Annual Meeting of the Geological Society of Japan

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T1. Metamorphic rocks and tectonics

Re-examination of the origins for the Jurassic plutonic rocks in the Hida belt using geochemical modeling

Kodai MIKAMI, Tomoyuki MIZUKAMI

Session ID: T1-O-1
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_1

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Partial melting of lower crust and compositional variation in S-type granitic magma in the Osuzuyama acidic rocks, Miyazaki prefecture, SW Japan.

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Takuto Kitashiro, Toshiaki SHIMURA

Session ID: T1-O-2
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_2

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Subsurface lithological structure in the San’in region inferred from metagranitoid xenoliths from Mt. Daisen, Tottori Prefecture, Japan

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Mizuki Takahashi, Shunsuke Endo, Nobuhiko Nakano, Tatsuro Adachi

Session ID: T1-O-3
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_3

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Zincian spinel + quartz + andalusite assemblage from the Kanenari metamorphic rock, Un-nan area, Shimane prefecture, SW Japan

Toshiaki Shimura, Kiri Yamane, Shoichi Gota

Session ID: T1-O-4
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_4

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Rutiles indicating ultrahigh-temperature metamorphism in a garnet–biotite gneiss from Brattnipene, Sør Rondane Mountains, East Antarctica

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Hiroto GONDO, Tetsuo KAWAKAMI, Fumiko HIGASHINO, Tatsuro ADACHI, Masao ...

Session ID: T1-O-5
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_5

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Metamorphic pressure-temperature conditions of garnet peridotite from the eastern part of the Bohemian massif

Daisuke NAKAMURA, Utuse YOSHIDA

Session ID: T1-O-6
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_6

CONFERENCE PROCEEDINGS FREE ACCESS

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[Invited] Tectonic evolution of Northeast Asia and the origin of Proto-Japan during the Paleozoic to Mesozoic

Kenta KAWAGUCHI

Session ID: T1-O-7
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_7

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P–T evolution and U–Pb ages of the Komori metamorphic rocks in the northern subzone, Maizuru Terrane: Implications for Tectonics in East Asia

Sota Muroi, Kenta Kawaguchi, Kaushik Das, Nobuhiko Nakano, Yasutaka Ha ...

Session ID: T1-O-8
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_8

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Hydrothermal Alteration and Porosity Evolution of Lower Crust: Plagioclase Replacement by Epidote in the Khantaishir ophiolite, Western Mongolia

OTGONBAYAR DANDAR, ATSUSHI OKAMOTO, MASAOKI UNO, NORIYOSHI TSUCHIYA

Session ID: T1-O-9
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_9

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Pressure-temperature structure of high-temperature metamorphic rocks around Mt. Raizan and the Itoshima Peninsula, northwestern Kyushu: a possible western extension of the Ryoke arc.

Kazuhiro Miyazaki, Yayoi Muraoka, Takeshi Ikeda, Tadai Nishiyama

Session ID: T1-O-10
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_10

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K-Ar geochronology of Abukuma metamorphic belt in NE Japan: towards a formation model of the plutonic metamorphic belt over 1,000km

Tetsumaru ITAYA

Session ID: T1-O-11
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_11

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Metamorphic History of Serpentinite and Amphibolite in the Sangun-Renge Belt exposed at Sasaguri, Fukuoka Prefecture

Swarnaa ANNADURAI MUNUSAMY, Jun-ichi ANDO, Kaushik DAS, Dyuti Prakash ...

Session ID: T1-O-12
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_12

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Strain Distribution and Formation Process of Deep Plate Interface Inferred from the Aka-jima Shear Zone (newly defined) in the Kerama Islands, Okinawa

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Kei TAKAHASHI, Asuka YAMAGUCHI, Makoto OTSUBO

Session ID: T1-O-13
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_13

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Extraction of serpentinite distribution using drone-based magnetometry: A case study from the Sanbagawa Belt, northern Akaishi Mountains

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Nanami KUNIYA, Hiroshi MORI, Ryuta SHUKUWA, Yuto YASUI, Kaho NOBUHARA, ...

Session ID: T1-O-14
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_14

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Trace element changes through the contact metamorphism of ultramafic rocks: A case study of the Tari-Misaka complex, Inner Zone of Southwest Japan.

Makito Narumi, Yuji Ichiyama, Akihiro Tamura, Tomoaki Morishita

Session ID: T1-O-15
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_15

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Detection of heterogeneous graphitization in contact metamorphic rocks using Raman spectral analysis of carbonaceous material in the Sanbagawa Belt, northern Akaishi Mountains

Hiroshi MORI, Yuho HAYAKAWA, Tomoki TAGUCHI, Ken YAMAOKA, Kazuhiro OZA ...

