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Chemical composition of Y-793605, a martian lherzolite
https://doi.org/10.15094/00005889
https://doi.org/10.15094/00005889d7ceec5b-5ef7-428e-93fa-aae369b2ab20
名前 / ファイル | ライセンス | アクション |
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KJ00000040881 (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 | 1997-09-01 | |||||
タイトル | ||||||
タイトル | Chemical composition of Y-793605, a martian lherzolite | |||||
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 | 10.15094/00005889 | |||||
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× Kong, Ping× Shinotsuka, Kazunori |
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著者所属(英) | ||||||
en | ||||||
Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | As a part of consortium study, we have analyzed the Yamato-793605 lherzolitic shergottite by instrumental neutron activation analysis (INAA), radiochemical neutron activation analysis (RNAA) and inductively coupled plasma mass spectrometry (ICP-MS). For comparison, ALH 77005 was also analyzed by INAA and RNAA. Compositionally, Y-793605 is similar to ALH 77005 (and also to LEW 88516). REE abundances for Y-793605 are similar to but slightly lower than those for ALH 77005 and are characterized by a hump around Dy in the CI-normalized pattern. Iridium/Os ratios of Y-793605 and ALH 77005 are exactly chondritic, suggesting that the shergottite parent material had an approximately chondritic Ir/Os ratio. On the other hand, Ni/Co ratios of these two lherzolitic shergottites are lower than the CI value, with both elements being more abundant than refractory siderophiles such as Os and Ir. Presumably, both elements partly existed as oxides when the core formation occurred, but Ni was partitioned into the core more effectively than Co because of the higher stability of the Co oxide. Molybdenum and W are also largely fractionated in Y-793605 and ALH 77005,with Mo being more depleted than W. Apparently, segregation of W into the core was inefficient whereas Mo was more effectively incorporated into the metal-sulfide core. These observations suggest that the oxygen fugacity was considerably elevated when the core formed (at least at the latest stage of core formation). | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11182426 | |||||
書誌情報 |
Antarctic meteorite research 巻 10, p. 83-94, 発行日 1997-09 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |