江苏徐州贾汪大京山白云岩矿床特征及开发利用前景

大京山白云岩矿床已达详查阶段，基本查明矿石资源储量达1亿多t。矿石中有用组分MgO最高品位21．52％，平均品位20．32％，矿石质量好、厚度大、夹石少、易开采。矿石可达耐火材料炉衬用特级乙类、熔剂用Ⅰ级和提炼金属镁用白云石质量标准，具有较广泛的用途和良好的开发利用前景。

On properties and utilization prospect of dolomite deposit in Dajingshan,Xuzhou of Jiangsu

Dajingshan dolomite deposit is located in the north extending end of Xuzhou arc tectonic zone of southeast margin of North China Platform with gentle occurrence.At present,the deposit enters a stage of detailed prospecting,and a fundamental identification of ore reserve reached 100 million ton,with MgO grade as high as 21.52%,and 20.32% on average.The ores are characteristic of fine quality,big thickness,and minor amount of bands and easily mined.The ores reach the standards of furnace liners of fire-resist...