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40Ar-39Ar analyses of an Antarctic meteorite Yamato-791197 of probable lunar origin
https://nipr.repo.nii.ac.jp/records/1957
https://nipr.repo.nii.ac.jp/records/1957792c4c6e-2553-4b76-913d-2a85406686b1
名前 / ファイル | ライセンス | アクション |
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KJ00000012511.pdf (996.3 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1986-07-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | 40Ar-39Ar analyses of an Antarctic meteorite Yamato-791197 of probable lunar origin | |||||
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) |
Kaneoka,Ichiro
× Kaneoka,Ichiro× Takaoka,Nobuo |
|||||
著者所属(英) | ||||||
en | ||||||
Geophysical Institute, Faculty of Science, University of Tokyo/Department of Earth Sciences, Faculty of Science, Yamagata University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | ^<40>Ar-^<39>Ar analyses have been applied to an Antarctic meteorite Yamato-791197 (Y-791197), an anorthositic regolith breccia of probable lunar origin (YANAI and KOJIMA, Mem. Natl Inst. Polar Res., Spec. Issue, 35,18,1984). The clast sample (Y-791197,96) shows a plateau ^<40>Ar-^<39>Ar age of 4065±93 Ma at higher temperatures, which corresponds to typical age groups obtained for lunar rocks of highland origin. The matrix sample (Y-791197,97) contains a large amount of trapped Ar (^<40>Ar : ∿9×(10)^<-4>(cm)^3STP/g) with the ^<40>Ar/^<36>Ar ratio of about 2.5 at higher temperatures, which implies that the trapped Ar is mostly of solar wind origin. This makes it difficult to estimate a reasonable ^<40>Ar-^<39>Ar age for this portion. The present result supports a presumption that Y-791197 originated from the moon's surface as a lunar highland breccia. | |||||
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 41, p. 116-123, 発行日 1986-07 |