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  1. 139 大気海洋研究所
  2. 80 国際沿岸海洋研究センター
  3. Coastal Marine Science
  4. 41
  5. 1
  1. 0 資料タイプ別
  2. 30 紀要・部局刊行物
  3. Coastal Marine Science
  4. 41
  5. 1

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/10.15083/00076337
7b7015b9-c965-46a7-8814-0b87fd4a742e
名前 / ファイル ライセンス アクション
CMS410101.pdf CMS410101.pdf (757.1 kB)
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 http://purl.org/coar/resource_type/c_6501
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

WEKO 152546

Kubota, Kaoru

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Shirai, Kotaro

× Shirai, Kotaro

WEKO 152547

Shirai, Kotaro

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Higuchi, Tomihiko

× Higuchi, Tomihiko

WEKO 152548

Higuchi, Tomihiko

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Miyajima, Toshihiro

× Miyajima, Toshihiro

WEKO 152549

Miyajima, Toshihiro

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著者所属
著者所属 Institute for Space-Earth Environmental Research, Nagoya University
著者所属
著者所属 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
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
東京大学大気海洋研究所国際沿岸海洋研究センター
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