山西浑源张旺地区金多金属矿体三维成矿预测与评价

Three-dimensional metallogenic prediction and evaluation of gold polymetallic ore bodies in Zhangwang area, Hunyuan County, Shanxi Province

山西浑源张旺地区地质勘探资料相对匮乏,地质图比例尺小,钻孔数据和勘探线剖面图较少,导致成矿有利区的圈定比较困难。运用矿产资源三维预测技术方法,结合传统的地质找矿理论及已有的数据资料,建立了山西浑源张旺地区的三维地质模型,在此基础上总结该区金多金属矿体的主要控矿要素,建立找矿模型。然后依据研究区找矿模型,应用立方体预测模型提取成矿有利信息,依托“隐伏矿体三维预测系统”,利用连续插值模型和离散推测模型分别对研究区进行三维成矿预测,并分析对比2种方法的预测结果,验证了离散推测模型的可靠性。最终圈定了1个成矿远景区、2个找矿靶区。

The geological exploration data in the Zhangwang area of Hunyuan,Shanxi is relatively scarce,the scale of the geological map is small,and the drilling data and the profiles of the exploration line are inadequate,which makes the delineation of the favorable mineralization area difficult.Based on the three-dimensional prediction of mineral resources,combined with the traditional geological prospecting theory and the existing data in the current research area,a three-dimensional geological model of the Zhangwang area in Hunyuan,Shanxi Province was established.On top of that,the main ore-controlling elements of the gold polymetallic ore body in the study area were summarized to establish a prospecting model.According to the established prospecting model of the study area,the cubic prediction model was used to extract the favorable ore-forming information,and the three-dimensional metallogenic prediction of the study area was carried out by using the continuous interpolation model and the discrete prediction model respectively by relying on the″three-dimensional prediction system for concealed ore body″.The comparison of the prediction results provides a strong evidence for the reliability of the discrete speculation model.Finally,one metallogenic prospective region and two prospecting targets were delineated.