山东焦家金成矿带三维预测模型及靶区优选

为了实现焦家金成矿带资源的可持续开发利用，应用三维地质建模技术指导深部找矿工作迫在眉睫。文章从山东焦家金成矿带区域地质背景入手，全面收集研究区已有的地质、矿产、物探、化探等科研成果资料，结合前人的成矿理论研究，分析和总结有利成矿、控矿地质条件，并应用该区深部物化探信息资料，建立综合信息定量找矿模型，采用“立方体预测模型”及地质统计学方法推断深部成矿空间，实现真正意义的定位定量定概率的资源预测评价。预测结果表明，该成矿带深部找矿金资源量达842.88 t，具有较好的开发利用潜力。更重要的是，圈定了7个尚未开发的成矿有利靶区，并结合探矿工程模型，提出了具体的勘查建议，为深部找矿提供了科学依据。

The 3D Prediction Model and Division of Targets in Jiaojia Gold Ore Belt,Shandong Province

In order to realize the sustainable exploitation of the resources in Jiaojia gold concentration belt in Shandong Province, deep prospecting work is imminent. Starting from understanding of the local geological background, geological data, mineral data, geophysical exploration data and geochemical exploration data of the study area are comprehensively collected. Combined with the previous research on the metallogenic theory, this paper has analysed and summed up some favorable geological conditions for ore-formation and ore-controlling. As a case study of Jiaojia gold concentration belt and combined with the geophysical and geochemical data in this area, this paper has established comprehensive information prospecting model and deduced the deep mineralization space with the cubic predicting model and the appropriate geostatistical method. Finally, the 3D positioning, quantitative, and statistical prediction is achieved. The result indicates that forecast areas deep gold resources in the Jiaojia gold concentration belt is 842.88 t which suggests it has convincing potential for gold development and utilization. More importantly, it delineated 7 undeveloped predicted targets for deep prospecting and made further prospecting suggestions combining with the engineering model, which provided a scientific basis for prospecting exploration.