大山北西部の湧泉の水理地質学的研究

概要

論文の詳細を見る
There are 64 springs in this area and they are found in following geologic members : Daisen tuff-breccia, Nagata pumice bed, Nishiobara tuff-breccia of Daisen pyroclastic group, Tataradoyama andesite, Nabeyama andesite, Tubogameyama andesite of Daisen andesite group and alluvium. For attempt to quantitative consideration about spring resource, trial calculations of discharge of spring are computed, and results are as follows : 1) Discharge averages of spring in each geologic members belong to 4 class (discharge 1_X10^2~1_X10^1 l/sec). 2) Apparent unit area discharges of spring in several geologic members are 10^3 ~ 10^4 M^3/day/KM^2. Moreover apparent unit area discharge of spring is ratio total discharge of springs in same geologic member to total area of that member. 3) Both discharge average and apparent unit area discharge ranks following order : Spring in Tubogameyama andesite Spring in Nabeyama andesite Spring in Tataradoyama andesite. From avove results, the writer conjectures that spring resource in Daisen andesite group is prominent quantitatively than in Daisen pyroclastic group.
一般社団法人日本応用地質学会の論文
1964-09-01