] Enhanced weathering of lizardite-rich sand in seawater: Implications for climate change mitigation in coastal and open sea environments in Oman

*Arshad Ali¹, Usman Taura¹, Sami Al Khamisi¹, Amrou Al Alawi¹, Sobhi Nasir¹, Talal Al Hosni¹, Anas Al-Rashidi¹, Zulfiqar Ahmad Rehan¹ (1.Sultan Qaboos University)

Session information