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三宅島2000年噴火 : 噴出物中のガラス包有物組成の特徴とSO2大量放出の要因
https://doi.org/10.15083/0000032594
https://doi.org/10.15083/000003259478ab17ec-34fc-4342-bb6e-5b6f0c0dbd7c
名前 / ファイル | ライセンス | アクション |
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ji0771003.pdf (1.3 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2008-05-30 | |||||
タイトル | ||||||
タイトル | 三宅島2000年噴火 : 噴出物中のガラス包有物組成の特徴とSO2大量放出の要因 | |||||
言語 | ja | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | Miyakejima volcano | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | melt inclusions | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | sulfur | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | source composition | |||||
主題Scheme | Other | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15083/0000032594 | |||||
ID登録タイプ | JaLC | |||||
その他のタイトル | ||||||
その他のタイトル | Composition of Melt Inclusions from 2000 Miyakejima Eruption and Implications for Vigorous SO2 Emission | |||||
著者 |
安田, 敦
× 安田, 敦× 中田, 節也× 藤井, 敏嗣 |
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著者別名 | ||||||
識別子 | 126085 | |||||
識別子Scheme | WEKO | |||||
姓名 | Yasuda, Atsushi | |||||
著者別名 | ||||||
識別子 | 126086 | |||||
識別子Scheme | WEKO | |||||
姓名 | Nakada, Setsuya | |||||
著者別名 | ||||||
識別子 | 126087 | |||||
識別子Scheme | WEKO | |||||
姓名 | Fujii, Toshitsugu | |||||
著者所属 | ||||||
著者所属 | 東京大学地震研究所 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Major-element, Cl, S analyses have been performed with electron microprobe on melt inclusions trapped in phenocryst plagioclase from Miyakejima volcano. Samples were collected from three different volcanic events to characterize their source magma; (1)submarine eruption on June 27, 2000, (2)summit eruption on August 18, 2000, (3)lateral fissure eruption in 1983. Chemical variation observed in melt inclusions from the summit eruption on August 18 can be explained by postentrapment crystallization of host-plagioclase, and no evidence is recognized on the occurrence of magma-mixing. On the other hand, element concentrations of melt inclusions derived from the submarine eruption and the 1983 eruption suggest a common source having a supply signature of less-evolved magma into a differentiated magma. Among the three volcanic events, no significant difference in S concentration was observed. Sulfur concentrations in the melt inclusions vary more than 40%, possibly reflecting pre-entrapment degassing during the ascent of magma from a deeper magma chamber to a shallower one. These observations imply that both insufficient absorption of volcanic gas into groundwater and injection of voluminous volatile-saturated magma into the shallow magma chamber cause the current significant SO2 emission. | |||||
書誌情報 |
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo 巻 77, 号 1, p. 43-54, 発行日 2002-07-30 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00408972 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00162258 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
日本十進分類法 | ||||||
主題 | 453 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | 東京大学地震研究所 | |||||
出版者別名 | ||||||
Earthquake Research Institute, University of Tokyo |