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ID 40162
フルテキストURL
タイトル(別表記)
Isotopic study of Hot Springs in Japan, I Techniques for oxygen isotopic analysis of spring water
著者
松葉谷 治 岡山大学温泉研究所温泉化学部門
酒井 均 岡山大学温泉研究所温泉化学部門
田中 ひな子 岡山大学温泉研究所温泉化学部門
上村 多鶴恵 岡山大学温泉研究所温泉化学部門
抄録
The CO(2)-H(2)O isotopic equilibration technique was studied for the routine analyses of the oxygen isotopic ratios of hot spring water. A reaction vessel containing 2 ml of water and 0.16 m mole of tank CO(2) was shaken for 18 hrs. in a constant-temperature bath at 25.0℃ (Figs. 1, 2, and 3), and the CO(2) was analyzed for the oxygen isotopic ratio by a MCKINNEY type mass spectrometer. Several aliquots of 1, 2 and 5 ml from a same water were each analyzed three times by successive equilibration (Table 1). The observed values differ depending on the volume of water but the corrected values by equation (6) indicate excellent agreement, implying the whole processes to be well controlled. The reproducibility of the isotopic analyses is better than ± 0.1‰ (Table 2) in most cases, and the accuracy would not be worse than ± 0.2‰ as demonstrated by the interlaboratory comparison of some standard samples (Table 3). Oxygen isotopic ratios of water from more than 70 hot springs in Japan are presented (Table 5). Although the results will be discussed in the following issues of this series of paper, most hot spring water have the δ(18)O values similar to those of meteoric waters in Japan. However, spring water from Arima Hot Springs, Hyogo-Pref., which has been known by its abnormally high chloride and low sulfate concentrations is of an exceptionally high δ(18)O value.
備考
原著論文 (Original Paper)
発行日
1971-03-26
出版物タイトル
岡山大学温泉研究所報告
出版物タイトル(別表記)
Papers of the Institute for Thermal Spring Research, Okayama University
40巻
出版者
岡山大学温泉研究所
出版者(別表記)
Institute for Thermal Spring Research, Okayama University
開始ページ
33
終了ページ
40
ISSN
0369-7142
NCID
AN00032853
資料タイプ
紀要論文
言語
Japanese
論文のバージョン
publisher
査読
無し
Eprints Journal Name
mmc