WEKO3
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Non-destructive measurements of cosmogenic 26Al, natural 40K and fallout 137Cs in Antarctic meteorites
https://nipr.repo.nii.ac.jp/records/1389
https://nipr.repo.nii.ac.jp/records/138967cbef89-eca5-4f38-a16f-ec7850345bf8
名前 / ファイル | ライセンス | アクション |
---|---|---|
KJ00000012023 (1.5 MB)
|
Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1982-12-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Non-destructive measurements of cosmogenic 26Al, natural 40K and fallout 137Cs in Antarctic meteorites | |||||
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) |
Komura, Kazuhisa
× Komura, Kazuhisa× Tsukamoto, Masaki× Sakanoue, Masanobu |
|||||
著者所属(英) | ||||||
en | ||||||
Low Level Radioactivity Lavoratory, Kanazawa University | ||||||
著者所属(英) | ||||||
en | ||||||
Low Level Radioactivity Lavoratory, Kanazawa University | ||||||
著者所属(英) | ||||||
en | ||||||
Low Level Radioactivity Lavoratory, Kanazawa University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Non-destructive γ-ray measurements have been made to determine cosmogenic ^<26>(Al), natural ^<40>K and fallout ^<137>(Cs) activities in 15 Antarctic meteorites (14 from Yamato Mountains and 1 from Allan Hills). The ^<26>(Al) activities range from 72 to 29 dpm/kg. If we assume that the saturation activity of ^<26>(Al) in chondrites is 60,about 1/3 of the measured meteorites show the contents close to this value; however, the rest show lower values. A simple graphical method was applied to estimate the exposure and terrestrial ages based on ^<26>(Al) and ^<53>(Mn) data, and these ages are compared with exposure ages obtained by ^<21>(Ne) measurements. The results are generally consistent with the ^<21>(Ne) data. It must be noted that the Antarctic meteorites are highly contaminated with fallout ^<137>(Cs) derived from nuclear test explosions. | |||||
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 25, p. 178-187, 発行日 1982-12 |