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Zoning type of a plagioclase in the volcanic rocks from the Myoko and Yakeyama volcanoes, Niigata Prefecture, Japan
http://hdl.handle.net/10513/123
http://hdl.handle.net/10513/12314ff8001-18f4-4684-b58b-d8833ac0115a
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
kiyo20_1-03.pdf (622.5 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2009-05-22 | |||||||||
| タイトル | ||||||||||
| タイトル | Zoning type of a plagioclase in the volcanic rocks from the Myoko and Yakeyama volcanoes, Niigata Prefecture, Japan | |||||||||
| 言語 | en | |||||||||
| タイトル | ||||||||||
| タイトル | Zoning type of a plagioclase in the volcanic rocks from the Myoko and Yakeyama volcanoes, Niigata Prefecture, Japan | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | plagioclase | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | magma mixiing | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Myoko volcanoes | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Yakeyama | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | departmental bulletin paper | |||||||||
| 著者 |
Oba, Takanobu
× Oba, Takanobu
× Hayatsu, Kenji
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| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | The volcanic rocks of the Myoko and Yakeyama in Quaternary are distributed in the Nishikubiki region, Niigata Prefecture. In the Myoko volcano, pyroxene and hornblende andesites are common, and basalt is accompanied in subordinate amount. The volcanic rocks from the Yakeyama are pyroxene - hornblende andesite and hornblende dacite. The zoning types of plagioclase from these volcanic rocks are diverse. It is possible to be classified six types such as fresh, small dusty and big dusty zones at marginal or core parts, sieve-like and fingerprint-like textures. The major zoning type of plagioclase in andesite and dacite from the Yakeyama and Myoko volcanoes at the late stages are fresh type with normal zoning. The chemical variations of major and trace elements of the fresh plagioclase bearing volcanic rocks are plotted far distance from the differentiation trend. The plots of andesites with the various zoning types of plagioclase from the Myoko volcano are a wide dispersion in FeO/MgO-Si0_2 diagram. | |||||||||
| 書誌情報 |
上越教育大学研究紀要 巻 20, 号 1, p. 19-28, 発行日 2000-09 |
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| 出版者 | ||||||||||
| 出版者 | 上越教育大学 | |||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0915-8162 | |||||||||
| 論文ID（NAID） | ||||||||||
| 関連タイプ | isIdenticalTo | |||||||||
| 識別子タイプ | NAID | |||||||||
| 関連識別子 | AN10284863 | |||||||||
| 著者版フラグ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
