OGAWA Yasumasa

写真a

Affiliation

Graduate School of International Resource Sciences  Department of Earth Resource Engineering and Environmental Science 

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Research Interests 【 display / non-display 】

  • 環境化学

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Graduating School 【 display / non-display 】

  • 1995.04
    -
    1999.03

    Keio University   Faculty of Science and Engineering   Graduated

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Graduate School 【 display / non-display 】

  • 2001.04
    -
    2005.03

    Keio University  Graduate School, Division of Science and Engineering  Doctor's Course  Completed

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Campus Career 【 display / non-display 】

  • 2014.04
    -
    Now

    Akita University   Faculty of International Resource Sciences   Associate Professor  

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Research Areas 【 display / non-display 】

  • Natural Science / Space and planetary sciences

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Thesis for a degree 【 display / non-display 】

  • The elemental mobilities in the submarine hydrothermal systems - in the case of the Kuroko mineralization -

    An experimental study on felsic rock - artificial seawater interaction; implications for the hydrothermal alteration and sulfate formation in the Kuroko minig area of Japan 

    34   813 - 821   2005.03

    Domestic Co-author

    黒鉱鉱床地帯に広く分布する酸性岩と硫酸イオンを含まない人工海水との反応を300℃にて行った．反応初期は，ナトリウム，カリウム，ルビジウム，セシウムが溶出し，マグネシウム，カルシウム，ストロンチウムを疑似時海水から取り込むアルカリ元素ーアルカリ土類元素の交換反応が進行し，反応後期には，一度取り込まれたカルシウム，ストロンチウムが疑似海水中へと再び放出されることでモンモリロナイト化が進行することを見出した．これらの結果より，黒鉱鉱床に大量に存在する硫酸縁鉱物は，モンモリロナイト化後期課程以降に形成されたものと推測される．

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Research Achievements 【 display / non-display 】

    ◆Original paper【 display / non-display 】

  • Geochemical characteristics and estimation of groundwater pollution in catchment areas of Timok and Pek Rivers, Eastern Serbia: Determination of early-stage groundwater pollution in mining areas

    Adamovic D., Ishiyama D., Kawaraya H., Ogawa Y., Zoran S.

    GROUNDWATER FOR SUSTAINABLE DEVELOPMENT ( ELSEVIER )  16   100719   2022.02

    Research paper (journal)   Single author

    セルビア東部Bor鉱山周辺の地下水への鉱山活動の影響調査。

    DOI

  • Geochemical mobility of rare earth elements (REEs) and actinides (U and Th) originating from Kusatsu acid thermal waters during neutralization and river transport: Effect of aqueous speciation on sorption onto suspended materials and fractionation among REEs and actinides

    Ogawa　Y., Ishiyama D., Đorđievski S., Petrović J., Milivojević M., Saini-Eidukat B, Wood S.A

    Chemical Geology ( ELSEVIER )  586 ( 30 ) 120559   2021.12

    Research paper (journal)   Single author

    草津酸性泉は湯川、白砂川を経て吾妻川へと流入する。草津酸性泉由来のレアアース、トリウム、ウランは下流に向かうにつれ、懸濁物に吸着する。ウランは弱酸性領域まで懸濁物への吸着が生じるが、中性～弱アルカリ性領域ではCO3錯体を形成するため吸着は起こりにくくなり、溶存成分として流下する。レアアースは単純にｐH上昇により懸濁物への吸着が促進されるが、軽希土類の方が吸着されにくい傾向がある。

    DOI

  • Geochemistry of natural acid rock drainage in the Judith Mountains, Montana, part 2: Seasonal and spatial trends in Chicago Gulch

    Gammons C.H., Edinberg S.C., Parker S.R., Ogawa Y.

    Applied Geochemistry ( ELSEVIER )  129   104968   2021.06

    Research paper (journal)   Single author

    アメリカモンタナ州Judith Mountain山頂部から発生する酸性水中の有害成分の流下過程の地球化学的挙動について

    DOI

  • Classification of coal fly ash based on pH, CaO content, glassy components, and leachability of toxic elements

    Seki T, Ogawa Y, Inoue C

    Environmental monitering and assessment   191 ( 6 ) 358   2019.06  [Refereed]

    Research paper (journal)   Domestic Co-author

  • Fractionation of rare earth elements (REEs) and actinides (U and Th) originating from acid thermal water during artificial and natural neutralization processes of surface waters

    Y. Ogawa, D. Ishiyama, N. Shikazono, K. Iwane, T. Hoshino, M. Kajiwara, N. Tsuchiya, B. Saini-Eidukat, S.A. Wood

    Geochimica et Cosmochimica Acta   249   247 - 262   2019.01  [Refereed]

    Research paper (journal)   Domestic Co-author

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Presentations 【 display / non-display 】

  • Effect of hydrous ferric and aluminum oxides for transport of As, Cd and Pb in the rivers acidicied by the Kusatsu thermal waters in Japan

    Y Ogawa, D Ishiyama, S. Dordievski, J. Petrovic, M. Milivojevic

    Goldschmidt2019  2019.08  -  2019.08 

  • Significance of integrated researches based on the environmental evaluation and metal recovery from mining waste materials with special reference to the role of environmental evaluation

    Ishiyama D, Ogawa Y, Đorđievski S, Masuda N, Shibayama A, Stevanović Z, Obradović L.

    Proceedings of International SATREPS conference, Mining and Environment in Future  (Bor, Serbia)  2018.10  -  2018.10 

  • The Fate of Heavy Metals in Acidic Rivers and Sedimentation Mechanism

    Ogawa Y, Ishiyama D, Đorđievski S, Saini-Eidukat B, Wood S, Gammons C

    Goldschmidt 2018  (Boston, USA)  2018.08  -  2018.08 

  • Spatial Distribution and Mobility of Elements in River Water and River Bed Sediments from Eastern Serbia

    Đorđievski S, Ishiyama D, Ogawa Y, Stevanović Z

    Goldschmidt 2018  (Boston, USA)  2018.08  -  2018.08 

  • Transport and speciation of trace metals in Tama – Omono River System in Akita Prefecture, Japan. Goldschmidt Conference

    Pham, Q. M, Ishiyama, D., Ogawa, Y., Fukuyama, M.

    Goldschmidt 2017  (Paris, France)  2017.08  -  2017.08 

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Academic Activity 【 display / non-display 】

  • 2019.04
    -
    Now

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