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A Brachina-like inclusion in the Yamato-75097 L6 chondrite: A preliminary examination
https://nipr.repo.nii.ac.jp/records/1549
https://nipr.repo.nii.ac.jp/records/15494fd9acad-2e12-4166-8d95-01d3a055e5e8
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00000012182.pdf (1.1 MB)
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| Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 1983-12-01 | |||||
| タイトル | ||||||
| タイトル | A Brachina-like inclusion in the Yamato-75097 L6 chondrite: A preliminary examination | |||||
| 言語 | en | |||||
| 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) |
Yanai, Keizo
× Yanai, Keizo× Matsumoto, Yukio× Kojima, Hideyasu |
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| 著者所属(英) | ||||||
| 言語 | en | |||||
| 値 | National Institute of Polar Research | |||||
| 著者所属(英) | ||||||
| 言語 | en | |||||
| 値 | Department of Mineralogical Sciences and Geology, Faculty of Science,Yamaguchi University | |||||
| 著者所属(英) | ||||||
| 言語 | en | |||||
| 値 | National Institute of Polar Research | |||||
| 抄録(英) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | A Brachina-like inclusion is identified in the Yamato-75097 L6 chondrite. The inclusion has a shiny black fusion crust and is relatively large (2.5×2.5×0.8cm) and about 15g in weight. The fusion crust is distinguished clearly from the dull black fusion crust of the host. Microscopically, the inclusion has a fine-grained granular texture and consists mainly of olivine with minor merrillite and plagioclase, and a little chromite. Plagioclase is isotropic and presumably maskelynite. Pyroxene, nickel-iron and troilite were not identified. The texture of the inclusion appears to be similar to that of the Brachina meteorite. Compositions of the constituent minerals are olivine average Fo_<76> (range Fo_<75.0-76.5>, %M. D.=1.1), maskelynite An_<15>Ab_<75>Or_<10> and merrillite (MgO_<=3.62> FeO_<=0.48> CaO_<=44.9> Na_2O_<=2.79> P_2O_<5=47.4>). Olivine is compositionally homogeneous and relatively Mg-rich compared with that of Brachina. The olivine composition is very similar to that of the host. | |||||
| 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 30, p. 29-35, 発行日 1983-12 |
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