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Chemical Constituents in the Surface Snow in Mizuho Plateau
https://nipr.repo.nii.ac.jp/records/869
https://nipr.repo.nii.ac.jp/records/8694b40bd76-f8c6-4bb4-b1af-d0648ff92472
名前 / ファイル | ライセンス | アクション |
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KJ00000011843 (923.0 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1978-01-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Chemical Constituents in the Surface Snow in Mizuho Plateau | |||||
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 | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Murozumi, M.
× Murozumi, M.× Nakamura, S.× Yoshida, Y. |
|||||
著者所属(英) | ||||||
en | ||||||
Muroran Institute of Technology | ||||||
著者所属(英) | ||||||
en | ||||||
Muroran Institute of Technology | ||||||
著者所属(英) | ||||||
en | ||||||
Muroran Institute of Technology | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Chemical features and profiles of the ice sheet in Mizuho Plateau have been revealed by means of newly developed analytical techniques such as atomic absorption spectrophotometry, neutron activation method and isotope dilution mass spectrometry. The chemical concentration is as low as ppb level even for the major components, Na, K, Mg and Ca, and its distribution is homogeneous in the surface sheet but shows much vertical complexity. Silicate dusts which functioned as the condensation nuclei for the formation of snow crystal in the upper atmosphere and which were captured by snow fall process are poor, while sea salts account for more than 90per cent of the total weight of components. Annual accumulation of chemical components, μg/(cm)^2,is 0.1 for silicate dusts and 0.40,0.03,0.1 and 0.06 for Na, K, Mg and Ca originated from the latter source. Annual accumulation of Hg and Pb is at the level of 0.1 and 1.5 ng/(cm)^2 at the present time while 0.02 and 0.3ng/(cm)^2 in ancient times. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00733561 | |||||
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue 巻 7, p. 255-263, 発行日 1978-01 |