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A preliminary report on noble gases in the Kobe (CK) meteorite: A carbonaceous chondrite fell in Kobe City, Japan
https://doi.org/10.15094/00005998
https://doi.org/10.15094/000059981c923af1-b413-4427-b4ce-5152dd4ef452
名前 / ファイル | ライセンス | アクション |
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KJ00000040990 (1.0 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 2001-03-01 | |||||
タイトル | ||||||
タイトル | A preliminary report on noble gases in the Kobe (CK) meteorite: A carbonaceous chondrite fell in Kobe City, Japan | |||||
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 | 10.15094/00005998 | |||||
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) |
Matsumoto,Yoshiki
× Matsumoto,Yoshiki× Matsumoto,Takuya× Matsuda,Jun-ichi× Nakamura,Noboru |
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著者所属(英) | ||||||
en | ||||||
Department of Earth and Space Science, Graduate School of Science, Osaka University/Department of Earth and Space Science, Graduate School of Science, Osaka University/Department of Earth and Space Science, Graduate School of Science, Osaka University/Department of Earth and Planetary Sciences, Faculty of Science, Kobe University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | We have investigated elemental and isotopic compositions of noble gases in the newly-fallen CK chondrite, Kobe. The relatively low concentrations of primordial heavy noble gases (Kr and Xe) and the relatively high ^<129>Xe/^<132>Xe ratio (6.51±0.02) are similar to those found in previous studies of CK chondrites. The calculated cosmic-ray exposure age based on cosmogenic ^<21>Ne is 41Ma, and the K-Ar age is 2.1Ga. Based on calculated exposure ages and gas retention ages of Kobe and some other CK chondrites, it is likely that they have partially lost both radiogenic and cosmogenic He by solar heating during the time of exposure. Based on the ^<40>Ar retention age, we interpret that Kobe may also have experienced thermal events, possibly related to impacts about 2 billion years age. | |||||
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 14, p. 61-70, 発行日 2001-03 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |