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Mineralogical Examination of the Allan Hills No.5 Meteorite
https://nipr.repo.nii.ac.jp/records/959
https://nipr.repo.nii.ac.jp/records/959ab4016ff-b8bf-4d05-a84d-f0f4ceb6f189
名前 / ファイル | ライセンス | アクション |
---|---|---|
KJ00000011505 (1.4 MB)
|
Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1979-03-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Mineralogical Examination of the Allan Hills No.5 Meteorite | |||||
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) |
Miyamoto, Masamichi
× Miyamoto, Masamichi× Takeda, Hiroshi× Yanai, Keizo× Haramura, Hiroshi |
|||||
著者所属(英) | ||||||
en | ||||||
Department of Earth Sciences, Kobe University | ||||||
著者所属(英) | ||||||
en | ||||||
Mineralogical Institute, Faculty of Science, University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Polar Research | ||||||
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 | Electron microprobe studies have been made of pyroxenes from the Allan Hills No. 5 meteorite. This meteorite shows the brecciated texture and was identified as 'eucritic polymict breccia'. Representative pyroxenes in this meteorite can be classified into four groups : (A) Pyroxenes which have a chemically uniform core with a Fe-rich rim. (B) Pyroxenes which show both the Mg-Fe chemical zoning and the exsolution texture. (C) Pyroxene which consists of a portion which has a uniform core with a Fe-rich rim like Type (A) and another portion which shows the exsolution texture and the Mg-Fe chemical zoning like Type (B) within a single grain. (D) Juvinas-like pyroxenes which show the fine exsolution texture with the uniform chemical composition. By the discovery of these pyroxenes in this meteorite, it was proved that the pyroxenes contained in eucritic polymict breccias have a close genetic relationship. Based on the mineralogical examination of these pyroxenes and the surface brecciation process of our proposed layered crust model for an achondrite parent body, we suggested that the eucritic polymict breccia is a good candidate for its surface material. | |||||
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 12, p. 59-71, 発行日 1979-03 |