中部地方における温泉水中のホウ素の地球化学的研究(第1報) : 白山,北アルプス山地の温泉水

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The author determined water temperature, pH, oxidation reduction potential, boron, and other chemical components of hot spring waters from Hakusan and Japan North Alps in central Japan. On the basis of analytical results, the author studied the frequency distribution of boron content, and the correlation coefficient between boron and other chemical components, and calculated B/Cl atom ratio. The derived conclusions are in the followings. (1) Generally, the frequency distribution of boron is biased to a lower content side, and the most frequent range of boron contents is from 2.1 mg/l to 6.0 mg/l. (2) Boron contents have positive relationships to evaporation residue, sodium, potassium, calcium, chloride ion contents. Those relationships are divided into two groups of south areas (Hakusan, Ontake, Norikuragatake) and north areas (Yarigatake, Hakubagatake, Tateyama). (3) Minimum value of B/Cl atom ratio of hot spring waters from Hakusan and Japan North Alps is 0.00621, maximum value of it is 0.217, and mean value of it is 0.0359. The sources of boron in hot spring waters of Hakusan and Japan North Alps are inferred to be the basement rocks.
日本地球化学会の論文
1982-12-30