WEKO3
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Trace element composition and distribution of Yamato-691, an unequilibrated enstatite chondrite
https://doi.org/10.15094/00004448
https://doi.org/10.15094/000044480bc3f708-6972-44fa-8861-7821ffc3cabf
名前 / ファイル | ライセンス | アクション |
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KJ00000036254 (1.6 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1988-03-01 | |||||
タイトル | ||||||
タイトル | Trace element composition and distribution of Yamato-691, an unequilibrated enstatite chondrite | |||||
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 | 10.15094/00004448 | |||||
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) |
Ebihara, Mitsuru
× Ebihara, Mitsuru |
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著者所属(英) | ||||||
en | ||||||
Department of Chemistry, Faculty of General Studies, Gunma University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Twenty one trace elements (Re, Ir, Pd, Au, Ag, Se, Te, Zn, In, Cd, Tl, La, Ce, Nd, Sm, Eu, Gd, Tb, Tm, Yb and Lu) were determined by radio-chemical neutron activation analysis for the bulk sample and acid (nitric acid and aqua regia)-soluble and residual phases of the Yamato-691 (EH3) meteorite. No fractionation was confirmed in siderophile elements among Y-691,EH4-5s and EL6s. Among volatile chalcophiles, Zn and In in Y-691 are in the ranges of their abundance variations in EH4-5s, whereas Cd and Tl were observed to be more enriched in Y-691 than in EH4-5s. About 15% of light rare earth elements (REEs) and 30% of heavy REEs were confirmed to be distributed in acid-residual phases (pyroxene-dominant silicates). A small but difinite negative anomaly of Yb was found in acid-residues, but neither Eu nor Ce anomalies were confirmed. Distributions of the REEs with a negative Yb anomaly in acid-residues must be a strong constraint on formation hypotheses for enstatite chondrites. | |||||
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 1, p. 102-112, 発行日 1988-03 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |