論文

• Ryota Moriwaki, Tomohiro Usui, Minato Tobita, Tetsuya Yokoyama. Geochemically heterogeneous Martian mantle inferred from Pb isotope systematics of depleted shergottites, Geochimica et Cosmochimica Acta, Vol. 274, pp. 157-171, Apr. 2020.  公式リンク  
  
• Asobo Nkengmatia Asaah, Tetsuya Yokoyama, Festus T. Aka, Hikaru Iwamori, Takeshi Kuritani, Tomohiro Usui, M. Gountie Dedzo, J. Tamen, T. Hasegawa, M.J. Wirmvem, A.L. Nche. Major/trace elements and Sr–Nd–Pb isotope systematics of lavas from lakes Barombi Mbo and Barombi Koto in the Kumba graben, Cameroon volcanic line: Constraints on petrogenesis, Journal of African Earth Sciences, Jan. 2020.  公式リンク  
  
• Saya Kagami, Makiko Haba, Tetsuya Yokoyama, Tomohiro Usui, Richard C. Greenwood. Geochemistry and Sm‐Nd chronology of a Stannern‐group eucrite, Northwest Africa 7188, Meteoritics & Planetary Science, Nov. 2019.  公式リンク  
  
• Nao Nakanishi, Tetsuya Yokoyama, Satoki Okabayashi, Tomohiro Usui, Hikaru Iwamori. Re-Os isotope systematics and fractionation of siderophile elements in metal phases from CBa chondrites, Meteoritics & Planetary Science, Vol. 53, No. 5, pp. 1051-1065, Jan. 2018.  公式リンク  
  
• Ryota Moriwaki, Tomohiro Usui, Justin I.Simon, John H.Jones, Tetsuya Yokoyama, Minato Tobita. Coupled Pb isotopic and trace element systematics of the Tissint meteorite: Geochemical signatures of the depleted shergottite source mantle, Earth and Planetary Science Letters, Vol. 474, pp. 180-189, June 2017.  公式リンク  
  
• Yusuke Fukami, Minato Tobita, Tetsuya Yokoyama, Ryota Moriwaki, Tomohiro Usui. Precise isotope analysis of sub-nanogram lead by total evaporation thermal ionization mass spectrometry (TE-TIMS) coupled with a Pb-204-Pb-207 double spike method, Journal of Analytical Atomic Spectrometry, Vol. 32, No. 4, pp. 848-857, Feb. 2017.  公式リンク  
  
• Minato Tobita, Tomohiro Usui, Tetsuya Yokoyama. New constraints on shergottite petrogenesis from analysis of Pb isotopic compositional space: Implications for mantle heterogeneity and crustal assimilation on Mars, Geochemical Journal, Vol. 51, No. 1, pp. 81-94, Jan. 2017.  公式リンク  
  
• Asobo Nkengmatia Asaah, Tetsuya Yokoyama, Aka, Festus T., Tomohiro Usui, Takeshi Kuritani, Wirmvem, Mengnjo J., Hikaru Iwamori, Fozing, Eric M., Tamen, Jules, Mofor, Gilbert Z., Takeshi OHBA, Tanyileke, Gregory, Hell, J. V.. Geochemistry of lavas from maar-bearing volcanoes in the Oku Volcanic Group of the Cameroon Volcanic Line, Chemical Geology, Vol. 406, pp. 55-69, 2015.  公式リンク  
  
• Asobo Nkengmatia Asaah, Tetsuya Yokoyama, Aka, Festus T., Tomohiro Usui, Wirmvem, Mengnjo J., Tchamabe, Boris Chako, Takeshi OHBA, Tanyileke, Gregory, Hell, J. V.. A comparative review of petrogenetic processes beneath the Cameroon Volcanic Line: Geochemical constraints, Geoscience Frontiers, Vol. 6, No. 4, pp. 557-570, 2015.  公式リンク  
  

著書

• 青木和光, 阿部 豊, 生駒大洋, 石川遼子, 石渡正樹, 井田 茂, 伊藤祐一, 上野雄一郎, 臼井寛裕, 大西紀和, 大宮正士, 奥住 聡, 門屋辰太郎, 木村 淳, 葛原昌幸, 國友正信, 黒崎健二, 玄田英典, 洪鵬, 小久保英一郎, 小谷隆行, 小玉貴則, 小林 浩, 小宮 剛, 佐々木貴教, 佐藤文衛, 渋谷岳造, 須田拓馬, 住 貴宏, 関根康人, 千秋博紀, 空華智子, 髙田将郎, 高橋 太, 髙橋康人, 竹内 拓, 竹田洋一, 田近英一, 橘 省吾, 舘野繁彦, 田中秀和, 田村元秀, 長澤真樹子, 中本泰史, 成田憲保, はしもとじょーじ, 橋本 淳, 羽馬哲也, 濱野景子, 原川紘季, 原田真理子, 樋口有理可, 平林 久, 深川美里, 福井暁彦, 藤井友香, 藤原英明, 堀 安範, 前田太郎, 増田賢人, 町田正博, 松尾太郎, 眞山 聡, 武藤恭之, 村上 豪, 百瀬宗武, 森島龍司, 安井千香子 東京大学 矢野太平, 薮田ひかる, 山岸明彦, 山口正輝, 吉田 敬. 系外惑星の事典, 朝倉書店, Sept. 2016.

国際会議発表 (査読なし・不明)

• MATSU’URA F, Nakada R, Ueno Y, Sawaki Y, Saitoh M, Kajitani I, Usui T. Iron Limitation Enhance Organic Matter Sulfurization within the Limestones of the Ediacaran Dengying Formation, Goldschmidt Conference, June 2020.

国内会議発表 (査読なし・不明)

• Fumihiro Matsu'ura, 中田 亮一, Yuichiro Ueno, Na, 斎藤 誠史, Iori Kajitani, Tomohiro Usui. Reactive iron supply control dominant sulfur species in the limestones of Ediacaran Doushantuo and Dengying Formations, JpGU-AGU Joint Meeting 2020, May 2020.

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