T7[Topic] From magma source and magma plumbing system to volcano formation and hydrothermal alteration

[T7-P-22] Petrological Characteristics and Significance of a Newly Discovered Gabbro Dyke in the Yuya Area, Nagato, Yamaguchi Prefecture, Japan

*Toshiaki Shimura¹, Chihiro Amaki^1,2, Reina Kaihara^1,3, Natsumi Sadamatsu^1,4, Mari Takimoto^1,5, Aoi Yoshioka^1,6, Ryosuke Saito¹ (1. Yamaguchi University, 2. Chubu Electric Power Co., Inc., 3. Chi-ken Sogo Consultants Co., Ltd, 4. Eight-Japan Engineering Consultants Inc., 5. West Japan Engineering Consultants, Inc., 6. Cosmo Construction Consultants Co., Ltd.)

Keywords:

Gabbro,San-in area,Yuya-wan Group,Miocene