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Noble gas and chronological study of Asuka eucrites: A-880761 and A-881388 are paired, but A-880702 is not
https://doi.org/10.15094/00006074
https://doi.org/10.15094/00006074238c0397-8b8a-48f0-b444-ac2683864e05
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||||
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公開日 | 2005-03-01 | |||||||||
タイトル | ||||||||||
タイトル | Noble gas and chronological study of Asuka eucrites: A-880761 and A-881388 are paired, but A-880702 is not | |||||||||
言語 | ||||||||||
言語 | eng | |||||||||
キーワード | ||||||||||
言語 | en | |||||||||
主題Scheme | Other | |||||||||
主題 | eucrite, noble gases, pairing, cosmic-ray exposure ages, 244Pu-Xe ages | |||||||||
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 | 10.15094/00006074 | |||||||||
ID登録タイプ | JaLC | |||||||||
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内容記述タイプ | Other | |||||||||
内容記述 | P(論文) | |||||||||
論文名よみ | ||||||||||
その他のタイトル | Noble gas and chronological study of Asuka eucrites: A-880761 and A-881388 are paired, but A-880702 is not | |||||||||
著者名(英) |
Park,Jisun
× Park,Jisun
× Nagao,Keisuke
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著者所属(英) | ||||||||||
en | ||||||||||
Laboratory for Earthquake Chemistry, Graduate School of Science, University of Tokyo/Laboratory for Earthquake Chemistry, Graduate School of Science, University of Tokyo | ||||||||||
抄録(英) | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | Noble gas isotopic and elemental compositions of three Antarctic eucrites Asuka-880702, Asuka-880761 and Asuka-881388 have been measured by two steps of heating temperatures (400 and 1750°C ). Cosmic-ray exposure ages calculated from cosmogenic ^(21)Ne were 20.5, 32.3 and 29.7m.y. for A-880702, A-880761 and A-881388, respectively. Combining the exposure ages with ^(81)Kr-Kr apparent exposure ages, terrestrial ages of 0.20, 0.22 and 0.23m.y. were derived for A-880702, A-880761 and A-881388, respectively. ^(244)Pu-Xe ages based on fissiogenic Xe isotopes showed that the Asuka eucrites began Xe retention at around the crystallization age of Angra dos Reis. Among the Asuka eucrites, A-880702 is about 20m.y. older than the others. From the noble gas and age data described above, we conclude that A-880761 and A-881388 are paired, but A-880702 is not. | |||||||||
雑誌書誌ID | ||||||||||
収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AA11182426 | |||||||||
書誌情報 |
Antarctic meteorite research 巻 18, p. 213-224, 発行日 2005-03 |
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出版者 | ||||||||||
出版者 | National Institute of Polar Research |