Updated on 2026/02/20

写真a

 
IMURA Takumi
 

Research Areas

  • Natural Science / Solid earth sciences

  • Natural Science / Human geosciences

Graduating School

  • Akita University, Faculty of Engineering and Resource Science, Department of Earth Science and Technology

    2015.03, Graduated

Graduate School

  • Akita University, Graduate school of International Resource Sciences, Department of Geosciences, Geotechnology, and Materials Engineering For Resources

    Doctor's Course, 2020.03, Completed

Degree

  • Dortor (Science), Akita University, 2020.03

External Career

  • University of Texas at El Paso, Visiting researcher, 2022.05 - 2022.06

  • National Institute of Advanced Industrial Science and Technology, 2024.11 - 2026.08

 

Papers

  • Sulfur isotopic variations in the products of the 1895 CE eruption at Zao volcano (NE Japan): Implications for connecting eruption source and syn-eruptive magmatic-hydrothermal processes, Journal of Volcanology and Geothermal Research, 452 108127, 2024.08

    Takumi Imura, Tsukasa Ohba, Ryohei Takahashi, Pearlyn Manalo, Hinako Sato, Masao Ban, Aoi Hirata, Antonio M, Álvarez-Valero

    Single Author

  • Geological constraints on volcanic-fluid pathways at the Maruyamasawa-Fumarolic-Geothermal-Area, and its relation to the present magmatic-hydrothermal activity in Zao Volcano, Tohoku, Japan, Journal of Volcanology and Geothermal Research, 437 107793, 2023.05

    Takumi Imura, Masao Ban, Kae Tsunematsu, Akio Goto, Jun Okada, Miwa Kuri

    Single Author

  • Mush remobilisation process during historical activity at the Zao volcano, northeastern Japan: Perspectives from plagioclase textures and compositions, Journal of Volcanology and Geothermal Research, 468 108458, 2025.12

    Motohiro Sato, Masao Ban, Takashi Yuguchi, Tatsuya Adachi, Takumi Imura, Mirai Takebe

    Multiple Authorship (Only Japanese)

  • Geology of the December 2022 landslide area in Nishime, Tsuruoka, Yamagata Prefecture, Japan, The Journal of the Geological Society of Japan, 131(1) 251-259, 2025.09

    Isao Motoyama, Takumi Imura, Hiroshi Yagi, Shin-ichi Kagashima, Naoyoshi Iwata, Makoto Kumagai

    Single Author

  • 東北日本弧火山フロント，福島市南西部に分布する鮮新統～更新統「笹森山火山岩類」の地質学的・岩石学的研究, 岩石鉱物科学, 2025.09

    安井光大, 相澤正隆, 井村 匠, 山田哲也, 浅川敬公

    Single Author

  • Growth processes of zircon crystals in a granitic magma chamber, variation in U Pb age, titanium concentration, and Th/U in relation to internal texture, Lithos, 494-495 107909, 2025.02

    Takashi Yuguchi, Kyoka Endo, Satoshi Suzuki, Yasuhiro Ogita, Shuhei Sakata, Tatsunori Yokoyama, Takumi Imura, Takeshi Ohno, Eiji Sasao

    Single Author

  • Geology on Zao-Sulfur Mine and surrounding altered volcanic successions along Zaosawa River on western side of Zao volcano: A “fossil" of the older subvolcanic hydrothermal system, The Journal of the Geological Society of Japan, 2024

    Takumi Imura

    Single Author

  • The genesis of Ba anomaly in pumice lapilli inferred from petrological features: A case study of the caldera-forming eruption of Nigorikawa volcano, Japan, The Journal of the Geological Society of Japan, 129(1) 615-631, 2023.12

    Kaneda Yasuaki, Hasegawa Takeshi, Imura Takumi

    Single Author

  • Paleomagnetism and paleomagnetic dating to large volcanic bombs: an example from the historical eruption of Azuma–Jododaira volcano, NE Japan, Earth, Planets and Space, 75(172) , 2023.11

    Takeshi Hasegawa, Bunta Kikuchi, Shibata Shohei, Yuhji Yamamoto, Takumi Imura, Masao Ban, Kae Tsunematsu, Chie Kusu, Makoto Okada, Tsukasa Ohba

    Single Author

  • Magma had ejected in 1893 CE eruption (Meiji eruption) at Azuma-Jododaira volcano, Fukushima Prefecture: Inferred from paleomagnetic dating for large volcanic bombs around Tsubakurosawa craters, BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN, 68(3) 189-196, 2023.09

    Hasegawa Takeshi, Kikuchi Bunta, Shibata Shohei, Imura Takumi, Ban Masao, Tsunematsu Kae, Yamamoto Yuhji, Ohba Tsukasa, Suzuki Kazuma, Tomaru Atsuharu, Kusu Chie, Okada Makoto

    Single Author

  • Outlining zircon growth in a granitic pluton using 3D cathodoluminescence patterns, U Pb age, titanium concentration, and Th/U: Implications for the magma chamber process of Okueyama granite, Kyushu, Japan, Lithos, 440-441 107026, 2023.03

