Oral presentation

R6: Plutonic rocks, volcanic rocks and subduction factory

Sat. Sep 14, 2024 9:00 AM - 12:00 PM ES Hall (Higashiyama Campus)

Chairperson:Tatsuhiko Kawamoto(Shizuoka University), Takashi Yuguchi, Atsushi Kamei

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9:00 AM - 9:15 AM

[R6-01] Compositional evolution of slab-derived fluids during ascent and origin of subduction-zone primary magmas: Implications from trace-element partition between hydrous melts and Cl-free or Cl-rich aqueous fluids

*Hajime TANIUCHI¹, Tatsuhiko KAWAMOTO², Takayuki NAKATANI¹, Osamu ISHIZUKA¹, Toshihiro SUZUKI¹, Akihiko Tomiya¹ (1. GSJ, AIST, 2. Shizuoka Univ.)

9:15 AM - 9:30 AM

[R6-02] New crust and mantle physical properties research from the development of rock synthesis methods

「招待講演」

*Sanae Koizumi¹ (1. The University of Tokyo)

9:30 AM - 9:45 AM

[R6-03] The use of contact metamorphism to identify plutons associated with major contemporaneous eruption and estimate magma flux

*Simon R WALLIS¹, Ken Yamaoka², Akira Miyake³, Catherine Annen⁴ (1. The University of Tokyo, 2. AIST, 3. Aichi University of Education, 4. Institute of Geophysics, Czech Academy of Sciences)

9:45 AM - 10:00 AM

[R6-04] Petrography and geochronology of the Kuki granite, Kitakami Mountains, northeastern Japan: Shallow crustal intrusion and emplacement processes of granitic magma

*Satoshi SUZUKI¹, Takashi YUGUCHI², Keito ISHIGURO¹, Kyoka ENDO¹, Asuka KATO¹, Kosuke YOKOYAMA¹, Yasuhiro OGITA³, Tatsunori YOKOYAMA³, Shuhei SAKATA⁴, Takeshi OHNO⁵, Eiji SASAO³ (1. Yamagata University, 2. Kumamoto University, 3. Japan Atomic Energy Agency, 4. University of Tokyo, 5. Gakushuin University)

10:00 AM - 10:15 AM

[R6-05] Zircon U-Pb dating of granitoids in the Hobenzan area, western Yamaguchi Prefecture, southwest Japan

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

10:15 AM - 10:30 AM

[R6-06] Estimation of temperature and pressure conditions of granitoids in the eastern part of Shimane Prefecture, San'in Belt.

*Kai Nakahashi¹, Satoshi SAITO¹ (1. Ehime University Graduate School of Science and Engineering, Earth Science Division)

10:30 AM - 10:45 AM

[R6-07] Primary magma of Cretaceous Northern Kyushu batholith: New approach from Cumulus rocks

*Keisuke ESHIMA¹, Masaaki OWADA¹, Atsushi KAMEI² (1. Yamaguchi Univ. Sci. , 2. Shimane Univ.)

10:45 AM - 11:00 AM

[R6-08] Origin of the Cretaceous ignimbrite flare-up in SW Japan

*Ken Yamaoka¹, Tokiyuki Morohoshi², Daisuke Sato¹, Kazuto Mikuni¹ (1. AIST, 2. Univ. Tokyo. Sci.)

11:00 AM - 11:15 AM

[3Lecture-101-11-9add] 休憩

11:15 AM - 11:30 AM

[R6-09] The genesis of garnet in the Quaternary rhyolite of Hime-shima volcanic group, EEast Kyushu, Southwest Japan Arc.

*Takehiro HIRAYAMA^1,2, Tomoyuki SHIBATA², Masako YOSHIKAWA² (1. Tokyo University, 2. Hiroshima University)

11:30 AM - 11:45 AM

[R6-10] K–Ar ages and geochemical compositions of Early Pleistocene andesites from southern Kyushu, Japan

*Raiki YAMADA¹, Masakazu Niwa¹, Koji Umeda², Koshi Yagi³, Taisei Fujiwara³, Ikuo Okada³, Fukuka Kida¹ (1. Japan Atomic Energy Agency, 2. Hirosaki University, 3. Hiruzen Institute for Geology and Geochronology)

11:45 AM - 12:00 PM

[R6-11] Thermal history of pluton formation from Sr diffusion in plagioclase: implications for magma flux estimation and identification of plutons associated with major eruptions

「発表賞エントリー」

*Tokiyuki Morohoshi¹, Simon Richard Wallis¹ (1. The University of Tokyo)

Session information