Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1987-03-01 |
タイトル |
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言語 |
en |
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タイトル |
Mineralogy of lunar meteorites, Yamato-82192 and -82193 with reference to breccias in a breccia |
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) |
Takeda,Hiroshi
Mori,Hiroshi
Tagai,Tokuhei
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著者所属(英) |
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en |
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Mineralogical Institute, Faculty of Science, University of Tokyo |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
The mineralogy of pyroxene, olivine and plagioclase fragments, lithic clasts and glassy matrices of lunar meteorites, Yamato-82192 (Y-82192) and Yamato-82193 (Y-82193), has been studied by an electron microprobe and an analytical transmission electron microscope (TEM). The distribution of the chemical compositions of pyroxene grains in Y-82192 and -82193 bears a strong resemblance to one another and covers almost all known pyroxenes in nonmare pristine rocks. They are similar to those of a lunar regolith breccia 60019,but appear to be different from Y-791197 and ALHA81005 in that Y-82 lunar meteorites have significantly fewer pyroxenes with extremely high Fe content. The difference implies that Y-82192 and -82193 may contain a fewer Fe-rich mare basalt components. The presence of a breccia in a breccia in Y-82192 indicates complex impact histories in the region where this meteorite was derived. The texture of the matrix glass of Y-82192 in the TEM scale is different from that of ALHA81005. |
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 46,
p. 43-55,
発行日 1987-03
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