Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1979-12-01 |
タイトル |
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言語 |
en |
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タイトル |
A Preliminary Classification of Yamato Chondrites with Reference to Metal-Sulfide Equilibrium |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
著者名(英) |
Matsueda, Hiroharu
Kano, Hiroshi
Yanai, Keizo
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著者所属(英) |
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en |
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Institute of Mining Geology, Mining College, Akita University |
著者所属(英) |
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en |
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Institute of Mining Geology, Mining College, Akita University |
著者所属(英) |
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en |
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National Institute of Polar Research |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
Silicates, metals and sulfides of the Yamato chondrites from Antarctica were analyzed by means of EPMA, and the chemical-petrologic classification was made with the supplement of textural observation by microprobe technique. On the basis of per cent mean deviation of iron contents in olivines and orthopyroxenes, the following chondrites have been identified; one H type equilibrated chondrite; one H and three L type moderately unequilibrated ones; 5 H (?) unequilibrated ones. Three-phase assemblages of kamacite, taenite and troilite are found in moderately unequilibrated chondrites. Cobalt concentrates selectively in kamacite but not in troilite. Nickel partition relationships between metals and sulfides in chondrites suggest the formation of the unequilibrated chondrites at relatively higher temperatures than in the equilibrated ones. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00733561 |
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue
巻 15,
p. 24-40,
発行日 1979-12
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