Published by Misasa Medical Center, Okayama University Medical School
Published by Misasa Medical Center, Okayama University Medical School

<Formerly known as>
岡大三朝分院研究報告 (63号-72号) 環境病態研報告 (57号-62号)
岡山大学温泉研究所報告 (5号-56号) 放射能泉研究所報告 (1号-4号)

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梅本 春次 岡山大学温泉研究所
原田 光 岡山大学温泉研究所
岡部 茂 岡山大学温泉研究所
宮腰 潤一郎 岡山大学温泉研究所
阪上 正信 岡山大学温泉研究所
田中 昌也 岡山大学温泉研究所
御船 政明 岡山大学温泉研究所
1. Layers containing thermal water in this district are thin, and lie at different depths (about 35, 55, and 60 meters) from the ground surface. There are evidences to show that these layers are intimately connected with one another. 2. The authors may suppose the existence of a structurally weak zone, along the line from Matsuzaki to Asozu, within which the issuing spots of thermal springs are located. 3. The head water levels of the thermal springs in this district are closely related with that of Lake Togo. Keeping pace with the variations of the water levels of Lake Togo and of artesian wells in its vicinity, the rate of flow of thermal springs vary; and the correlation between these variations is apparent. 4. The pumping suction of thermal water at one spring affects the flow of water at other springs within distances of 150 to 200 meters therefrom, though the direct sources of thermal water supply for the latter springs may be different from that of the former. 5. The spring water in this district is considered to be a mixture of hot water, containing sodium, calcium, chloride, and sulfate ions, and cold water, containing bicarbonate ion. The diversity of chemical constitutions of different spring waters is explained as due to the difference in proportion in which the hot and cold waters are mixed.