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Chondritic breccias: An optical microscopic classification
https://nipr.repo.nii.ac.jp/records/16946
https://nipr.repo.nii.ac.jp/records/16946d8edf361-c02e-4dab-bc30-fef1f222bcde
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2022-06-17 | |||||
タイトル | ||||||
タイトル | Chondritic breccias: An optical microscopic classification | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Chondritic breccias: An optical microscopic classification | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Brecciation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Chondrites | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Shock | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Classification | |||||
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 | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Kimura, M.
× Kimura, M.× Yamaguchi, A. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Numerous meteorites are breccias, indicating asteroid collisions. Herein we systematically investigate brecciated chondrites to efficiently and quickly classify large numbers of breccias that are housed in organizations such as the National Institute of Polar Research (NIPR). We observed 1024 chondrites in the NIPR collection only by using optical microscopy. Many terms have been proposed to describe breccias. In order to classify breccias in a short time, we propose a determinative chart only by optical microscopy from terminology previously proposed and our observations. Fragmental breccias consist of primordial lithology as a clast or a host among fragmental fine-grained minerals. If the lithology is apparently consistent throughout, it is considered a monomict breccia. Otherwise, it is provisionally called a fragmental breccia. Breccias can be classified according to evidence of in situ melting. Melt breccias contain unmelted clasts, which preserve the original chondritic textures, whereas melt rocks do not contain such clasts and represent nearly total melting. | |||||
書誌情報 |
en : Polar Science 巻 32, p. 100847, 発行日 2022-06 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.polar.2022.100847 | |||||
関連名称 | 10.1016/j.polar.2022.100847 |