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The global distribution of calcium on the Moon: Implications for high-Ca pyroxene in the eastern mare region
https://repo.qst.go.jp/records/47009
https://repo.qst.go.jp/records/47009972a42d1-0dd9-48ad-b5f7-a3ec2efabf55
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-12-24 | |||||
| タイトル | ||||||
| タイトル | The global distribution of calcium on the Moon: Implications for high-Ca pyroxene in the eastern mare region | |||||
| 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 | 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 |
Yamashita, N.
× Yamashita, N.× Gasnault, O.× Forni, O.× d'Uston, C.× Reedy, R.C.× Karouji, Y.× Kobayashi, S.× Hareyama, M.× Nagaoka, H.× Hasebe, N.× Kim, K.J.× 小林 進悟 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The first unambiguous global distribution of Ca on the Moon has been revealed by the Kaguya Gamma-Ray Spectrometer. The observation of the 3737 keV gamma rays from 40Ca with a high energy resolution Ge detector, corrected for fast neutrons, improved greatly our confidence in these remote sensing data. While the derived Ca abundance generally confirms the mare-highland dichotomy, we found that the eastern mare regions such as Crisium, Nectaris, and Fecunditatis exhibit unexpected high Ca abundances. This may be explained by regional concentrations of high-Ca clinopyroxene. Our Ca map also shows that the lowest CaO abundance found in the returned samples (∼8 wt%) may actually be common in Oceanus Procellarum, suggesting the possible sampling bias of Apollo and Luna missions. These observational results on Ca serve as a complementary criterion for better characterization of mare regions on the Moon. | |||||
| 書誌情報 |
Earth and Planetary Science Letters 巻 353/354, p. 93-98, 発行日 2012-11 |
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| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0012-821X | |||||
