葛洲坝水利工程施工所用大量砂石料中合有少量黄金,其平均含量约为0.04(克/米~3)。砂石料在筛洗过程中,金有较为明显的富集。本文在长办五○五地质队及中南冶金地质研究所对砂石料考察的基础上,对葛洲坝工程局砂石分局二号筛分楼砂石料生产情况进行了调查,就工程砂石料中砂金回收工作提出参考意见。 Gezhouba water conservancy project with a large amount of sand and gravel together with a small amount of gold, the average content of about 0.04 (g / m ~ 3). Sand stone in the screening process, the more obvious enrichment of gold. Based on the investigation of sand and gravel materials conducted by Long Office 500 Geological Team and Zhongnan Metallurgical Geological Institute, the production of aggregate for sandstone at No.2 sandstone sub-station of Gezhouba Engineering Bureau was investigated. Work for reference.