J-GLOBAL ID:200901030791634363   Update date: Mar. 16, 2021

Ichiyama Yuji

イチヤマ ユウジ | Ichiyama Yuji
Affiliation and department:
Research field  (1): Solid earth science
Research keywords  (7): 沈み込み帯 ,  Crust ,  Mantle ,  Oceanic plate ,  Ophiolite ,  Geology ,  Petrology
Research theme for competitive and other funds  (7):
  • 2019 - 2022 Oceanic plateau-origin rocks in orogenic belts: Towards understanding the genesis of oceanic LIP
  • 2018 - 2021 An integrated study of plate interface rocks: Understanding the unread processes and secular changes by in-situ isotope analyses
  • 2019 - 2020 隠岐島後産マントル捕獲岩から解読する日本海形成過程
  • 2016 - 2019 Genesis and secular changes of Pacific LIPs: Approch from plume-type ophiolites in Japan
  • 2017 - 2019 前弧域の物質循環学:IODP Exp.366マリアナ弧蛇紋岩海山掘削試料を用いた解析
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Papers (29):
  • Yuji Ichiyama, Tatsuki Tsujimori, Patricia Fryer, Katsuyoshi Michibayashi, Akihiro Tamura, Tomoaki Morishita. Temporal and spatial mineralogical changes in clasts from Mariana serpentinite mud volcanoes: Cooling of the hot forearc-mantle at subduction initiation. Lithos. 2021. 384-385
  • Ayaka Okamoto, Yuji Ichiyama, Akihiro Tamura, Tomoaki Morishita. Slab-fluid metasomatism in the early paleozoic forearc mantle deduced from the motai serpentinites, south Kitakami Belt, northeast Japan. Island Arc. 2021. 30. 1. 1-16
  • Yuji Ichiyama, Takahito Koshiba, Hisatoshi Ito, Akihiro Tamura. Geochemistry and magmatic zircon U-Pb dating of amphibolite blocks in the Omi serpentinite melange, north central Japan: Possible subduction of the Cambrian oceanic crust. JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES. 2020. 115. 4. 313-321
  • Patricia Fryer, C Geoffrey Wheat, Trevor Williams, Christopher Kelley, Kevin Johnson, Jeffrey Ryan, Walter Kurz, John Shervais, Elmar Albers, Barbara Bekins, et al. Mariana serpentinite mud volcanism exhumes subducted seamount materials: implications for the origin of life. Philosophical transactions. Series A, Mathematical, physical, and engineering sciences. 2020. 378. 2165. 20180425-20180425
  • Ichiyama, Y., Ito, H., Tamura, A., Arai, S. Magma mixing model for the genesis of middle crust in the Izu-Bonin-Mariana arc: evidence from plutonic rocks in the Mineoka-Setogawa ophiolitic mélange, central Japan. International Geology Review. 2020. 62. 503-521
MISC (3):
Books (1):
  • 夜久野町史,第1巻 自然科学・民俗編
Lectures and oral presentations  (23):
  • Mantle Section Collected by Oman Drilling Project Phase 2: Comparison with the Izu-Mariana Serpentinites
    (International Conference on Ophiolites and the Oceanic Lithosphere 2020)
  • Mineralogical and petrological observation of core samples drilled from an ophiolite mantle section: Oman Drilling Project Holes BA1B, BA3A, and BA4A
    (Goldscmidt Conference 2019)
  • X-ray computed tomography characterization of the distribution of biogenic apatite and sedimentary structures in pelagic clay around Minamitorishima Island, western North Pacific
    (JpGU 2019)
  • Geochemistry and zircon U-Pb ages of mafic rocks in the Mikabu and Sorachi-Yezo belts: Comparison with the Shatsky Rise
    (JpGU 2019)
  • Petrological observation of core samples drilled from a mantle section of the Oman ophiolite: A preliminary report of the Oman Drilling Project Phase 2
    (JpGU 2019)
Education (3):
  • 2002 - 2005 Kanazawa University
  • 2000 - 2002 Kanazawa University
  • 1996 - 2000 Kanazawa University Department of Earth Sciences
Professional career (1):
  • 博士(理学) (金沢大学)
Work history (4):
  • 2020/10 - 現在 千葉大学 理学研究院 准教授
  • 2015/03 - 2020/09 千葉大学理学研究院 助教
  • 2008/01 - 2015/02 Japan Agency for Marine-Earth Science and Technology
  • 2005/04 - 2008/01 社団法人宝石貴金属協会 研究員
Committee career (2):
  • 2019/07 - 現在 日本地球惑星科学連合 選挙管理委員
  • 2015/05 - 現在 Journal of Mineralogical and Petrological Sciences Associate Editor
Awards (1):
  • 2008/09 - 日本鉱物科学会 研究奨励賞
Association Membership(s) (3):
JAPAN GEOSCIENCE UNION ,  Japan Association of Mineralogical Sciences ,  THE GEOLOGICAL SOCIETY OF JAPAN
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