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Rare Gas Studies of Yamato-7301(j), -7304(m) and -7305(k)
https://nipr.repo.nii.ac.jp/records/888
https://nipr.repo.nii.ac.jp/records/888166b92f1-4ea0-49ab-b2f9-c7eb52a11aad
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 | 1978-02-01 | |||||||||
タイトル | ||||||||||
言語 | en | |||||||||
タイトル | Rare Gas Studies of Yamato-7301(j), -7304(m) and -7305(k) | |||||||||
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 | |||||||||
ページ属性 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | P(論文) | |||||||||
著者名(英) |
Takaoka, Nobuo
× Takaoka, Nobuo
× Nagao, Keisuke
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著者所属(英) | ||||||||||
en | ||||||||||
Department of Physics, Faculty of Science, Osaka University | ||||||||||
著者所属(英) | ||||||||||
en | ||||||||||
Department of Physics, Faculty of Science, Osaka University | ||||||||||
抄録(英) | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | Yamato-7301 (H4 chondrite) and Yamato-7304 and -7305 (both L5 chondrites) were investigated for concentrations and isotopic compositions of rare gases. From the data of isotopic analyses of rare gases, cosmic-ray exposure ages on cosmogenic ^3(He), ^<21>(Ne) and ^<38>(Ar) and gas-retention ages on radiogenic ^4(He) and ^<40>(Ar) were calculated as follows : [table] Partial loss of helium was suggested for three samples. There were definitely observed ^<129>Xe-excesses and systematic enrichment in the light isotopes of xenon in all three meteorites. Isotopic anomalies were observed in the heavy isotopes of xenon in Yamato-7304 and the excess pattern resembles the fission yield pattern of ^<244>(Pu). | |||||||||
雑誌書誌ID | ||||||||||
収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AA00733561 | |||||||||
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue 巻 8, p. 198-208, 発行日 1978-02 |