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  1. D300 大学院環境学研究科
  2. D300a 雑誌掲載論文
  3. 学術雑誌

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/2237/00029509
f6ba8a23-d494-49e4-93c1-97b4020ba777
名前 / ファイル ライセンス アクション
52_107.pdf 52_107 (4.8 MB)
Item type 学術雑誌論文 / Journal Article(1)
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

WEKO 89333

ja 角皆, 潤

Search repository
Tsunogai, Urumu

× Tsunogai, Urumu

WEKO 89334

en Tsunogai, Urumu

Search repository
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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