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Petrological Studies on Yamato-74354, -74190, -74362, -74646 and -74115 Chondrites
https://nipr.repo.nii.ac.jp/records/1045
https://nipr.repo.nii.ac.jp/records/104563b3d67e-c200-4ec9-83f8-0a822de66fd4
名前 / ファイル | ライセンス | アクション |
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KJ00000011589 (4.8 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||
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公開日 | 1979-12-01 | |||||||
タイトル | ||||||||
言語 | en | |||||||
タイトル | Petrological Studies on Yamato-74354, -74190, -74362, -74646 and -74115 Chondrites | |||||||
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) |
Nagahara, Hiroko
× Nagahara, Hiroko
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著者所属(英) | ||||||||
en | ||||||||
Geological Institute, Faculty of Science, University of Tokyo | ||||||||
抄録(英) | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | Petrological description has been done on five different Yamato-74354 (L6), -74362 (L6), -74190 (L6), -74646 (LL6) and -74115 (H5) chondrites. Detailed microprobe analyses of the constituent minerals and chondrules indicate that these chondrites consist of homogeneous silicate minerals and remarkably heterogeneous Fe-Ni metals. They show various degrees of recrystallization but the equilibrium temperature of olivine, pyroxenes and chromite is about 900℃ and is quite similar among these five chondrites. The degree of recrystallization, therefore, would depend not only on the equilibrium temperature but also largely on the duration of recrystallization. It is also suggested that the bulk chemical composition of chondrules has been hardly affected by thermal metamorphism. | |||||||
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 15, p. 77-109, 発行日 1979-12 |