    Takashi Yuguchi, Daichi Itoh, Tatsunori Yokoyama, Shuhei Sakata, Satoshi Suzuki, Yasuhiro Ogita, Koshi Yagi, Takumi Imura, Satoko Motai, Takeshi Ohno

    Single Author

  • Lahar deposits along the Nigorikawa River in the eastern foot of Zao Volcano, Japan, during the last 8000 years, Journal of Volcanology and Geothermal Research, 431 107685, 2022.09

    Masao Ban, Konosuke Kawashima, Kae Tsunematsu, Kyoko S. Kataoka, Takumi Imura

    Single Author

  • Geologic and Petrologic Characteristics of the Lahar Deposits at the Western Foot of Zao Volcano, Journal of Disaster Research, 17(5) 736-744, 2022.08

    Masao Ban, Konosuke Kawashima, Kae Tsunematsu, Takumi Imura, Kyoko S. Kataoka, Tohru Yamanoi

    Single Author

  • Late Holocene Tephrostratigraphy at Chokai Volcano, Northern Japan, and Contribution to Hazard Assessment, Journal of Disaster Research, 17(5) 724-735, 2022.08

    Tsukasa Ohba, Shintaro Hayashi, Masao Ban, Takumi Imura, Yusuke Minami, Masahiro Endo

    Single Author

  • Simultaneous determination of zircon crystallisation age and temperature: Common thermal evolution of mafic magmatic enclaves and host granites in the Kurobegawa granite, central Japan, Journal of Asian Earth Sciences, 226 , 2022.01

    Takashi Yuguchi, Hayato Yamazaki, Kozue Ishibashi, Shuhei Sakata, Tatsunori Yokoyama, Satoshi, Suzuki, Yasuhiro Ogita, Kazusa Sando, Takumi Imura, Takeshi Ohno

    Multiple Authorship (Only Japanese)

  • Using cathodoluminescence to identify oscillatory zoning of perthitic K-feldspar from the equigranular Toki granite, American Mineralogist, 107(8) 1563-1574, 2021.09

    Yuguchi, T, Nonaka, M, Suzuki, S, Imura, T, Nakashima, K, Nishiyama, T

    Single Author

  • Geologic and petrologic evolution of subvolcanic hydrothermal system: A case on pyroclastic deposits since the 1331 CE eruption at Azuma-Jododaira volcano, central Fukushima, North-Eastern Japan, Journal of Volcanology and Geothermal Research, 2021

    Takumi Imura, Tsukasa Ohba, Kenta Horikoshi

    Multiple Authorship (Only Japanese)

  • Mechanisms of steam-blast eruptions inferred from mineralogy of volcanic ash (Accepted), Journal of Geography, 2021

    Tsukasa OHBA, Takumi IMURA, Yusuke MINAMI, Syahreza Saidina ANGKASA

    Single Author

  • Sr-Nd isotopic composition of Pliocene high-K basalt from Kyurokujima in the back-arc margin, NE Japan arc, Earth Science, 75(2) 17-20, 2021

    AIZAWA Masataka, YASUI Mitsuhiro, IMURA Takumi

    Single Author

  • Anorthosites in Nishiyama volcanic products from the Hachijo-jima island, Izu-Bonin arc: The direct evidence for `plagioclase control' in shallow magma reservoir, Journal of Mineralogical and Petrological Sciences, 2020

    Aizawa, M, Saito, T, Imura, T, Yasui, M

    Multiple Authorship (Only Japanese)

  • Hydrothermal Aluminum-Phosphate-Sulfates in Ash from the 2014 Hydrothermal Eruption at Ontake Volcano, Central Honshu, Japan, Minerals, 9(462) 462, 2019.07

    Takumi Imura 1,*, Yusuke Minami 2, Tsukasa Ohba 1, Akiko Matsumoto 3, Antonio Arribas 1 and Mitsuhiro Nakagawa 3

    Multiple Authorship (Including Foreigners)

  • Characteristics of hydrothermally altered minerals in volcanic products at Tokachidake volcano, central Hokkaido, Japan, Journal of Geological Society of Japan, 125(3) 203-218, 2019.03

    Takumi Imura, Tsukasa Ohba, Mitsuhiro Nakagawa

    Single Author

  • Tephra stratigraphy and ash componentry studies of proximal volcanic products at Mt. Tangkuban Parahu, Indonesia: an insight to Holocene volcanic activity, Indonesian Journal on Geoscience, 6(3) 223-241, 2019

    Syahreza S. Angkasa, Tsukasa Ohba, Takumi Imura, Iwan Setiawan, Mega F. Rosana

    Multiple Authorship (Including Foreigners)

  • Mineralogical study on volcanic ash of the eruption on September 27, 2014 at Ontake volcano, central Japan: correlation with porphyry copper systems, EARTH PLANETS AND SPACE, 68 1-11, 2016.04

    Yusuke Minami, Takumi Imura, Shintaro Hayashi, Tsukasa Ohba

    Multiple Authorship (Only Japanese)

display all >>

Review Papers

  • Magma Discharge Step-diagram of Chokai VolcanoーChanges in Eruption Volume, Especially Since 2,800 Years Agoー, Technical Note of the National Research Institute for Earth Science and Disaster Resilience, 500 29-36, 2024.04

