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40Ar-39Ar analyses of Juvinas fragments
https://doi.org/10.15094/00004683
https://doi.org/10.15094/00004683af6529fc-a8c8-4be8-970f-eac958dc4e54
名前 / ファイル | ライセンス | アクション |
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KJ00000036489 (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 | 1995-03-01 | |||||
タイトル | ||||||
タイトル | 40Ar-39Ar analyses of Juvinas fragments | |||||
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 | 10.15094/00004683 | |||||
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) |
Kaneoka, Ichiro
× Kaneoka, Ichiro× Nagao, Keisuke× Yamaguchi, Akira× Takeda, Hiroshi |
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著者所属(英) | ||||||
en | ||||||
Earthquake Research Institute,University of Tokyo/Institute for Study of the Earth's Interior,Okayama University/Mineralogical Institute, Graduate School of Sciences,University of Tokyo | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Three fragments of the Juvinas (eucrite) taken from the main mass with a size of about 30cm were analyzed by the ^<40>Ar-^<39>Ar method in order to examine differences of secondary thermal effects. The brecciated matrix shows a scattered pattern in the ^<40>Ar-^<39>Ar age spectrum, indicating excess ^<40>Ar in the higher temperature fractions. Two other fragments show no definite plateau ages but indicate similar age patterns. A probable disturbance event (s) around 4-4.1 Ga is indicated in the 975-1050℃ fractions. Thus, Juvinas shows evidence of secondary thermal events, probably due to impacts. | |||||
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 8, p. 287-296, 発行日 1995-03 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |