[2oral601-10] T2. From magma source and magma plumbing system to volcano formation and hydrothermal alteration

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[T2-O-15] High-Mg andesite sill near the Oidake pluton in Akakusa-Kamishima, Kumamoto prefecture: Possible western extension of the Setouchi Volcanic Rocks

*Hironao Shinjoe¹, Kentaro Ushimaru², Hideki Iwano³, Takafumi Hirata³, Yuji Orihashi⁴, Minoru Sasaki⁴ (1. Tokyo Keizai University, 2. Geological Survey of Japan, AIST, 3. Geochemical Research Center, the Univesity of Tokyo, 4. Graduate School of Science and Technology, Hirosaki University)

Keywords:

middle Miocene,Setouchi Volcanic Rocks,U-Pb age,high-Mg andesite