Oral presentation

R8: Metamorphic rocks and tectonics

Fri. Sep 15, 2023 9:00 AM - 12:00 PM 821 (Sugimoto Campus)

Chairperson:Shunsuke Endo, Fumiko Higashino

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9:00 AM - 9:15 AM

[R8-01] Trace elements and strontium isotope geochemistry of phengite in pelitic schists from the Sambagawa Belt, central Shikoku

[Presentation award entry]

*Hironobu Harada¹, Tatsuki Tsujimori¹, Maureen Feineman², Kazumasa Aoki³, Tetsumaru Itaya⁴ (1. Tohoku Univ., 2. Penn State, 3. Okayama Univ. Sci., 4. jGnet)

9:15 AM - 9:30 AM

[R8-02] Methane-bearing olivine-hosted fluid inclusions in a contact metamorphosed dolomitic marble from the Miyako area, Kitakami Mountains

*Hironobu Harada¹, Tatsuki Tsujimori¹ (1. Tohoku Univ.)

9:30 AM - 9:45 AM

[R8-03] Amphibolite-Granulite facies metamorphism at the base of island arcs: Clues from Calaton Hill, Tablas island, Philippines

*Gabriel Theophilus V. VALERA¹, Andrew Exequiel S. Tabilog¹, John Kenneth B. Badillo¹, Betchaida D. Payot¹ (1. Univ. of the Philippines)

9:45 AM - 10:00 AM

[R8-04] Brittle fracturing during the closure of the Maizuru back-arc basin

*Larissa NGOMBI MAVOUNGOU¹, Kaushik DAS^1,2, Dyuti Prakash SARKAR^1,2, Jun-ichi ANDO^1,2, Yasutaka HAYASAKA^1,2 (1. Hiroshima Univ., 2. HiPeR, Hiroshima)

10:00 AM - 10:15 AM

[R8-05] Elucidation of slip characteristics in shallow crustal faults from deformation experiments on sandstone gouges within Himalayan Main Frontal Thrust

*Dyuti Prakash SARKAR^1,2, Takehiro Hirose^2,3 (1. Hiroshima University, 2. HiPeR, 3. KCC JAMSTEC)

10:15 AM - 10:30 AM

[R8-06] Handling of the data obtained by quartz Raman barometry

*Yui KOUKETSU¹ (1. Nagoya Univ. Env.)

10:30 AM - 10:45 AM

[2Lecture-201-11-7add] 休憩

10:45 AM - 11:00 AM

[R8-07] Metagabbro from the Sanbagawa belt in western Shikoku, and its roles in deep underplating of subducting oceanic crust

*Shunsuke ENDO¹, Nachi Kurihara¹, Tomoki Taguchi² (1. Shimane University, 2. Waseda University)

11:00 AM - 11:15 AM

[R8-08] An approach to understand the mode of formation of titanite microtube texture in Tumbiana formation stromatolite, Pilbara Craton, western Australia

*Kiran SASIDHARAN¹, Yoshihiro Nakamura², Satish-Kumar Madhusoodhan¹, Ohfuji Hiroaki³ (1. Niigata University, 2. Geological Survey of Japan, AIST, 3. Tohoku University)

11:15 AM - 11:30 AM

[R8-09] Morphology and residual elastic stress of coesite within kayanite from the UHP whiteschist of the Southern Dora-Maira Massif

*Nami Takeda¹, Tatsuki Tsujimori^1,2, Tatsuhiko Kawamoto³, Tetsumaru Itaya⁴ (1. Tohoku Univ. Sci, 2. Tohoku Univ. CNEAS, 3. Shizuoka Univ. Sci, 4. jGnet)

11:30 AM - 11:45 AM

[R8-10] On the evaluation of the phengite K-Ar age of the Lawsonite blueschist: Examples from the Horokanai area in the Kamuikotan Belt and the Hakoishi-unit in the Kurosegawa Belt.

*Takao HIRAJIMA¹, Kosuke Naemura² (1. Kyoto University, 2. Iwate University)

11:45 AM - 12:00 PM

[R8-11] Precipitation of graphite in continental crust from CO₂-rich fluids: Evidence from fluid inclusions, Raman spectroscopy and carbon stable isotopes

*Madhusoodhan SATISH-KUMAR¹, Sasidharan KIRAN¹, Kana UMETSU¹, Sanjeewa MALAVIARACHCHI² (1. Niigata University, 2. University of Peradeniya)

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