<strong>Constraining pre-eruptive timescales of the 2021 Fukutoku-Oka-no-Ba eruption from magnetite and obsidian diffusion chronometry</strong>

Taisei Ukita

Presentation information

[E] Oral

S (Solid Earth Sciences ) » S-VC Volcanology

[S-VC41] Crystal clear: petrological reconstructions of magmatic processes and histories

Thu. May 28, 2026 10:45 AM - 12:15 PM Convention Hall (CH-A) (International Conference Hall, Makuhari Messe)

Chairperson:Kawaguchi Masataka(Earthquake Research Institute, the University of Tokyo), Iwahashi Kurumi(National Institute of Advanced Industrial Science and Technology), Conway Chris(Geological Survey of Japan, AIST)

11:15 AM - 11:30 AM

[SVC41-07] Constraining pre-eruptive timescales of the 2021 Fukutoku-Oka-no-Ba eruption from magnetite and obsidian diffusion chronometry

*Taisei Ukita^1,2, Kenichiro Tani², Iona McIntosh³, Masanari Arao¹, Michihiko Nakamura¹ (1. Department of Earth Science, Graduate School of Science, Tohoku University, 2. Department of Science, National Museum of Nature and Science, 3. Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

Keywords:Fukutoku-Oka-no-Ba, magnetite, obsidian, diffusion chronometry, crystal zoning, sumarine eruption