Session ID: T1-O-16
Published: 2025
Released on J-STAGE: March 30, 2007

DOIhttps://doi.org/10.14863/geosocabst.2025.0_16

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Foliation-lineation analysis of hornfels: a case study in Tanzawa Mountains

Toshiaki MASUDA, Miki TASAKA, Takumi MATSUMOTO, Ryota OHTAKE, Megumi K ...

Session ID: T1-O-17
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_17

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Quantitative evaluation of retrograde metamorphism and visualization of spatial patterns using dimensionality reduction of PXRD spectra: a case study from the Eastern Iratsu body in the Sanbagawa metamorphic belt, Shikoku, Japan

Ryoga Tanabe, Matsuno Satoshi, OTGONBAYAR DANDAR, Keiichi Osaka, Uno M ...

Session ID: T1-O-18
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_18

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Timing of mantle wedge alteration events recorded by baddeleyite aggregates in the Higuchi serpentinite body, Sanbagawa belt

Hikaru Sawada, Ryosuke Oyanagi, Sota Niki, Kazuki Yoshida, Mitsuhiro N ...

Session ID: T1-O-19
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_19

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Geological constraints on slab-mantle coupling depths in subduction zones from the Dora-Maira UHP unit (western Alps)

Hikaru HOSHI, Simon WALLIS

Session ID: T1-O-20
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_20

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Discovery of the serpentine matrix melange with high-grade metamorphic blocks in the Saganoseki Peninsula, Oita Prefecture.

Atsushi MIYASHITA, Jouji MURAKAMI, Akira KASAGI, Tatsuki TSUJIMORI

Session ID: T1-O-21
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_21

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Comparative study of serpentinite mélanges in the Nishisonogi unit and the Nomo unit of the Nagasaki Metamorphic Complex

Tadao NISHIYAMA, Miki Shigeno, Yasushi Mori, Kazuhiro Miyazaki

Session ID: T1-O-22
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_22

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Spherule in the serpentinite matrix and experimental study of spherule formation

Mitsuhiro TORIUMI

Session ID: T1-O-23
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_23

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Pseudosection analysis and P-T estimations of high-grade metamorphic rocks from the Higo metamorphic terrane, central Kyushu, SW Japan.

Tomoyuki KOBAYASHI

Session ID: T1-P-1
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_24

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Structural evolution of the Instekleppane, Lutzow-Holm Complex: Deformation patterns in high-grade zones of east Antarctica

Sreehari Lakshmanan, Tatsuro Adachi, Yuki Mori, Tomokazu Hokada

Session ID: T1-P-2
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_25

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Distribution and tectonic evolution of the Latest Archean TTG body from the western Lützow-Holm Complex, East Antarctica

Nobuhiko Nakano, Sotaro Baba, Shin-ichi Kagashima, Fransiska Ayuni Wah ...

Session ID: T1-P-3
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_26

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Thermal structure of the contact metamorphic aureole around the Kinpusan granite, Kanto Mountains, Japan

Ken YAMAOKA, Daichi Murakami, Akiko Nakazawa, Kaho Nobuhara, Hiroshi M ...

Session ID: T1-P-4
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_27

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Geochronology of Migmatite from West Ongul Island, Lützow-Holm Complex, East Antarctica

Shin-ichi KAGASHIMA, Sotaro BABA, Nobuhiko NAKANO, Kenichiro TANI

Session ID: T1-P-5
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_28

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Role of earthquake cycles and solution transfer in lower crustal deformation: Observations from Napier Complex, East Antarctica

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Ryo MURAYAMA, Lakshmanan Sreehari

Session ID: T1-P-6
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_29

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Reactions responsible for the formation of the reaction zones associated with mable in Ryoke metamorphic complex in the Yanai area.

Kaito Nagaoka, Takeshi Ikeda

Session ID: T1-P-7
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_30

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Metamorphism and detrital zircon U-Pb ages of upper unit of the Hidaka metamorphic belt, Erimo, Hokkaido

Shuji Takami, Hayato Ueda, Tsuyoshi Toyoshima, Chihiro Takahashi

Session ID: T1-P-8
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_31

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Nanogranite inclusions in garnet gneiss from Skallen in Lützow-Holm Complex, East Antarctica

Umon Matsumoto, Takeshi Ikeda

Session ID: T1-P-9
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_32

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Hercynite - Corundum Schist from the Ryoke Metamorphic Rocks, Takanawa Peninsula, Ehime Prefecture, SW Japan

Haruto TSUBAKI, Susumu SHIBUTANI

Session ID: T1-P-10
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_33

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Double zoned garnet from Sanbagawa complex in the Saganoseki Peninsula, eastern Kyushu: A possibility of an advection from beneath Cretaceous forearc to the Sanbagawa subduction.

