Mode of emplacement and petrogenesis of volcanic rocks of the Shirahama group, Izu Peninsula, Japan 伊豆半島白浜層群の火山岩類の定置様式と岩石学的成因
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著者
書誌事項
- タイトル
-
Mode of emplacement and petrogenesis of volcanic rocks of the Shirahama group, Izu Peninsula, Japan
- タイトル別名
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伊豆半島白浜層群の火山岩類の定置様式と岩石学的成因
- 著者名
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田村, 芳彦
- 著者別名
-
タムラ, ヨシヒコ
- 学位授与大学
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東京大学
- 取得学位
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理学博士
- 学位授与番号
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甲第8939号
- 学位授与年月日
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1991-03-29
注記・抄録
博士論文
目次
- CONTENTS / (0008.jp2)
- Abstract / p1 (0003.jp2)
- Introduction / p1 (0011.jp2)
- Acknowledgements / p6 (0016.jp2)
- Part I Mode of emplacement of volcanic rocks of the Shirahama Group / p7 (0017.jp2)
- Introduction / p8 (0018.jp2)
- Geological Setting / p10 (0020.jp2)
- Procedure / p19 (0029.jp2)
- Results / p21 (0031.jp2)
- Discussion / p30 (0040.jp2)
- Thermal history of blocks in submarine pyroclastic deposit / p32 (0042.jp2)
- Conclusion / p38 (0048.jp2)
- Part II Petrogenesis of volcanic rocks of the Shirahama Group / p39 (0049.jp2)
- CapterO / p40 (0050.jp2)
- Mixed and unmixed:A tacit agreement? / p40 (0050.jp2)
- Analytical method / p41 (0051.jp2)
- Chapter1 Calcalkaline versus tholeiitic rocks:Petrogenesis of bimodal volcanism in the Shirahama Group / p42 (0052.jp2)
- 1.1 Introduction / p42 (0052.jp2)
- 1.2 Tholeiites versus calcalkaline rocks / p44 (0054.jp2)
- 1.3 Spatial and temporal coexistence of tholeiites(TH)and calcalkaline rocks / p46 (0056.jp2)
- 1.4 Relative proportions of volcanic rock types in the Shirahama Group / p48 (0058.jp2)
- 1.5 Mineral assemblage in tholeiites and calcalkaline rocks / p50 (0060.jp2)
- 1.6 The dualism shown in the chemical composition of minerals / p51 (0061.jp2)
- 1.7 Magmatic temperatures of tholeiites and calcalkaline rocks / p62 (0072.jp2)
- 1.8 Conclusion.Dualism in the Shirahama group / p65 (0075.jp2)
- Chapter2.Mixing between calcalkaline and tholeiitic magmas / p68 (0078.jp2)
- 2.1 Introduction / p68 (0078.jp2)
- 2.2 Basic inclusions in dacite:Mingled hybrid magma in the Shirahama Group / p70 (0080.jp2)
- 2.3 Andesite which has intermediate composition between TH and CA:Mixed hybrid magma in the Shirahama Group / p77 (0087.jp2)
- 2.4 Conclusion / p87 (0097.jp2)
- Chapter3.The role of crystal fractionation in the petrogenesis of the Shirahama Group / p89 (0099.jp2)
- 3.1 Introduction / p89 (0099.jp2)
- 3.2 Method / p90 (0100.jp2)
- 3.3 Crystal fractionation model in the Shirahama Group / p94 (0104.jp2)
- 3.4 Conclusion / p123 (0133.jp2)
- Chapter4.Chemistry of boninites,CA andesites and tholeiites / p126 (0136.jp2)
- 4.1 Introduction / p126 (0136.jp2)
- 4.2 Geochemical characteristics of tholeiites versus calcalkaline rocks in the Shirahama Group / p128 (0138.jp2)
- 4.3 Boninites,calcalkaline rocks and tholeiites / p138 (0148.jp2)
- 4.4 Conclusion / p145 (0155.jp2)
- Chapter5.Discussion;Genesis of andesite by bimodal magmatism derived from mantle diapir / p147 (0157.jp2)
- 5.1 Introduction / p147 (0157.jp2)
- 5.2 Experiments on boninites(high-Mg andesites)as a primary magma / p148 (0158.jp2)
- 5.3 General constraints on calcalkaline rocks / p149 (0159.jp2)
- 5.4 Concluding remarks / p152 (0162.jp2)
- References / p154 (0164.jp2)
- Appendix1 Whole-rock chemical composition of volcanic rocks in the Shirahama Group / p163 (0173.jp2)
- Appendix2 Modal compositions(volume per cent)of representative samples in the Shirahama Group / p178 (0188.jp2)