亀の瀬地すべり地における地下水の化学組成と流量について

Abstract

The variations with time in the concentrations of dissolved elements and the discharge of theground waters in the Kamenose landslide area in Osaka Prefecture were investigated from July 1972to January 1973 in order to obtain the basic data for the study of estimate of the amounts of clayminerals produced by weathering processes through the chemical compositions of ground waters inthis area.The authors have examined the relationships among the chemical species contents of the waters, and between the chemical species contents and discharge of them. The following have been attain-ed: A clear negative relationship is observed between sulfate and bicarbonate contents, a clearpositive relationship between ea]cium and bicarbonate contents in the waters of the drain tunnel, sul-fate content increases and bicarbonate content decreases with the increasing discharge of bore holewaters in the tunnel at high altitude, and the concentrations of sulfate and bicarbonate ions werescarcely changed in spite of the increasing discharge at low altitude.