Tephra-stratigraphical and lithological study on the phreatic-phreatomagmatic sequence near the crater : case study on the 1977-1978 eruption of Usu volcano, southwestern Hokkaido 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
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著者
書誌事項
- タイトル
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Tephra-stratigraphical and lithological study on the phreatic-phreatomagmatic sequence near the crater : case study on the 1977-1978 eruption of Usu volcano, southwestern Hokkaido
- タイトル別名
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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
- 著者名
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吉田, 真理夫
- 著者別名
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ヨシダ, マリオ
- 学位授与大学
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北海道大学
- 取得学位
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博士 (環境科学)
- 学位授与番号
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甲第3931号
- 学位授与年月日
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1996-03-25
注記・抄録
博士論文
目次
- Abstract / p1 (0003.jp2)
- Contents / (0006.jp2)
- I.Introduction / p1 (0008.jp2)
- II.Volcanic activity of Usu volcano / p6 (0013.jp2)
- II-1.Geological and geomophological setting / p6 (0013.jp2)
- II-2.Historic eruptions / p7 (0014.jp2)
- II-3.Previous studies on the 1977-1978 eruption / p8 (0015.jp2)
- III.Lithology / p15 (0022.jp2)
- III-1.Outcrops near the craters / p15 (0022.jp2)
- III-2.Classification of the deposits / p16 (0023.jp2)
- III-3.Grain size distribution / p19 (0026.jp2)
- IV.Stratigraphy / p25 (0032.jp2)
- IV-1.Stratigraphic correlation of the beds / p25 (0032.jp2)
- IV-2.Subdivision of the members / p26 (0033.jp2)
- V.Chronology of the deposits / p28 (0035.jp2)
- V-1.Eruption duration and source crater of member1 / p28 (0035.jp2)
- V-2.Eruption dates and source craters of member4 / p29 (0036.jp2)
- V-3.Deposits ejected from Craters A-I / p30 (0037.jp2)
- V-4.Eruption dates of the major beds of the Ginnuma Eruptions / p30 (0037.jp2)
- V-5.Eruption duration of member2and3 / p32 (0039.jp2)
- VI.Volume estimations / p34 (0041.jp2)
- VI-1.Distribution of the Stage II deposits in the summit crater / p34 (0041.jp2)
- VI-2.Total volume of the deposits in Stage II / p35 (0042.jp2)
- VI-3.Volume of the deposits ejected by major eruptions in Stage II / p36 (0043.jp2)
- VII.Sequential changes in lithostratigraphy / p38 (0045.jp2)
- VII-1.Sedimentological characteristics of each member / p38 (0045.jp2)
- VII-2.Sequential change in fragment composition / p39 (0046.jp2)
- VIII.Sequential change during each major eruption / p41 (0048.jp2)
- VIII-1.Variation in lithofacies / p41 (0048.jp2)
- VIII-2.Eruption tremors / p42 (0049.jp2)
- IX.Discussion / p45 (0052.jp2)
- IX-1.Correlation between lithofacies and eruption records / p45 (0052.jp2)
- IX-2.Problems of volume estimations / p47 (0054.jp2)
- IX-3.Opening and closing of the vents / p48 (0055.jp2)
- IX-4.Reconstruction of each major eruption / p49 (0056.jp2)
- IX-5.Correlation between lithofacies and eruption tremors / p50 (0057.jp2)
- X.Summary and conclusions / p53 (0060.jp2)
- Acknowledgements / p57 (0064.jp2)
- Appendix / p58 (0065.jp2)
- References / p63 (0070.jp2)
- Figures and Tables / (0077.jp2)
- Photo.Plates / (0127.jp2)
- 有珠山1977-1978年噴火による火砕物の火口付近での層序と岩相 / p249 (0136.jp2)
- 有珠山頂部火口原内の1977―1978年堆積物 / (0143.jp2)
- Tephra-stratigraphical Study of the 1988-1989 Eruptions of Tokachi-dake Volcano,Central Hokkaido. / p131 (0151.jp2)
- EROSION OF THE 1988-1989 SMALL SCALE PYROCLASTIC FLOW AND SURGE DEPOSITS,TOKACHI-DAKE VOLCANO,JAPAN / (0160.jp2)