水質からみた亀の瀬地すべり地帯の粘土鉱物生産量の推定

Abstract

64 water samples have been collected from the Kamenose landslide area, Osaka Prefecture, to estimate the amounts of weathering products through the chemical compositions of the waters.When equilibrium is maintained between silicate minerals and water, certain relationshipsamong chemical species contents of the water should be assumed. Then, the authors have ex-ammed the relationships among the chemical species contents of the waters, and the followinghave been obtained: Montmorillonites and kaolinite are in equilibrium with the waters of theKamenose landslide area, and the amounts of montmorillonites and kaolinite produced by CO2-bearing waters reacting with parent rocks are estimated as several tons per year in this area.