[R6] R6: Plutonic rocks, volcanic rocks and subduction factory | 2025 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)

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Oral presentationR6: Plutonic rocks, volcanic rocks and subduction factory

R6: Plutonic rocks, volcanic rocks and subduction factory

Fri. Sep 12, 2025 10:00 AM - 12:00 PM JST
Fri. Sep 12, 2025 1:00 AM - 3:00 AM UTC

Oral Presentation B (Room No. 28)

Chairperson:Shin-ichi Kagashima(Yamagata University), Takashi Hoshide(Akita University)

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[R6-01]Igneous activity of meta-granitoid in the Oki Belt, SW Japan

*Atsushi KAMEI¹, Satomi HIRAI¹, Mai FUJIWARA¹, Kenichiro TANI², Nobuhiko NAKANO³, Shunsuke ENDO¹, Mizuki TAKAHASHI¹ (1. Shimane University, 2. National Museum of Nature and Science, 3. Kyushu University)

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10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)

[R6-02]Crust maturation process in Northern Kyushu during the Cretaceous period

*Keisuke ESHIMA¹, Jumpei YAMAGUCHI² (1. Yamaguchi Univ. Sci. Tech. Innov., 2. Yamaguchi Univ. Sci)

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10:30 AM - 11:00 AM JST(1:30 AM - 2:00 AM UTC)Invited Lecture

[R6-03]Granite Magma Processes during the Cretaceous Flare-up: A Case Study in the Oshima and the Kajishima, Geiyo Islands, Ehime Prefecture, Japan

*Kazuya SHIMOOKA¹, Mitsuhiro Nagata², Yasuhiro Ogita^3,4, Toshiro Takahashi⁵, Kenichiro Tani⁶, Motohiro Tsuboi¹, Satoshi Saito⁷ (1. Kwansei Gakuin University, 2. Nihon University, 3. JAEA, 4. Kumamoto University, 5. Niigata University, 6. NMNS, 7. Ehime University)

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

[R6-04]Zircon U-Pb dating of the San-yo granitoids in Yamaguchi Prefecture, southwest Japan

*Yukiyasu TSUTSUMI¹, Kenichiro TANI¹ (1. National Museum of Nature and Science)

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11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[R6-05]Long term magmatic activity of the Takada Granodiorite from the San’in batholith, Southwest Japan

*Sena Nakayama¹, Shunsuke Endo², Atsushi Kamei² (1. Oki Islands Geopark Management Bureau, 2. Shimane Univ.)

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11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[R6-06]Analysis of the formation environment of the Gamano granodiorite and the Daito granodiorite in the Inner Zone of southwest Japan: Constraints from zircon and melt inclusions

Chiho Ihira¹, Taichi Kawashima¹, *Satoshi Saito¹, Mayuko Fukuyama² (1. Ehime University, 2. Akita University)

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11:45 AM - 12:00 PM JST(2:45 AM - 3:00 AM UTC)

[R6-07]Petrological characteristics of a gabbro dyke, discovered from Yuya area, Nagato City, Yamaguchi Prefecture

*Toshiaki SHIMURA¹, Chihiro AMAKI¹, Reina KAIHARA¹, Natsumi SADAMATSU¹, Mari TAKIMOTO¹, Aoi YOSHIOKA¹, Ryosuke SAITO¹ (1. Yamaguchi University)

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