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The Ni, Fe and Co contents of metal phases in the Allende, Holbrook and Nuevo Mercurio chondrites
https://nipr.repo.nii.ac.jp/records/1561
https://nipr.repo.nii.ac.jp/records/1561913fe353-e5a7-4206-bb1b-69b984e9fd17
名前 / ファイル | ライセンス | アクション |
---|---|---|
KJ00000012194.pdf (1.5 MB)
|
Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 1983-12-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | The Ni, Fe and Co contents of metal phases in the Allende, Holbrook and Nuevo Mercurio chondrites | |||||
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) |
Miura, Yasunori
× Miura, Yasunori× Smith, Dorian G.W.× Launspach, S. |
|||||
著者所属(英) | ||||||
en | ||||||
Department of Mineralogical Sciences and Geology, Faculty of Science, Yamaguchi University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Geology, The University of Alberta | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Geology, The University of Alberta | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The Ni, Fe and Co contents of metal phases in the Allende, Holbrook and Nuevo Mercurio chondrites have been obtained using an automated electron microprobe fitted with both wavelength and energy dispersive spectrometers. The variation patterns of Ni-Fe-Co metal used in this study are discussed from the standpoints of the volume percentage and average composition of each region, and the overall average composition of the metal phases. An advantage of random selection of many analytical points is that bulk composition of plessite becomes apparent even when the scale of intergrowth is generally less than the beam diameter. Co contents of kamacite in these chondrites are inconsistent with those reported previously, but the general tendency of Co to increase in the kamacite in chondrites from H, L to LL groups, is supported by this study. Although the variation patterns of Ni-Co observed so far for L4,H5 and CV3 chondrites are simple, six L6 chondrites, including those reported previously, show significant difference in Co contents and the concentration and abundance characteristics of Ni-Fe-Co patterns of the metal phases. The great similarity of composition of each region of these patterns obtained from two samples of Holbrook and two samples of Allende which came from different collections, indicates that the variation patterns of Ni-Co in the metal phases provide a means of characterization or "fingerprinting", as do the great differences in the variation patterns of Fe-Ni-Co which occur from one chondrite to another or even within the same group and petrologic type. | |||||
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 30, p. 224-236, 発行日 1983-12 |