[2oral105-12] T2［Topic Session］Metamorphic rocks and tectonics

Mon. Sep 18, 2023 10:00 AM - 12:00 PM oral room 1 (4-11, Yoshida-South Campus Bldg. No 4)

Chiar:Ippei Kitano, Toru Nakajima

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10:00 AM - 10:15 AM

[T2-O-1] Multiple orogenic events recorded in zircon-hosted melt and fluid inclusions

【ハイライト講演】

*Toru Nakajima¹, Sota Niki², Shumpei Kudo³, Tetsuo Kawakami³, Fumiko Higashino³, Takafumi Hirata², Harutaka Sakai³ (1. Tono Geoscience Center, Japan Atomic Energy Agency, 2. Geochemical Research Centre, The University of Tokyo, 3. Department of Geology and Mineralogy, Graduate School of Science, Kyoto University)

世話人よりハイライトの紹介：中央ヒマラヤに産出する正片麻岩を対象に，ジルコン及びその包有物の多角的分析から，ヒマラヤ造山運動に先立つ古生代初期のマグマ―流体活動の解読を目指した研究である．講演者らは詳細な組織観察に加え，ジルコンの微量元素とウラン・鉛局所年代測定を系統的に行うことで，複数回の造山運動に起因するマグマ―流体活動履歴を読み取ることに成功した．ヒマラヤ地域の地史を鮮明にする研究成果であり，今後の進展が期待される．※ハイライトとは

10:15 AM - 10:30 AM

[T2-O-2] Raman spectroscopy and thermometry analysis of carbonaceous materials from pelitic rocks of the Barovian zones in the Himalayan metamorphic belt

*HAFIZ U. REHMAN¹, RENA GOTANDA¹, YUI KOUKETSU² (1. Kagoshima University , 2. Nagoya University)

10:30 AM - 10:45 AM

[T2-O-3] Evaluation of negative residual pressure of quartz inclusions in kyanite: A case study of the pelitic gneiss in the Pohorje Mountains, Slovenia

*Tomoki Taguchi¹, Tomoyuki Kobayashi² (1. Waseda Univ., 2. Nagoya Gakuin Univ.)

10:45 AM - 11:00 AM

[T2-O-4] (entry) Metamorphic P-T path of pyroxene-bearing felsic granulite occurring in the Bohemian Massif, Czech Republic

*【ECS】Mio Naito¹, Kensuke Yamane¹, Daisuke Nakamura¹, Takao Hirajima², Martin Svojtka³ (1. Okayama Univ., 2. Kyoto Univ., 3. The Czech Academy of Sciences)

11:00 AM - 11:15 AM

[T2-O-5] Do coarse garnet grains preserve chemical compositions at peak metamorphism?

*Takeshi IKEDA¹, Saori GOTO¹ (1. Kyushu University)

11:15 AM - 11:30 AM

[T2-O-6] (entry) Garnet amphibolite and trondhjemite from Wakasa, Tottori Prefecture: Evidence for Paleozoic slab melting?

★「日本地質学会学生優秀発表賞」受賞★

*Mizuki Takahashi¹, Shunsuke Endo¹ (1. Shimane Univ. )

11:30 AM - 11:45 AM

[T2-O-7] P-T conditions of a gneiss discovered from the Ashio mountains in the western part of Tochigi prefecture

*Ippei Kitano¹ (1. The Hokkaido University Museum)

11:45 AM - 12:00 PM

[T2-O-8] Metamorphic pressure-temperature conditions of garnet granulite from the eastern Iratsu body

Tomoki OKAMURA¹, *Daisuke NAKAMURA¹, Mutsuki AOYA² (1. Okayama University, 2. Tokushima University)

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