Kazuhiro Miyazaki, Yoshihiro Nakamura, Mitsuhiro Nagata

Session ID: T1-P-11
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_34

CONFERENCE PROCEEDINGS FREE ACCESS

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Coarse-grained garnet in a quartz vein of the Sanbagawa schists from Nagatoro area,japan

Masato KATO, Mutsuko Inui, Katsuyoshi Midhibayashi

Session ID: T1-P-12
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_35

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Progress of hydrothermal alteration of ultramafic rocks in the Tosa Megamullion.

Ryosuke Oyanagi, Yasuhiko Ohara

Session ID: T1-P-13
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_36

CONFERENCE PROCEEDINGS FREE ACCESS

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Metasomatism accompanied by mantle carbonation reaction at slab-mantle interface: An example from Sarutagawa region in Sambagawa metamorphic belt, central Shikoku

Shunya Okino, Atsushi Okamoto, Madhusoodhan Satish Kumar

Session ID: T1-P-14
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_37

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Metamorphic reaction and fluid behavior in ultramafic rocks associated with contact metamorphism: a case study of the Sanbagawa Belt, Northern Akaishi Mountains

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Kaho NOBUHARA, Hiroshi MORI, Yurie TSUKISHIMA, Takayoshi NAGAYA, Takaf ...

Session ID: T1-P-15
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_38

CONFERENCE PROCEEDINGS FREE ACCESS

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Ultramafic bodies in Sanbagawa metamorphic belt, SW Japan

Koki AIDA, Simon Richard WALLIS

Session ID: T1-P-16
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_39

CONFERENCE PROCEEDINGS FREE ACCESS

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Raman spectroscopic analysis of the Kawai Mylonite in Kishiwada area, Osaka Prefecture

Yu ARAKI, Kazuya SHIMOOKA, Motohiro TUBOI

Session ID: T1-P-17
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_40

CONFERENCE PROCEEDINGS FREE ACCESS

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Relationship between metamorphic temperature and degree of graphitization and microstructural development of quartz and albite in Sambagawa pelitic schist, Tenryu area

Aoi Harada, Yui Kouketsu, Katsuyoshi Michibayashi

Session ID: T1-P-18
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_41

CONFERENCE PROCEEDINGS FREE ACCESS

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Petrological characteristics and crystal fabric of two types of residual peridotites in the South Mariana Forearc Ridge, Mariana Trench

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Kana MIYATA, Shigeki Uehara, Yasuhiko Ohara, Katsuyoshi Michibayashi

Session ID: T1-P-19
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_42

CONFERENCE PROCEEDINGS FREE ACCESS

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Construction of Mohr-cyclides for finite deformation: For practical 3D finite deformation analysis

Shogo SOEJIMA

Session ID: T1-P-20
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_43

CONFERENCE PROCEEDINGS FREE ACCESS

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Growth mechanism of coalesced grains of garnet in the Yanai area recognized by Electron Backscatter Diffraction

Risa HAYASHI, Takeshi IKEDA, Yoshihiro Nakamura , Yumiko Harigane

Session ID: T1-P-21
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_44

CONFERENCE PROCEEDINGS FREE ACCESS

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P–T evolution and tectonic implication of metamorphic rocks in Nam Dinh, southeasternmost part of the Day Nui Con Voi metamorphic complex, northern Vietnam

Ippei KITANO, Vuong Thi Bui

Session ID: T1-P-22
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_45

CONFERENCE PROCEEDINGS FREE ACCESS

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Examination of partial melting model for the geochemical variation of the dioritic-gabbroic unit in the Kamioka area, the Hida belt

Tomoyuki Mizukami, Chiori Sugahara, Kodai Mikami, Norikatsu Akizawa, A ...

Session ID: T1-P-23
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_46

CONFERENCE PROCEEDINGS FREE ACCESS

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Metamorphic rocks with distinct metamorphic histories occurring in the Yoshimi Hills, Kanto Mountains.

Tatsuro Adachi, Ichiro Iwasaki

Session ID: T1-P-24
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_47

CONFERENCE PROCEEDINGS FREE ACCESS

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Deformation history of the Nishisonogi metamorphic rocks

Miki SHIGENO, Yasushi MORI, Kazuo INOUE

Session ID: T1-P-25
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_48

CONFERENCE PROCEEDINGS FREE ACCESS

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Petrography and P–T estimations of the Kamuikotan metamorphic rocks in Hobetsu-Fukuyama area, Mukawa town, Hokkaido

Taiki Minagawa, Ippei Kitano

Session ID: T1-P-26
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_49

CONFERENCE PROCEEDINGS FREE ACCESS

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Preliminary study on the formation of jadeite and glaucophane in jadeite-quartz meta-tonalite in the Kamuikotan Zone, Hokkaido, Japan

Hayato Ueda, Masaki Nakano

Session ID: T1-P-27
Published: 2025
Released on J-STAGE: March 27, 2026

DOIhttps://doi.org/10.14863/geosocabst.2025.0_50

CONFERENCE PROCEEDINGS FREE ACCESS

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