Session Details
[2oral301-11]T1 ［Topic Session］Metamorphic rocks and tectonics）
Mon. Sep 9, 2024 8:45 AM - 12:00 PM JST
Mon. Sep 9, 2024 11:45 PM - 3:00 AM UTC
Mon. Sep 9, 2024 11:45 PM - 3:00 AM UTC
oral room 3(General Education_Section1-122)
Chiar:Ippei Kitano(The Hokkaido University Museum, Hokkaido University), Ryosuke OYANAGI(Kokushikan University)
[T1-O-1]Albitization process of a pelitic schist in the Nomo unit, Nagasaki Metamorphic Complex: pulverization and reaction-enhanced permeability
*Yasushi MORI1, Naoko KUROKI-SATO, Miki SHIGENO1, Tadao NISHIYAMA2 (1. Kitakyushu Museum of Natural History and Human History, 2. Kumamoto University)
[T1-O-2]Geometrical features of pores formed by hydrothermal alteration of feldspar: analysis by persistent homology
*Shuhei Fujiwara1, Atsushi Okamoto1, Kazuki Yoshida2, Tomohiro Ishii2, Masao Kimura2, Daiki Kido2 (1. Graduate School of Environmental Studies, Tohoku University, 2. KEK)
[T1-O-3]Origin and significance of very fine-grained hydrous peridotite micro-veinlets cutting metamorphic olivines in high-pressure metamorphosed serpentinite from Omi Mélange, Japan
*Kohei SHISEKI1, Tatsuki TSUJIMORI1 (1. Tohoku University)
[T1-O-4]Petrology and tectonic setting of serpentinite melanges from the Nomo unit, Nagasaki Metamorphic Complex
*Tadao NISHIYAMA1, Shigeki Toyama1, Yasushi Mori2, Miki Shigeno2 (1. Kumamoto University, 2. Kitakyushu Museum of Natural History and Human History)
[T1-O-5]Thermodynamic considerations on the chemical properties of aqueous fluids in equilibrium with high-pressure metamorphic rocks and serpentinites
*Tatsuki Tsujimori1, Ryo Fukushima1 (1. Tohoku University)
[T1-O-6]The importance of CO2 metasomatism: Experimental implication to slow earthquakes caused by heterogeneity of fluid-rock interaction
*Shunya Okino1, Atsushi Okamoto1, Yukiko Kita2, Sando Sawa2, Jun Muto2 (1. Tohoku University Graduate School of Environmental Studies, 2. Department of EARTH SCIENCES, Graduate School of Science, Tohoku University)
[2oral301-11-7add]Break
[T1-O-7][Invited]Multi-geochronology of metamorphism based on recent developments in laser ablation ICP mass spectrometry
*Sota NIKI1, Kenta Yoshida2, Hikaru Sawada3, Ryosuke Oyanagi4, Takafumi Hirata5 (1. Nagoya Univ., 2. JAMSTEC, 3. Univ. Toyama, 4. Kokushikan Univ., 5. Univ. Tokyo)
【ハイライト講演】本セッションの招待講演である．講演者は，これまで新しい年代測定技術の開発に取り組んでこられた．講演では，変成作用の年代を推定するための LA-ICP-MS 分析の基礎から，変成岩への適用事例や最新の鉱物の年代測定手法の紹介がなされる．（ハイライト講演とは．．．）
[T1-O-8]In-situ U–Pb dating of almandine garnet reveals the cooling timescale of oceanic crust: An example from Guatemalan lawsonite eclogite
*Ryo FUKUSHIMA1, Tatsuki TSUJIMORI1, Aratz BERANOAGUIRRE2, Richard ALBERT2, Axel GERDES2, Horst MARSCHALL2 (1. Tohoku Univeristy, 2. Goethe-University Frankfurt am Main)
【ハイライト講演】変成作用の年代を決定することは，地球のテクトニックな歴史や物質循環の解読のために非常に重要である．この講演では，世界最先端の分析技術を活用し，従来計測対象外であった鉱物（鉄に富む柘榴石）から変成作用の年代を読み解くことに成功している．この結果を元に，地球のダイナミックな歴史がこれまで以上の解像度で議論されることが期待される．（ハイライト講演とは．．．）
[T1-O-9]Age and petrogenesis of trondhjemite associated with garnet amphibolite from Wakasa, Tottori Prefecture, SW Japan
*Mizuki Takahashi1, Shunsuke Endo1, Atsushi Kamei1 (1. Shimane Univ.)
[T1-O-10]Rheological property of pelitic schists and its relationship to the Nankai Trough seismogenic zone
*Suzuka Yagi1 (1. Hiroshima University)
[T1-O-11]Estimation of maximum shear stress along the subduction plate interface and reexamination of subduction zone thermal modeling: example from the Late Cretaceous Sambagawa subduction zone
*Yukinojo KOYAMA1, Simon WALLIS1, Takayoshi NAGAYA2, Mutsuki AOYA3 (1. Department of Earth and Planetary Science, The University of Tokyo, 2. Department of Environmental Science, Tokyo Gakugei University, 3. Graduate School of Technology, Industrial and Social Sciences, Tokushima University)