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Major element chemical compositions and chemical types of chondrules in unequilibrated E, O, and C chondrites from Antarctica
https://nipr.repo.nii.ac.jp/records/1556
https://nipr.repo.nii.ac.jp/records/1556da85b527-6667-454d-b628-f8e8fb7ea735
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||
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公開日 | 1983-12-01 | |||||||
タイトル | ||||||||
言語 | en | |||||||
タイトル | Major element chemical compositions and chemical types of chondrules in unequilibrated E, O, and C chondrites from Antarctica | |||||||
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) |
Ikeda, Yukio
× Ikeda, Yukio
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著者所属(英) | ||||||||
en | ||||||||
Department of Earth Sciences, Faculty of Science,Ibaraki University | ||||||||
抄録(英) | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | The major element chemical compositions of most chondrules correspond to the compositions of mixtures of olivine and low-Ca pyroxene with constant amounts of feldspar (or feldspathoid) and high-Ca pyroxene; other chondrules contain variable amounts of normative feldspar (or feldspathoid), high-Ca pyroxene, spinel, SiO_2-minerals, etc. The Al, Na, and K contents of most chondrules reflect the composition of the ternary feldspar (An-Ab-Kf) of the chondrule precursor material, and chemical types of chondrules (KF, SP, IP, CP) are defined on the basis of the proportions of Al, Na, and K. The KF chondrule type is restricted to brecciated LL chondrites. The CP type is rare, and occurs mainly in carbonaceous chondrites. The SP and IP types are most abundant in all chondrites; the relative frequency of SP and IP types differs among brecciated LL type chondrites, ordinary chondrites (except for the brecciated LL type), and carbonaceous chondrites. | |||||||
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. 122-145, 発行日 1983-12 |