一、龙江粘土矿概述龙江粘土藏量丰富,采运方便,是目前东北地区三大粘土矿之一。目前已开采的矿点有:龙江镇白土厂、齐齐哈尔市东方红公社九里大队,龙江砖瓦厂及龙江县白山粘土厂等处。仅龙江镇白土厂,年开采量就达万余吨。从矿脉的分布来看,东至白山乡,西到东方红公社长约30余华里,矿区的宽度约1.5华里。由于白粘土比黑粘土的比重小,因此白粘土多分布在黑粘土的上面,即在高 I. Overview of Longjiang clay deposit Longjiang clay is rich in reserves and convenient in handling. It is one of the three largest clay minerals in Northeast China. The mines that have been mined are: Longjiang Town Baitu Plant, Jiuli Brigade of Dongfanghong Commune of Qiqihar City, Longjiang Brick and Tile Factory, and Baishan Clay Factory of Longjiang County. Longjiang Town Baituchang alone has an annual extraction capacity of more than 10,000 tons. Judging from the distribution of the veins, from the east to Baishan Township, west to Dongfanghong Commune is about 30 miles away, and the width of the mining area is about 1.5 miles. Because white clay has a lower specific gravity than black clay, white clay is mostly distributed on top of black clay, ie