Iizuka Tsuyoshi

Affiliation and department：

Research field (2)： Solid earth science , Space and planetary science

Research theme for competitive and other funds (26)：

2024 - 2028 回遊魚の森-川-海ネットワーク構造推定のための大規模な同位体地図の作成とその応用
2023 - 2027 ネオジム同位体比による水産物産地判別手法の確立
2023 - 2026 Advanced modeling of 3-D compositional distribution in the Japan crust for geoneutrino flux prediction to constrain the bulk silicate Earth compositional model
2023 - 2026 Advanced modeling of 3-D compositional distribution in the Japan crust for geoneutrino flux prediction to constrain the bulk silicate Earth compositional model
2022 - 2026 Re-building the early solar system and cosmo chronology based on the isotope heterogeneity in the protosolar disk

2023 - 2025 河川魚の流域ネットワーク構造を最新の地球化学分析・遺伝子解析から明らかにする

2022 - 2025 先端的な地球化学分析を応用した先史時代貝殻遺物の産地判別方法の開発

2021 - 2025 Evolution of the protosolar disk deduced from a combined isotope study of chondrules

2020 - 2024 ウロコの同位体比を利用した、魚類の生活史推定手法の開発とその応用

2020 - 2024 水素の高ダイナミックレンジ定量イメージング

2019 - 2023 高圧実験と地球化学の複合アプローチから地球深部酸化還元状態進化を探る

2019 - 2023 木星の形成は原始太陽系星雲を分裂させたのか? -分化隕石からのアプローチ-

2018 - 2021 Deciphering the evolution of continental crust using monazite

2017 - 2020 Development of high-precision geobarometry for spinel lherzolite xenoliths: Applications to resolving mechanism of the lithosphere thinning

2015 - 2020 Core-mantle chemical composition restricted by neutrino observations

2017 - 2019 Deciphering the supercontinent cycle using monazites from major world rivers

2014 - 2019 Decoding of the early earth's evolution

2016 - 2018 U-Pb dating of ultramafic rocks

2015 - 2018 Speciation of trace elements for the prediction of isotope fractionation

2014 - 2017 In-situ isotope analysis of light elements for better understanding of early Earth's continental crustal evolution

2013 - 2017 Deciphering water contents in planetesimals

2013 - 2015 Development of a new method to decipher water contents in ancient magmas using apatite

2011 - 2012 Deciphering the solar system chronology and planetary chemistry using meteorite zircon

2006 - 2008 アカスタ花崗岩のタングステン及びクロム同位体分析-後期隕石重爆撃説の検証

2003 - 2005 大陸地殻成長率の推定-ジルコンの年代とハフニウム同位体を用いた手法の開発

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Papers (117)：

Tsuyoshi Iizuka, Takazo Shibuya, Takehito Hayakawa, Tetsuya Yokoyama, Ikshu Gautam, Makiko K. Haba, Kengo T. M. Ito, Yuki Hibiya, Akira Yamaguchi, Yoshinari Abe, et al. Late fluid flow in a primitive asteroid revealed by Lu-Hf isotopes in Ryugu. Nature. 2025
Yuki Masuda, Tetsuya Yokoyama, Tsuyoshi Iizuka, Yuki Hibiya. Constraining the origin of isotopic variations in chondritic materials through titanium and chromium isotopic analyses of refractory inclusions. Earth and Planetary Science Letters. 2025. 664. 119447-119447
Kengo T.M. Ito, Sota Niki, Hikaru Hasegawa, Kanoko Kurihara, Tokiyuki Morohoshi, Takashi Mikouchi, Takafumi Hirata, Martin Bizzarro, Tsuyoshi Iizuka. Long-lasting thermal activity on the brachinite parent body revealed by mineralogy, REE chemistry, and U-Pb dating of Ca-phosphates in Northwest Africa 10932. Geochimica et Cosmochimica Acta. 2025. 402. 173-187
Tamihisa Ohta, Masanao Sueyoshi, Momoko Shima, Shinichiro Ida, Tsuyoshi Iizuka. Estimation of tributary-mainstem migration of freshwater fishes by Sr isotope analysis of otoliths. Ecological Research. 2025. 40. 4. 409-421
Magdalena H. Huyskens, Yuri Amelin, Qing-Zhu Yin, Tsuyoshi Iizuka. 238U/235U isotopic variations in angrites and their constituent minerals. Geochimica et Cosmochimica Acta. 2025. 399. 205-220

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MISC (14)：

伊藤健吾, 仁木創太, 栗原かのこ, 諸星暁之, 三河内岳, 平田岳史, 飯塚毅. Long-lasting thermal activity on the brachinite parent body: evidence from Ca-phosphates geochemistry. 日本地球化学会年会要旨集(Web). 2024. 71st
Sanshiro Enomoto, Kenta Ueki, Tsuyoshi Iizuka, Nozomu Takeuchi, Akiko Tanaka, Hiroko Watanabe, Satoru Haraguchi. Trace Element Abundance Modeling with Gamma Distribution for Quantitative Balance Calculations. Geophysical Monograph Series. 2023. 2021. 17-29
伊藤健吾, 仁木創太, 飯塚毅, 平田岳史. Development of in-situ U-Pb dating of ilmenite using LA-MC-ICP-MS. 日本地球化学会年会要旨集(Web). 2023. 70th
鈴木勝彦, 賞雅朝子, 賞雅朝子, 深海雄介, 深海雄介, 飯塚毅, 折橋裕二, 新城竜一, 羽生毅. Tungsten isotopic compositions of Ethiopian and Aden Bay basalts and the Samoan ocean island: implications for core-mantle interaction in their source. 日本地球惑星科学連合大会予稿集(Web). 2020. 2020
原田智代, 飯塚毅, 浜田盛久, 安田敦, 吉本充宏. Chemical evolution of magma at Fuji volcano revealed from trace element and isotope geochemistry. 月刊地球 = Chikyu monthly : カラー版. 2018. 40. 4. 234-241

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Professional career (1)：

博士(理学) (東京工業大学)

Association Membership(s) (1)：

Geochemical Society of Japan

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