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Cosmogenic 53Mn Survey of Yamato Meteorites
https://nipr.repo.nii.ac.jp/records/1100
https://nipr.repo.nii.ac.jp/records/1100b5336ee0-054f-4633-9648-84b956726f0e
名前 / ファイル | ライセンス | アクション |
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KJ00000011626 (1.1 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1980-12-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Cosmogenic 53Mn Survey of Yamato 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) |
Nishizumi, Kunihiko
× Nishizumi, Kunihiko× Murrell, Michael T.× Arnold, James R.× Imamura, Mineo× Honda, Masatake |
|||||
著者所属(英) | ||||||
en | ||||||
Department of Chemistry, B-017, University of California/Department of Chemistry, B-017, University of California/Department of Chemistry, B-017, University of California/Institute for Nuclear Study, University of Tokyo/Institute for Solid State Physics, University of Tokyo | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | As part of a program to compile statistical information on the cosmic ray exposure history of meteorites, cosmogenic ^<53>(Mn) (t_<1/2>=3.7×(10)^6y) was determined in twenty-one Yamato meteorites. Yamato-74116 and -74193 contain especially low amounts of ^<53>(Mn) suggesting short cosmic ray exposure ages. The ^<53>(Mn) activity level of Yamato-74192 is 578±24 dpm/kg (Fe+1/3 Ni) which is the highest value we have ever measured in a chondrite to date. Although the recovered mass of Yamato-74159 was small, its ^<53>(Mn) content indicates a large preatmospheric mass. Two histograms, which illustrate the frequencies of the ^<53>(Mn) contents of chondrites from Antarctica and those of chondrites from other parts of the world, show similar statistical distributions. This indicates that the terrestrial ages of Antarctic meteorites are generally short (<1 my) in comparison to the ^<53>Mn half-life. | |||||
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 17, p. 202-209, 発行日 1980-12 |