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Sr/Ca-Ba/Ca systematics in Antarctic Ca-rich achondrites and their origins
https://nipr.repo.nii.ac.jp/records/1214
https://nipr.repo.nii.ac.jp/records/12140325aeee-3900-4bc4-93f8-1400d0568c5f
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00000011740 (1.3 MB)
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| Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 1981-12-01 | |||||
| タイトル | ||||||
| タイトル | Sr/Ca-Ba/Ca systematics in Antarctic Ca-rich achondrites and their origins | |||||
| 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) |
Onuma, Naoki
× Onuma, Naoki× Hirano, Masatake |
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| 著者所属(英) | ||||||
| 言語 | en | |||||
| 値 | Institute of Chemistry, University of Tsukuba | |||||
| 抄録(英) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The Ca, Sr and Ba contents of six Antarctic polymict eucrites (Y-74450,Y-75011,Y-75015,ALH-765,ALH-78040 and ALH-78132) and a unique Antarctic achondrite (ALH-77005) have been determined by ICP-OES. When the data are plotted in the Sr/Ca-Ba/Ca diagram which enables us to visualize igneous processes such as partial melting and crystal fractionation, the eucrites fall on a crystal fractionation line defined by a set of typical eucrites and the unique achondrite falls on a partial melting line through chondritic Sr/Ca and Ba/Ca ratios. The results suggest that the eucrites are a series of melts evolved from a primary magma by clinopyroxene and plagioclase fractionation, while the unique achondrite is a residual solid phase derived from a chondritic source material by a largescale partial melting. | |||||
| 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 20, p. 202-210, 発行日 1981-12 |
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