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Fe-bearing phases in Antarctic carbonaceous chondrites Yamato-82162 and Yamato-86720: A Mossbauer study
https://doi.org/10.15094/00004654
https://doi.org/10.15094/000046542d04f737-82f9-4471-a763-6f5d5882dfc2
名前 / ファイル | ライセンス | アクション |
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KJ00000036460 (910.1 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1994-03-01 | |||||
タイトル | ||||||
タイトル | Fe-bearing phases in Antarctic carbonaceous chondrites Yamato-82162 and Yamato-86720: A Mossbauer study | |||||
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 | 10.15094/00004654 | |||||
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) |
Scorzelli,R. B.
× Scorzelli,R. B.× Galvao da Silva,E.× Azevedo,I. Souza× Tomeoka,Kazushige |
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著者所属(英) | ||||||
en | ||||||
Centro Brasileiro de Pesquisas Fisicas/Departamento de Fisica, Universidade Federal de Minas Gerais/Centro Brasileiro de Pesquisas Fisicas/Department of Earth Sciences, Faculty of Science, Kobe University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | We report the results of variable temperature Mossbauer spectroscopy measurements on samples of Yamato-82162 and Yamato-86720 carbonaceous chondrites. Transmission Mossbauer spectra were taken through the temperature range from 4.2K to 300K. The Mossbauer spectra at room temperature clearly indicate the presence of magnetic splits and quadrupole doublets in both meteorites, which can be attributed to troilite and olivine, respectively. The measurements also indicate the presence of a superparamagnetic component, probably ferryhidrite, in Y-86720 but not in Y-82162. These results are mostly consistent with those obtained by mineralogical studies. However, our Mossbauer measurements indicate the presence of a previously unknown magnetic component having a field of 250kOe in both meteorites; the mineral is unidentified so far. Our study supports the view that these meteorites were affected by thermal metamorphism, and that Y-82162 was less thermally metamorphosed than Y-86720. | |||||
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 7, p. 275-283, 発行日 1994-03 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |