Temporal and spatial variation in chemical compositions of rocks from Nasu volcanic group, northeast Japan 東北日本、那須火山群の岩石化学組成の時空変化
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Bibliographic Information
- Title
-
Temporal and spatial variation in chemical compositions of rocks from Nasu volcanic group, northeast Japan
- Other Title
-
東北日本、那須火山群の岩石化学組成の時空変化
- Author
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伴, 雅雄
- Author(Another name)
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バン, マサオ
- University
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東北大学
- Types of degree
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博士 (理学)
- Grant ID
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乙第5906号
- Degree year
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1992-11-25
Note and Description
博士論文
Table of Contents
- Abstract / (0003.jp2)
- Contents / p1 (0005.jp2)
- Chapter1 Introduction / p1 (0011.jp2)
- 1-1 Occurrence of representative volcanic rock series at distinct tectonic environments / p1 (0011.jp2)
- 1-2 Possible candidates of source materials for volcanic arc magmas / p2 (0012.jp2)
- 1-3 Occurrence of representative rock series among Quaternary volcanic rocks in northeast Japan arc / p4 (0014.jp2)
- 1-4 Petrogenetic relationship between coexisting calc-alkaline and tholeiitic rock series / p5 (0015.jp2)
- 1-5 Spatial variation in trace element concentrations and Sr isotopic ratios in volcanic rocks from Quaternary volcanic rocks of northeast Japan / p6 (0016.jp2)
- 1-6 Genetic relationship of lateral variations in chemical compositions of Quaternary basaltic rocks in northeast Japan / p7 (0017.jp2)
- 1-7 Contrasting problems for the genesis of various rock series in Quaternary volcanic rocks in northeast Japan arc / p8 (0018.jp2)
- 1-8 Temporal and spatial variation in chemical compositions of rocks from Nasu volcanic group, northeast Japan / p9 (0019.jp2)
- Chapter2 Eruptive history of Nasu volcanic group / p10 (0020.jp2)
- 2-1 Location of Nasu volcanic group and outline of tectonic settings / p10 (0020.jp2)
- 2-2 Type of stratovolcano / p13 (0023.jp2)
- 2-3 Outline of volcanic sequence of Nasu volcanic group / p19 (0029.jp2)
- 2-4 Details of volcanic sequence of Nasu volcanic group / p22 (0032.jp2)
- 2-5 Summary of eruptive history / p50 (0060.jp2)
- Chapter3 K-Ar ages of lavas from Nasu volcanic group / p52 (0062.jp2)
- 3-1 Selection of samples / p52 (0062.jp2)
- 3-2 Discription of dating samples / p52 (0062.jp2)
- 3-3 Analytical procedures / p60 (0070.jp2)
- 3-4 Results of K-Ar dating / p62 (0072.jp2)
- 3-5 Corelation between the results and geologic data / p64 (0074.jp2)
- 3-6 Eruption rate of volcanic activity of Nasu volcanic group / p65 (0075.jp2)
- 3-7 Comparison between dating data and tephra data / p69 (0079.jp2)
- 3-8 Summary of K-Ar dating of rocks from Nasu volcanic group / p69 (0079.jp2)
- Chapter4 Petrography of the rocks from Nasu volcanic group / p71 (0081.jp2)
- 4-1 General features and variations of rocks from Nasu volcanic group / p71 (0081.jp2)
- 4-2 The details of petrographical character of rocks from Nasu volcanic group / p73 (0083.jp2)
- Chapter5 Whole rock chemistry of rocks from Nasu volcanic group / p99 (0109.jp2)
- 5-1 Analytical method / p99 (0109.jp2)
- 5-2 The major element compositions of the rocks of Nasu volcanic group / p106 (0116.jp2)
- 5-3 Trace element:Compatible elements:Ni, Cr, and V / p114 (0124.jp2)
- 5-4 Trace elements:High field srtength elements:Zr, Nb, and Y / p120 (0130.jp2)
- 5-5 Trace elements:The K-Group:Rb, Ba, and Sr / p120 (0130.jp2)
- 5-6 Trace elements:The Th Group:Th and Pb / p127 (0137.jp2)
- 5-7 Trace elements:The Chalcophile Group:Cu and Zn / p128 (0138.jp2)
- 5-8 Trace elements:Ga / p128 (0138.jp2)
- 5-8 Strontium isotopic ratio / p128 (0138.jp2)
- Chapter6 Mechanism of the variations brought for the variations of rock compositions of calc-alkaline and tholeiite rock series in Minamigassan volcano, Nasu volcanic group / p132 (0142.jp2)
- 6-1 Introduction / p132 (0142.jp2)
- 6-2 Minamigassan volcano / p135 (0145.jp2)
- 6-3 General geology of Minamigassan volcano / p135 (0145.jp2)
- 6-4 Bulk rock compositions and Phenocrysts assembleges of the rocks from Minamigassan volcano / p136 (0146.jp2)
- 6-5 Mineral compositions of rocks from Minamigassan volcano / p136 (0146.jp2)
- 6-6 Mechanism caused the whole rock variation within each units / p146 (0156.jp2)
- 6-7 The genetic relationships between each units. / p155 (0165.jp2)
- 6-8 Petrological model for the Minamigassan volcano / p162 (0172.jp2)
- Chapter7 The formation of the present volcanic zonation of the northeast Japan arc / p164 (0174.jp2)
- 7-1 Introduction / p164 (0174.jp2)
- 7-2 K-Ar dating samples of the rocks from Mutsu-Hiuchi-dake, Osoreyama, Nanashigure, and Aoso volcanoes / p165 (0175.jp2)
- 7-3 Analytical method of K-Ar dating / p167 (0177.jp2)
- 7-4 Geological considerations of the results of K-Ar datings / p167 (0177.jp2)
- 7-5 The temporal and spatial variations of the K₂O contents of rocks occurred volcanic front after 4 Ma / p171 (0181.jp2)
- 7-6 Conclusions of he formation of the present volcanic zonation of the northeast Japan arc / p180 (0190.jp2)
- Chapter8 Estimation of source rocks compositions of various rock series in Nasu volcanic group, northeast Japan / p181 (0191.jp2)
- 8-1 Temporal and spatial variation in chemical compositions of rocks from Nasu volcanic group, northeast Japan / p181 (0191.jp2)
- 8-2 Mechanism caused the variations of rock compositions of calc-alkaline and tholeiite rock series in Nasu volcanic group / p187 (0197.jp2)
- 8-3 Estimation of source rocks compositions of various rock series in Nasu volcanic group, northeast Japan / p187 (0197.jp2)
- 8-4 Temporal and spatial variation in chemical compositions of rocks from Nasu volcanic group, northeast Japan / p200 (0210.jp2)
- Chapter9 Conclusions / p202 (0212.jp2)
- Acknowledgements / p204 (0214.jp2)
- References / p205 (0215.jp2)