Pervasive outgassing via diktytaxitic texture may suppress self-explosivity in lava domes: Insights from Ogurayama, Towada Volcano

Natsuko Sekiya

Presentation information

[E] Oral

S (Solid Earth Sciences ) » S-VC Volcanology

[S-VC40] Volcanic eruption dynamics and mechanisms: controlling physical and chemical processes

Wed. May 27, 2026 1:45 PM - 3:15 PM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

Chairperson:Mujin Mayumi(Hokkaido University), Farquharson Ian Jamie(Niigata University), Park Jong Gil(Rice University)

2:15 PM - 2:30 PM

[SVC40-09] Pervasive outgassing via diktytaxitic texture may suppress self-explosivity in lava domes: Insights from Ogurayama, Towada Volcano

*Natsuko Sekiya¹, Michihiko Nakamura², Ryosuke Sakurai³, Mayumi Mujin⁴, Naoki Araya⁵, Shingo Takeuchi⁶, Yukiko Suwa⁷ (1. Division of Earth and Planetary Materials Science, Faculty of Science, Tohoku University, 2. Department of Earth Science, Graduate School of Science, Tohoku University, 3. Institute of Space and Astronautical Science, JAXA, 4. Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University, 5. Geological Survey of Japan, AIST, 6. Central Research Institute of Electric Power Industry, 7. CERES Inc.)

Keywords:diktytaxitic, permeability, porosimetry, evaporation-condensation, lava dome, outgassing