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Oxygen and hydrogen isotope characteristics of seawater in Otsuchi Bay and meteoric water of inflowing rivers
https://doi.org/10.15083/00076337
https://doi.org/10.15083/000763377b7015b9-c965-46a7-8814-0b87fd4a742e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
CMS410101.pdf (757.1 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-10-24 | |||||
| タイトル | ||||||
| タイトル | Oxygen and hydrogen isotope characteristics of seawater in Otsuchi Bay and meteoric water of inflowing rivers | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | oxygen isotope | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | hydrogen isotope | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | salinity | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | d-excess | |||||
| 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 | 10.15083/00076337 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
Kubota, Kaoru
× Kubota, Kaoru× Shirai, Kotaro× Higuchi, Tomihiko× Miyajima, Toshihiro |
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| 著者所属 | ||||||
| 値 | Institute for Space-Earth Environmental Research, Nagoya University | |||||
| 著者所属 | ||||||
| 値 | Atmosphere and Ocean Research Institute, The University of Tokyo | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Oxygen isotopes of biogenic calcium carbonate can be used to reconstruct salinity if the oxygen isotope–salinity (δ18O–S) relationship for the region of interest is known. In Otsuchi Bay, located on the northeast coast of Japan, δ18O–S relationship has been reported; however, the data were only collected from the mouth of the bay and covered a limited salinity range, which restricts the applicability of the relationship in reconstructions of salinity. This study is the first to establish a δ18O–S relationship for Otsuchi Bay that can be applied to a wide range of salinities, from zero (fresh water) to 34 (open ocean water), using water samples collected from September 2014 to September 2015 from the middle of the bay (Hourai-jima): The obtained relationship was δ18O=(0.28±0.01) S−(9.31±0.41), and the slope was shallower than that of the previous study. We also sampled waters in the lower reaches of the three main rivers that flow into Otsuchi Bay: the Otsuchi, Kozuchi and Unosumai rivers, and determined their oxygen and hydrogen isotope compositions. No statistically significant differences were detected between the rivers, and no distinct seasonality was observed. Calculated d-excess values of these newly obtained data are consistent with previously reported values of stream water collected in the region. | |||||
| 書誌情報 |
Coastal Marine Science 巻 41, 号 1, p. 1-6, 発行日 2018 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 13493000 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11957899 | |||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
| 出版者 | ||||||
| 出版者 | International Coastal Research Center, Atmosphere and Ocean Research Institute, the University of Tokyo | |||||
| 出版者別名 | ||||||
| 値 | 東京大学大気海洋研究所国際沿岸海洋研究センター | |||||