    Tsukasa Ohba, Shintaro Hayashi, Masao Ban, Takumi Imura, Masamichi Ikeda, Aoi Hirata, Eimi Kikuchi

  • An Example of the Magma Discharge Step-diagram: Zao Volcano, Technical Note of the National Research Institute for Earth Science and Disaster Resilience, 500 37-43, 2024.02

    Masao Ban, Teruki Oikawa, Takumi Imura, Kae Tsunematsu, Hideto Jin, Yoshimichi Takahashi

Grant-in-Aid for Scientific Research

  • Grant-in-Aid for Scientific Research(B)，2024.04 - 2027.03

  • Grant-in-Aid for Young Scientists，2021.04 - 2024.03

  • Grant-in-Aid for Scientific Research(B)，2024.04 - 2026.03

  • Grant-in-Aid for Scientific Research(B)，2021.04 - 2025.03

  • Grant-in-Aid for Scientific Research(C)，2020.04 - 2023.03

Other external funds procured

  • Tracing 1893-95CE eruptive sequence of Azuma-Jododaira volcano by geology, lithology, and sedimentlogy of the products，2024.05 - 2025.03，Tracing 1893-95CE eruptive sequence of Azuma-Jododaira volcano by geology, lithology, and sedimentlogy of the products

    Research Institute for Natural Hazards & Disaster Recovery, Niigata University

  • Research base for biological diversity on volcanic environment，2020.10 - 2023.03，Research base for biological diversity on volcanic environment

    Yamagata University

Joint Research activities

  • Material scientific approach for mitigating unpredictable explosive volcanic hazards: an investigation into magma behavior, 2020.04 - 2023.03, Collaboration in Japan

  • Geology, Mineralogy, Petrology on Subvolcanic hydrothermal system at active volcanoes in Japan, 2015.04 - 2020.03, Collaboration in Japan

Presentations

  • PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN, Domestic presentation, 2019, Petrogenesis of anorthosites in Nishiyama volcanic products from Hachijyo-jima island, Izu-Mariana island arc, Other

  • PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN, Domestic presentation, 2018, Petrologic characteristics of non-juvenile ash in Holocene pyroclastic deposits at Azuma volcano, Fukushima, North-eastern Japan, Other

  • Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences, Domestic presentation, 2018, Ash petrology on non-juvenile fragments in pyroclastic deposits: an example from Azuma volcano, Fukushima, North-eastern Japan, Other

  • PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN, Domestic presentation, 2017, Mineralogical occurrence of APS mineral in volcanic product of the Ontake 2014 phreatic eruption, Other

  • Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences, Domestic presentation, 2017, Component diversity of volcanic ash from phreatic eruptions, Other

  • PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN, Domestic presentation, 2017, Geology of Harguit/Us-Tolgoi volcano, Uvurkhangai, Mongolia, Other

  • Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences, Domestic presentation, 2016, Subvolcanic hydrothermal system inferred from mineralogy of hydrothermally altered rocks in volcanic products of Tokachidake volcano, Other

  • Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences, Domestic presentation, 2016, Volcanic-hydrothermal system inferred from altered minerals in hydrothermal eruption ash: Examples from Ontake and Tokachi, Other

  • PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN, Domestic presentation, 2015, A2-06 Mineralogical study of hydrothermally altered fragments in volcanic products at Tokachidake volcano, Japan, Other

  • PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN, Domestic presentation, 2014, UP-13 Mineralogy and S-isotope of Volcanic Ash of the Phreatic Eruption at Ontake Volcano in September 2014, Other

display all >>

 

Academic Activity

  • 山形応用地質研究会, 2020.04 - 2022.03

  • 日本地質学会火山部会, 2022.10 -

  • 山形県廃棄物処理施設技術検討会, 2023.04 -

Social Activities

  • Geological survey on the landslide at Tsuruoka-Nishime area happened in 31th December 2022，2023.01

Media Coverage

  • 2022年12月31日発生鶴岡西目地すべり災害対応 (NHK山形)，2023.01

  • 2022年12月31日発生鶴岡西目地すべり災害対応 (山形新聞)，2023.01

Academic Activities

  • Workshop on “Diversity and Mechanisms of Magmatic-Hydrothermal Phenomena，2025.09

  • 研究集会 箱根山噴火から10年ー水蒸気噴火の前兆把握と防災対応の到達点ー，セッション1:地質学的研究による熱水系構造の解明，2025.01

  • 日本地質学会第131回年会 学会巡検Bコース案内，2024.09

  • 日本地質学会第131回学術大会（LOCメンバー），2024.09

  • 日本地質学会第131回山形大会LOC，2022.10 - 2024.09

  • 日本火山学会2018年度秋季大会ジオツアー「ゆざわジオパークの地熱と水蒸気噴火 」(巡検引率補助・巡検案内補助担当)，2018.09

  • 火山学勉強会2018@岩手山，2018.08

display all >>