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 Classification for Some Small Chondrites in the Yamato-74 and -75 Meteorites |
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) |
Miyamoto, Masamichi
Takeda, Hiroshi
Yanai, Keizo
Matsumoto, Yukio
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著者所属(英) |
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en |
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Department of Earth Sciences, Kobe University/Mineralogical Institute, Faculty of Science, University of Tokyo/National Institute of Polar Research/Department of Mineralogical Science and Geology, Faculty of Science, Yamaguchi University |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
Electron microprobe studies have been made of olivines and pyroxenes in six Yamato chondrites collected in 1974 and 1975. On the basis of histograms of iron contents of olivines and pyroxenes, they are classified as follows : Yamato-(Y-) 75260 is a C2 carbonaceous chondrite; Y-74183 is an L6 ordinary chondrite; Y-74187,H6; Y-74198,H6; Y-74202,H5-6; and Y-74234,H4-5. In order to examine in detail the Mg-Fe chemical variation within the olivine or pyroxene grain found in some shocked ordinary chondrites, the Back-scattered Electron Image (BEI) observation has been carried out for several olivine grains in Yamato-74234. A larger percent mean deviation of olivine for these meteorites than what is expected from their texture, can be attributed to the presence of Fe-rich inclusions in the olivines. |
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. 140-147,
発行日 1979-12
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