本文阐述逻辑相息法的某些改进。引入有利度和信息度作为评价对象的主要指标,建立起湘黔汞矿带南段三态逻辑信息模型。讨论了汞矿资源量同有利度的相关关系,达到了定位定量预测的目的。文章指出:湘黔汞带南段,经多年地质勘探工作已基本探明,但还有一定的资源潜力。本次研究获得的有利成矿地段,有的就是已知矿点或在已知矿床外围及延伸部位,可望增加储量。另外一些地段因矿小、分散和埋藏过深,凭目前技术经济条件,尚难发现和提供工业利用,可视为潜力资源,供长远规划参考。 This article explains some improvements in the logic of phase-contrast. By introducing the degree of profitability and information degree as the main indicators of the evaluation object, a tri-state logic information model for the southern section of the Hunan-Guizhou mercury ore zone is established. Discussed the correlation between the amount of mercury resources and the degree of profit, and achieved the purpose of quantitative prediction of location. The article points out that the south section of the mercury-mercury belt in Hunan and Guizhou has been basically proved by many years of geological exploration work, but there is still some potential for resources. The favorable ore-forming areas obtained in this study are some known ore-mines or the extension of the known deposits and are expected to increase reserves. In other areas, due to small mines, scattered and buried too deep, with the current technical and economic conditions, it is still hard to find and provide industrial utilization, which can be regarded as a potential resource for long-term planning and reference.