JpGU-AGU Joint Meeting 2026

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[E] Oral

S (Solid Earth Sciences ) » S-VC Volcanology

[S-VC39] Submarine volcanism

Mon. May 25, 2026 10:45 AM - 12:15 PM 301B (International Conference Hall, Makuhari Messe)

Chairperson:Maeno Fukashi(Earthquake Research Institute, University of Tokyo), Fujita Eisuke(National research Instituite for Earth science and Disaster Resilience, Volcanic research department)

11:30 AM - 11:45 AM

[SVC39-09] Are the Ogasawara Islands arc volcanoes in a subduction zone or oceanic ridges at a spreading plate boundary?

*Yoshihiko Tamura1, Ryuta Arai1, Iona McIntosh1, Osamu Ishizuka2, Shuichi Kodaira1, Narumi Takahashi1 (1. Research Institute for Marine Geodynamics, Japan Agency for Maine-Earth Science and Technology, 2. GSJ, AIST)

Keywords:Ogasawara islands, boninite, Chichijima, andesite