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軽元素安定同位体比の高感度分析に基づく地球惑星科学研究・地球環境科学研究の新展開
http://hdl.handle.net/2237/00029509
http://hdl.handle.net/2237/00029509f6ba8a23-d494-49e4-93c1-97b4020ba777
名前 / ファイル | ライセンス | アクション |
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52_107 (4.8 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-03-14 | |||||
タイトル | ||||||
タイトル | 軽元素安定同位体比の高感度分析に基づく地球惑星科学研究・地球環境科学研究の新展開 | |||||
言語 | ja | |||||
その他のタイトル | ||||||
その他のタイトル | Recent advances in earth and environmental sciences using natural stable isotopes as tracers | |||||
言語 | en | |||||
著者 |
角皆, 潤
× 角皆, 潤× Tsunogai, Urumu |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Stable isotopes | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | CF-IRMS | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Molecular hydrogen | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Volcanic plume | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Isotope exchange equilibrium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Nitrate | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 17O excess | |||||
抄録 | ||||||
内容記述 | By using the hydrogen isotope exchange equilibrium between molecular hydrogen (H2) and water vapor, a new method called HIReTS (Hydrogen Isotopes Remote Temperature Sensing) was proposed for remote sensing of fumarole outlet temperatures. In this method, the hydrogen isotopic composition (D) of fumarolic H2 is obtained remotely from observation in a volcanic plume, and the outlet temperature is then derived from the obtained D of fumarolic H2. The HIReTS method can be used to obtain the fumarolic temperature remotely in active volcanoes when the actual fumaroles are inaccessible. Recent advances in using the 17O-excess (Δ17O) of nitrate were summarized as well. Within the possible sources of nitrate in the natural environment, only atmospheric nitrate that is produced from atmospheric NO through photochemical reactions can be characterized by the anomalous enrichment in 17O, reflecting the transfer of an oxygen atom from ozone. In addition, Δ17O is stable during partial metabolism̶such as denitrification and assimilation, so by using these characteristics of Δ17O, the author and coworkers were able to trace the fate of atmospheric nitrate deposited onto surface ecosystems. This also allowed the author and co-workers to propose a new method to quantify nitrate dynamics̶production rate through nitrification and metabolic rate through assimilation and denitrification̶in aquatic environments, using the Δ17O of nitrate. The Δ17O method is considered to offer an alternative to the traditional artificial tracer techniques for the determination of nitrate dynamics, including temporal variations. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | ja | |||||
出版者 | 日本地球化学会 | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.14934/chikyukagaku.52.107 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0386-4073 | |||||
ISSN(Online) | ||||||
収録物識別子タイプ | EISSN | |||||
収録物識別子 | 2188-5923 | |||||
書誌情報 |
ja : 地球化学 巻 52, 号 3, p. 107-129, 発行日 2018-09-25 |
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著者版フラグ | ||||||
値 | publisher |