基于找矿模型的云南个旧某深部隐伏矿体三维预测

Three-dimensional Prediction of Blind Orebodies in Gejiu,Yunnan Province Based on the Ore-Search Model

通过分析个旧锡铜多金属(东)矿区的成矿地质条件,结合多年勘查开采经验,建立了该研究区的找矿地质模型;并且在此模型的基础上以Surpac软件为平台利用收集到的剖面、钻孔等数据资料建立了三维可视化模型,包括地表、地层、断裂、岩体、已知矿体以及钻孔,在此基础上划分立方体单元,对研究区深部矽卡岩型矿体进行预测圈定,得到五个预测靶区。并且计算了各个靶区的资源量,总结出该研究区深部的主要控矿因素为地层、断裂和岩体。应用实例表明了成熟的找矿模型对成矿预测的重要性,以及三维隐伏矿体的定位、定量及定概率预测的有效性。

By analyzing the geological conditions of mineralization in the Gejiu（east） Tin-copper pelynaetallic mine,combined with years of experiences in mining exploration,we established an ore-search model for this area. On the basis of this model,using collected profiles and drilling data,taking Surpae software as a platform,we developed a three-dimensional geological model for prospecting,including the surface, stratigraphy ,faults, rocks, and drilling of known ore bodies. Then,we divided the study space into cube units ,predicted the deep skam ore bodies ,and determined five targets for prospecting. And we calculated the amount of resources of each target. We concluded that major ore-controlling factors in deep strata are strata,faults ,and rock bodies. The application case shows the importance of the mature prospecting model, and its effectiveness in three-dimensional prediction to hidden ore bodies on quantity ,position and probability.