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Petrology and mineralogy of the Yamato-82162 chondrite (CI)
https://doi.org/10.15094/00004545
https://doi.org/10.15094/00004545d68d50ce-f3b2-418f-97a9-b269d6459ce5
名前 / ファイル | ライセンス | アクション |
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KJ00000036351 (4.9 MB)
|
Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1991-03-01 | |||||
タイトル | ||||||
タイトル | Petrology and mineralogy of the Yamato-82162 chondrite (CI) | |||||
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 | 10.15094/00004545 | |||||
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) |
Ikeda, Yukio
× Ikeda, Yukio |
|||||
著者所属(英) | ||||||
en | ||||||
Department of Earth Sciences, Faculty of Science, Ibaraki University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Yamato-82162 (Y-82162) is a regolith breccia including many kinds of clasts. The clasts are classified into 6 clast-types on the basis of the predominant phase and the textures. They are phyllosilicate, carbonate, unusual, magnetite, composite, and matrix-like clast-types. The phyllosilicate clasts are subdivided into two subtypes, sodian talc-rich and chlorite-rich. The sodian talc-rich clasts consist mainly of sodian talc and minor chlorite (or serpentine), and they are coarsegrained and homogeneous in chemical composition. They seem to have formed in hot and deep interior of the parent body. Chlorite-rich clasts, magnetite clasts, and matrix-like clasts consist mainly of chlorite and minor sodian talc, and they show unique microtextures; amygdule, network-like, and microspherulitic. The three clast-types seem to have formed near the surface of the parent body. Matrix-like and composite clasts are sometimes cut across by phyllosilicate veins, which may have been formed by a fluid coming from the interior of the parent body where sodian talcrich clasts were produced. The unusual clasts include FeO-bearing periclase which sometimes overgrows on magnetite grains and is rimmed by an unknown Fe-Ca-S-O phase, suggesting that the unusual clasts were produced from carbonate-rich precursors by heating events. In addition to these clasts, Y-82162 includes anhydrous chondritic fragments, which were projectiles collided on the parent body to have produced the regolith breccia of Y-82162. | |||||
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 4, p. 187-225, 発行日 1991-03 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |