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Petrology and classification of new Antarctic carbonaceous chondrites PCA-91082, TIL-91722 and WIS-91600
https://doi.org/10.15094/00004697
https://doi.org/10.15094/00004697ed0dffd1-b4d1-4b94-9c16-e4e4c13ddaca
名前 / ファイル | ライセンス | アクション |
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KJ00000036503 (1.3 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1996-03-01 | |||||
タイトル | ||||||
タイトル | Petrology and classification of new Antarctic carbonaceous chondrites PCA-91082, TIL-91722 and WIS-91600 | |||||
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 | 10.15094/00004697 | |||||
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) |
Birjukov,Vladislav V.
× Birjukov,Vladislav V.× Ulyanov,Alexander A. |
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著者所属(英) | ||||||
en | ||||||
Division of Mineralogy, Geological Department of M.V. Lomonosov, Moscow State University/Division of Mineralogy, Geological Department of M.V. Lomonosov, Moscow State University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Three Antarctic chondrites : Pecora Escarpment (PCA) 91082,Thiel Mountains (TIL) 91722 and Wisconsin Range (WIS) 91600 were studied by SEMEDS methods and classified as CR2,CV3 and CM2,respectively. PCA91082 and TIL91722 contain rare fine-grained refractory inclusions and amoeboid olivine aggregates without any traces of secondary alteration processes. Chondrule pyroxene is enriched in Cr and Mn compared to pyroxenes from refractory inclusions. Presence of Cr^<2+> and Ti^<3+> with normal Cr^<3+> and Ti^<4+> in chondrule pyroxenes probably indicates reducing conditions during chondrule formation. Several unusual objects, such as a compound P-rich chondrule in PCA91082,and P and Cr enriched glasses in WIS91600,were studied. The metal fraction of PCA91082 shows a positive Nivs. Co trend which can be produced by volatilization process. Bulk composition of inclusions and chondrules follows to condensation trend, but exsolution structures and glasses indicate crystallization from melts. | |||||
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 9, p. 8-19, 発行日 1996-03 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |