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Petrological and mineralogical study of enstatite chondrites with reference to their thermal histories
https://doi.org/10.15094/00005942
https://doi.org/10.15094/0000594233df8382-ee72-41d0-a9b6-7bda0c95abc8
名前 / ファイル | ライセンス | アクション |
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KJ00000040934 (2.3 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||||
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公開日 | 1999-03-01 | |||||||||
タイトル | ||||||||||
タイトル | Petrological and mineralogical study of enstatite chondrites with reference to their thermal histories | |||||||||
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 | |||||||||
ID登録 | ||||||||||
ID登録 | 10.15094/00005942 | |||||||||
ID登録タイプ | JaLC | |||||||||
ページ属性 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | P(論文) | |||||||||
著者名(英) |
Kimura, Makoto
× Kimura, Makoto
× Lin, Yangting
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著者所属(英) | ||||||||||
en | ||||||||||
Institute of Astrophysics and Planetary Science, Faculty of Science, Ibaraki University | ||||||||||
著者所属(英) | ||||||||||
en | ||||||||||
Guangzhou Institute of Geochemistry, Chinese Academy of Sciences | ||||||||||
抄録(英) | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | We investigated the complicated thermal histories of 8 Antarctic enstatite chondrites. In this report we present results of our mineralogical and petrological studies. Three of them (Yamato (Y)-791790,791810 and 791811) are EH4 chondrites, but experienced higher temperature events in comparison with most of the other EH4s. Y-791790 includes a shock-induced melt vein. Y-86760 is recognized as a new EH melt rock that cooled rapidly from high temperatures. Absences of daubreelite in the EH4s and roedderite and forsterite in the melt rocks are consistent with such high temperature events. We infer that the parent body (or bodies) of EH chondrites experienced heavy impacts after or during metamorphism. Some EH4s and melt rocks cooled rapidly from high temperatures near the surface of the parent body, whereas the others cooled slowly in the depth of the parent body or were later reheated. Y-791510 contains glassy matrix unusually enriched in CaO, in the interstices among enstatite grains. The opaque mineralogy of Y-791510 is inconsistent with that of EH or EL. We propose that Y-791510 represents a new grouplet of enstatite chondrites. | |||||||||
雑誌書誌ID | ||||||||||
収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AA11182426 | |||||||||
書誌情報 |
Antarctic meteorite research 巻 12, p. 1-18, 発行日 1999-03 |
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出版者 | ||||||||||
出版者 | National Institute of Polar Research |