石灰石的大半是供水泥生产用,由于水泥生产的不景气,1985年石灰石的产量为163,757千吨,比1984年减少3.6%。日本十大石灰石矿山的产量除八户石灰、武甲增长较大外,大部分矿山均有不同程度的减产。日本十大石灰石矿山的名称、产量等详见下表所列。 Most of limestone is used for cement production. Due to the slump in cement production, the limestone output in 1985 was 163,757 kilotons, which was 3.6% lower than in 1984. The output of the top ten limestone mines in Japan, with the exception of the eight families of lime and armor, which have grown at a large rate, has resulted in production cuts at different levels in most mines. The names and output of the ten largest limestone mines in Japan are listed in the table below.