On the Tsuruno-yu Hot Spring

Abstract

The Tsuruno-yu hot spring is situated near the Ogochi Dam which is now under construction on the upstream reach of the Tama river.
After the construction of Ogochi Dam, the site of the spring will be sunken about 82 meters below the high water surface.
This article deals with the results of the geological survey and the long range hydrographic studies of the spring water. It has been revealed that the site of spring coincides with the region of lenticular sandstone intercalated in slate beds. Both Volume and temperature of spring water are closely related to the amount of rainfall.