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Infrared diffuse reflectance spectra of weathered and unweathered CR2 chondrites: Comparison with asteroids
https://doi.org/10.15094/00005930
https://doi.org/10.15094/0000593030e5e8d0-d3fb-4898-a5fa-8b9c5a64046b
名前 / ファイル | ライセンス | アクション |
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KJ00000040922 (818.0 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1998-03-01 | |||||
タイトル | ||||||
タイトル | Infrared diffuse reflectance spectra of weathered and unweathered CR2 chondrites: Comparison with asteroids | |||||
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 | 10.15094/00005930 | |||||
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) |
Sato,Kimiyasu
× Sato,Kimiyasu× Miyamoto,Masamichi |
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著者所属(英) | ||||||
en | ||||||
Mineralogical Institute, Graduate School of Science, University of Tokyo/Mineralogical Institute, Graduate School of Science, University of Tokyo | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The presence and intensity of absorption band near 3μm in the reflectance spectra are due to the presence and abundance of hydrates and/or hydroxylions. Previously, we have shown that Renazzo (CR2 chondrite) is an excellent spectral match to 2 Pallas (B-type asteroid) in the wavelength region near 3μm. In this paper, we have measured infrared diffuse reflectance spectra of eight Antarctic CR2 chondrites and have compared reflectance spectra of CR2 chondrites with those of eight asteroids which belong to the C, G, B and F taxonomic classes. The spectral absorption near 3μm of Antarctic CR2 chondrites are deepened and rounded compared to that of Renazzo (fell 1824). This difference implies the presence of corrosion products probably due to terrestrial weathering of the Antarctic CR2 chondrites. This is the reason why no asteroids has been found that has an Antarctic CR2 meteorite counterpart. In addition to the close similarity between Pallas and Renazzo, the overall spectral profile of 511 Davida also exhibit similarity to the Renazzo spectrum. | |||||
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 11, p. 155-162, 発行日 1998-03 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |