農林省における地下水賦存調査について : I

概要

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Nineteen fifty-eight was the rear in which heavy investigations on groundwater resources for irrigation began. They have reached 31 in number up to date. The writers will citee three examples of theirs, i.e. afoot of a volcano, a tectonic basin and a limestone table-land. (1)The eastern foot of Myoko volcano The geology consists of such strata as are shown below:[table] Drillings and pumping tests were carried out to each of three parts. The conclusions are below mentioned: (A)Groudwater of an aquifer (a) is unconfined; that of (b) is confined. (B)Aquifers (a) and (b) have a high permeability, while (c) has a low one. There are so thick quarternary deposits in this basin that their lower limit reaches 150 m below the ground level ; they are rich in growndwater resources. Topographically, five ;pains can be seen ─Anyoji, Iizuka, Yanome and Sakino plains and a flood one in descending order. The quarternary system is mainly fluvial deposit, and it looks partly lacustrine one. Various kinds of data show rather slow tectonic sinking and deposition. According to electric prospectings, four suberranean valleys are presumed ; the western deposit is rich in gravel, and the eastern one varies muter near Fukushima city.
一般社団法人日本応用地質学会の論文
1970-09-01