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  1. 吉田,真理夫 (ヨシダ,マリオ)
    2. https://www.lib.hokudai.ac.jp/dissertations/list/?FF=4&LANG=en&ACCN=1104003931
    Title in Japanese一連の水蒸気爆発-マグマ水蒸気爆発に関する噴出火口付近での火山灰層序学的および記載岩石学的研究：1977-1978年有珠山噴火を例に
    Title in EnglishTephra-stratigraphical and lithological study on the phreatic-phreatomagmatic sequence near the crater : Case study on the 1977-1978 eruption of Usu volcano, southwestern Hokkaido
    Year of conferral of degrees1995
    Type of degree / Kind of academic degree1（課程博士） / 040（博士(環境科学)）
    Report number3931
    Date of conferral of degrees1996-03-25
    The primary examiner / A deputy examiner小野,有五 / 平川,一臣　新井田,清信　岡田,弘
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    Summary3931_yoshida.pdf