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The correlation of chondrule texture and magnesium isotope abundance in Allende meteorite
https://doi.org/10.15094/00004488
https://doi.org/10.15094/0000448879ed452f-7187-4ccf-b3a2-b4ed2106d3bb
名前 / ファイル | ライセンス | アクション |
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KJ00000036294 (1.5 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1989-10-01 | |||||
タイトル | ||||||
タイトル | The correlation of chondrule texture and magnesium isotope abundance in Allende meteorite | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
ID登録 | ||||||
ID登録 | 10.15094/00004488 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Uyeda, Chiaki
× Uyeda, Chiaki× Suzuki, Mari× Okano, Jun |
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著者所属(英) | ||||||
en | ||||||
College of General Education, Osaka University | ||||||
著者所属(英) | ||||||
en | ||||||
College of General Education, Osaka University | ||||||
著者所属(英) | ||||||
en | ||||||
College of General Education, Osaka University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The Mg isotope abundance of the individual chondrules in the Allende meteorite was measured by ion microprobe mass analysis. The amounts of ^<24>Mg excess with respect to the terrestrial fractionation line were obtained for each chondrule. Barred olivine and glassy chondrules tend to have relatively large ^<24>Mg excess, whereas porphyritic and radial pyroxene chondrules have relatively small ^<24>Mg excess. The following three factors were taken into consideration in connection with the formation process of these chondrules in the Allende meteorite; (1) the temperature conditions at the formation of the chondrules, (2) the relative abundance of each chondrule type, (3) the amount of ^<24>Mg excess in each chondrule type. It is shown that chondrules formed at high temperature or by rapid cooling have relatively large ^<24>Mg excess and their relative abundance is small, whereas chondrules formed at low temperature or by slow cooling tend to have small ^<24>Mg excess and their relative abundance is large. A model of chondrule formation process in the early solar nebula is proposed to explain the relations between factors (1)-(3). | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10784627 | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Antarctic Meteorites 巻 2, p. 268-278, 発行日 1989-10 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |