秋田県笹子山鉱山の新石膏鉱床の探査について
1956 年 1956 巻 25 号 p. 1219-1223
詳細
1956 年 1956 巻 25 号 p. 1219-1223
New gypsum deposits, containing some black ore, have been discovered at the southern end of Akita Prefecture.
After geological occurrences, the deposits may be of economic importance, and more advanced prospecting may be necessary for securing their extents by borings and driftings.
